From fced34e3d8c31c9f9e69bbad79271f93c989457e Mon Sep 17 00:00:00 2001 From: gabime Date: Sat, 19 Aug 2017 15:46:01 +0300 Subject: [PATCH] bumped fmt version to 4.0.0 --- include/spdlog/fmt/bundled/format.cc | 535 +-- include/spdlog/fmt/bundled/format.h | 5247 +++++++++++-------------- include/spdlog/fmt/bundled/ostream.cc | 14 +- include/spdlog/fmt/bundled/ostream.h | 129 +- include/spdlog/fmt/bundled/posix.cc | 5 +- include/spdlog/fmt/bundled/posix.h | 512 +-- include/spdlog/fmt/bundled/time.h | 161 +- 7 files changed, 2846 insertions(+), 3757 deletions(-) diff --git a/include/spdlog/fmt/bundled/format.cc b/include/spdlog/fmt/bundled/format.cc index 2bd774e44..09d2ea9fd 100644 --- a/include/spdlog/fmt/bundled/format.cc +++ b/include/spdlog/fmt/bundled/format.cc @@ -41,6 +41,9 @@ #endif #if FMT_USE_WINDOWS_H +# if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN) +# define WIN32_LEAN_AND_MEAN +# endif # if defined(NOMINMAX) || defined(FMT_WIN_MINMAX) # include # else @@ -50,8 +53,6 @@ # endif #endif -using fmt::internal::Arg; - #if FMT_EXCEPTIONS # define FMT_TRY try # define FMT_CATCH(x) catch (x) @@ -80,9 +81,9 @@ static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...) { namespace fmt { -FMT_FUNC internal::RuntimeError::~RuntimeError() throw() {} -FMT_FUNC FormatError::~FormatError() throw() {} -FMT_FUNC SystemError::~SystemError() throw() {} +FMT_FUNC internal::RuntimeError::~RuntimeError() FMT_DTOR_NOEXCEPT {} +FMT_FUNC FormatError::~FormatError() FMT_DTOR_NOEXCEPT {} +FMT_FUNC SystemError::~SystemError() FMT_DTOR_NOEXCEPT {} namespace { @@ -105,27 +106,6 @@ inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) { # define FMT_SWPRINTF swprintf #endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT) -// Checks if a value fits in int - used to avoid warnings about comparing -// signed and unsigned integers. -template -struct IntChecker { - template - static bool fits_in_int(T value) { - unsigned max = INT_MAX; - return value <= max; - } - static bool fits_in_int(bool) { return true; } -}; - -template <> -struct IntChecker { - template - static bool fits_in_int(T value) { - return value >= INT_MIN && value <= INT_MAX; - } - static bool fits_in_int(int) { return true; } -}; - const char RESET_COLOR[] = "\x1b[0m"; typedef void (*FormatFunc)(Writer &, int, StringRef); @@ -191,7 +171,8 @@ int safe_strerror( : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {} int run() { - strerror_r(0, 0, ""); // Suppress a warning about unused strerror_r. + // Suppress a warning about unused strerror_r. + strerror_r(0, FMT_NULL, ""); return handle(strerror_r(error_code_, buffer_, buffer_size_)); } }; @@ -230,222 +211,19 @@ void report_error(FormatFunc func, int error_code, std::fwrite(full_message.data(), full_message.size(), 1, stderr); std::fputc('\n', stderr); } - -// IsZeroInt::visit(arg) returns true iff arg is a zero integer. -class IsZeroInt : public ArgVisitor { - public: - template - bool visit_any_int(T value) { return value == 0; } -}; - -// Checks if an argument is a valid printf width specifier and sets -// left alignment if it is negative. -class WidthHandler : public ArgVisitor { - private: - FormatSpec &spec_; - - FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler); - - public: - explicit WidthHandler(FormatSpec &spec) : spec_(spec) {} - - void report_unhandled_arg() { - FMT_THROW(FormatError("width is not integer")); - } - - template - unsigned visit_any_int(T value) { - typedef typename internal::IntTraits::MainType UnsignedType; - UnsignedType width = static_cast(value); - if (internal::is_negative(value)) { - spec_.align_ = ALIGN_LEFT; - width = 0 - width; - } - if (width > INT_MAX) - FMT_THROW(FormatError("number is too big")); - return static_cast(width); - } -}; - -class PrecisionHandler : public ArgVisitor { - public: - void report_unhandled_arg() { - FMT_THROW(FormatError("precision is not integer")); - } - - template - int visit_any_int(T value) { - if (!IntChecker::is_signed>::fits_in_int(value)) - FMT_THROW(FormatError("number is too big")); - return static_cast(value); - } -}; - -template -struct is_same { - enum { value = 0 }; -}; - -template -struct is_same { - enum { value = 1 }; -}; - -// An argument visitor that converts an integer argument to T for printf, -// if T is an integral type. If T is void, the argument is converted to -// corresponding signed or unsigned type depending on the type specifier: -// 'd' and 'i' - signed, other - unsigned) -template -class ArgConverter : public ArgVisitor, void> { - private: - internal::Arg &arg_; - wchar_t type_; - - FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter); - - public: - ArgConverter(internal::Arg &arg, wchar_t type) - : arg_(arg), type_(type) {} - - void visit_bool(bool value) { - if (type_ != 's') - visit_any_int(value); - } - - template - void visit_any_int(U value) { - bool is_signed = type_ == 'd' || type_ == 'i'; - using internal::Arg; - typedef typename internal::Conditional< - is_same::value, U, T>::type TargetType; - if (sizeof(TargetType) <= sizeof(int)) { - // Extra casts are used to silence warnings. - if (is_signed) { - arg_.type = Arg::INT; - arg_.int_value = static_cast(static_cast(value)); - } else { - arg_.type = Arg::UINT; - typedef typename internal::MakeUnsigned::Type Unsigned; - arg_.uint_value = static_cast(static_cast(value)); - } - } else { - if (is_signed) { - arg_.type = Arg::LONG_LONG; - // glibc's printf doesn't sign extend arguments of smaller types: - // std::printf("%lld", -42); // prints "4294967254" - // but we don't have to do the same because it's a UB. - arg_.long_long_value = static_cast(value); - } else { - arg_.type = Arg::ULONG_LONG; - arg_.ulong_long_value = - static_cast::Type>(value); - } - } - } -}; - -// Converts an integer argument to char for printf. -class CharConverter : public ArgVisitor { - private: - internal::Arg &arg_; - - FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter); - - public: - explicit CharConverter(internal::Arg &arg) : arg_(arg) {} - - template - void visit_any_int(T value) { - arg_.type = internal::Arg::CHAR; - arg_.int_value = static_cast(value); - } -}; } // namespace -namespace internal { - -template -class PrintfArgFormatter : - public ArgFormatterBase, Char> { - - void write_null_pointer() { - this->spec().type_ = 0; - this->write("(nil)"); - } - - typedef ArgFormatterBase, Char> Base; - - public: - PrintfArgFormatter(BasicWriter &w, FormatSpec &s) - : ArgFormatterBase, Char>(w, s) {} - - void visit_bool(bool value) { - FormatSpec &fmt_spec = this->spec(); - if (fmt_spec.type_ != 's') - return this->visit_any_int(value); - fmt_spec.type_ = 0; - this->write(value); - } - - void visit_char(int value) { - const FormatSpec &fmt_spec = this->spec(); - BasicWriter &w = this->writer(); - if (fmt_spec.type_ && fmt_spec.type_ != 'c') - w.write_int(value, fmt_spec); - typedef typename BasicWriter::CharPtr CharPtr; - CharPtr out = CharPtr(); - if (fmt_spec.width_ > 1) { - Char fill = ' '; - out = w.grow_buffer(fmt_spec.width_); - if (fmt_spec.align_ != ALIGN_LEFT) { - std::fill_n(out, fmt_spec.width_ - 1, fill); - out += fmt_spec.width_ - 1; - } else { - std::fill_n(out + 1, fmt_spec.width_ - 1, fill); - } - } else { - out = w.grow_buffer(1); - } - *out = static_cast(value); - } - - void visit_cstring(const char *value) { - if (value) - Base::visit_cstring(value); - else if (this->spec().type_ == 'p') - write_null_pointer(); - else - this->write("(null)"); - } - - void visit_pointer(const void *value) { - if (value) - return Base::visit_pointer(value); - this->spec().type_ = 0; - write_null_pointer(); - } - - void visit_custom(Arg::CustomValue c) { - BasicFormatter formatter(ArgList(), this->writer()); - const Char format_str[] = {'}', 0}; - const Char *format = format_str; - c.format(&formatter, c.value, &format); - } -}; -} // namespace internal -} // namespace fmt - -FMT_FUNC void fmt::SystemError::init( +FMT_FUNC void SystemError::init( int err_code, CStringRef format_str, ArgList args) { error_code_ = err_code; MemoryWriter w; - internal::format_system_error(w, err_code, format(format_str, args)); + format_system_error(w, err_code, format(format_str, args)); std::runtime_error &base = *this; base = std::runtime_error(w.str()); } template -int fmt::internal::CharTraits::format_float( +int internal::CharTraits::format_float( char *buffer, std::size_t size, const char *format, unsigned width, int precision, T value) { if (width == 0) { @@ -459,7 +237,7 @@ int fmt::internal::CharTraits::format_float( } template -int fmt::internal::CharTraits::format_float( +int internal::CharTraits::format_float( wchar_t *buffer, std::size_t size, const wchar_t *format, unsigned width, int precision, T value) { if (width == 0) { @@ -473,7 +251,7 @@ int fmt::internal::CharTraits::format_float( } template -const char fmt::internal::BasicData::DIGITS[] = +const char internal::BasicData::DIGITS[] = "0001020304050607080910111213141516171819" "2021222324252627282930313233343536373839" "4041424344454647484950515253545556575859" @@ -492,40 +270,40 @@ const char fmt::internal::BasicData::DIGITS[] = factor * 1000000000 template -const uint32_t fmt::internal::BasicData::POWERS_OF_10_32[] = { +const uint32_t internal::BasicData::POWERS_OF_10_32[] = { 0, FMT_POWERS_OF_10(1) }; template -const uint64_t fmt::internal::BasicData::POWERS_OF_10_64[] = { +const uint64_t internal::BasicData::POWERS_OF_10_64[] = { 0, FMT_POWERS_OF_10(1), - FMT_POWERS_OF_10(fmt::ULongLong(1000000000)), + FMT_POWERS_OF_10(ULongLong(1000000000)), // Multiply several constants instead of using a single long long constant // to avoid warnings about C++98 not supporting long long. - fmt::ULongLong(1000000000) * fmt::ULongLong(1000000000) * 10 + ULongLong(1000000000) * ULongLong(1000000000) * 10 }; -FMT_FUNC void fmt::internal::report_unknown_type(char code, const char *type) { +FMT_FUNC void internal::report_unknown_type(char code, const char *type) { (void)type; if (std::isprint(static_cast(code))) { - FMT_THROW(fmt::FormatError( - fmt::format("unknown format code '{}' for {}", code, type))); + FMT_THROW(FormatError( + format("unknown format code '{}' for {}", code, type))); } - FMT_THROW(fmt::FormatError( - fmt::format("unknown format code '\\x{:02x}' for {}", + FMT_THROW(FormatError( + format("unknown format code '\\x{:02x}' for {}", static_cast(code), type))); } #if FMT_USE_WINDOWS_H -FMT_FUNC fmt::internal::UTF8ToUTF16::UTF8ToUTF16(fmt::StringRef s) { +FMT_FUNC internal::UTF8ToUTF16::UTF8ToUTF16(StringRef s) { static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16"; if (s.size() > INT_MAX) FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG)); int s_size = static_cast(s.size()); int length = MultiByteToWideChar( - CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0); + CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, FMT_NULL, 0); if (length == 0) FMT_THROW(WindowsError(GetLastError(), ERROR_MSG)); buffer_.resize(length + 1); @@ -536,30 +314,31 @@ FMT_FUNC fmt::internal::UTF8ToUTF16::UTF8ToUTF16(fmt::StringRef s) { buffer_[length] = 0; } -FMT_FUNC fmt::internal::UTF16ToUTF8::UTF16ToUTF8(fmt::WStringRef s) { +FMT_FUNC internal::UTF16ToUTF8::UTF16ToUTF8(WStringRef s) { if (int error_code = convert(s)) { FMT_THROW(WindowsError(error_code, "cannot convert string from UTF-16 to UTF-8")); } } -FMT_FUNC int fmt::internal::UTF16ToUTF8::convert(fmt::WStringRef s) { +FMT_FUNC int internal::UTF16ToUTF8::convert(WStringRef s) { if (s.size() > INT_MAX) return ERROR_INVALID_PARAMETER; int s_size = static_cast(s.size()); - int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0); + int length = WideCharToMultiByte( + CP_UTF8, 0, s.data(), s_size, FMT_NULL, 0, FMT_NULL, FMT_NULL); if (length == 0) return GetLastError(); buffer_.resize(length + 1); length = WideCharToMultiByte( - CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0); + CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, FMT_NULL, FMT_NULL); if (length == 0) return GetLastError(); buffer_[length] = 0; return 0; } -FMT_FUNC void fmt::WindowsError::init( +FMT_FUNC void WindowsError::init( int err_code, CStringRef format_str, ArgList args) { error_code_ = err_code; MemoryWriter w; @@ -568,17 +347,17 @@ FMT_FUNC void fmt::WindowsError::init( base = std::runtime_error(w.str()); } -FMT_FUNC void fmt::internal::format_windows_error( - fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT { +FMT_FUNC void internal::format_windows_error( + Writer &out, int error_code, StringRef message) FMT_NOEXCEPT { FMT_TRY { MemoryBuffer buffer; buffer.resize(INLINE_BUFFER_SIZE); for (;;) { wchar_t *system_message = &buffer[0]; - int result = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, - 0, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), - system_message, static_cast(buffer.size()), 0); + int result = FormatMessageW( + FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + FMT_NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + system_message, static_cast(buffer.size()), FMT_NULL); if (result != 0) { UTF16ToUTF8 utf8_message; if (utf8_message.convert(system_message) == ERROR_SUCCESS) { @@ -597,12 +376,11 @@ FMT_FUNC void fmt::internal::format_windows_error( #endif // FMT_USE_WINDOWS_H -FMT_FUNC void fmt::internal::format_system_error( - fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT { +FMT_FUNC void format_system_error( + Writer &out, int error_code, StringRef message) FMT_NOEXCEPT { FMT_TRY { - MemoryBuffer buffer; - buffer.resize(INLINE_BUFFER_SIZE); + internal::MemoryBuffer buffer; + buffer.resize(internal::INLINE_BUFFER_SIZE); for (;;) { char *system_message = &buffer[0]; int result = safe_strerror(error_code, system_message, buffer.size()); @@ -619,11 +397,11 @@ FMT_FUNC void fmt::internal::format_system_error( } template -void fmt::internal::ArgMap::init(const ArgList &args) { +void internal::ArgMap::init(const ArgList &args) { if (!map_.empty()) return; typedef internal::NamedArg NamedArg; - const NamedArg *named_arg = 0; + const NamedArg *named_arg = FMT_NULL; bool use_values = args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE; if (use_values) { @@ -664,18 +442,18 @@ void fmt::internal::ArgMap::init(const ArgList &args) { } template -void fmt::internal::FixedBuffer::grow(std::size_t) { +void internal::FixedBuffer::grow(std::size_t) { FMT_THROW(std::runtime_error("buffer overflow")); } -FMT_FUNC Arg fmt::internal::FormatterBase::do_get_arg( +FMT_FUNC internal::Arg internal::FormatterBase::do_get_arg( unsigned arg_index, const char *&error) { - Arg arg = args_[arg_index]; + internal::Arg arg = args_[arg_index]; switch (arg.type) { - case Arg::NONE: + case internal::Arg::NONE: error = "argument index out of range"; break; - case Arg::NAMED_ARG: + case internal::Arg::NAMED_ARG: arg = *static_cast(arg.pointer); break; default: @@ -684,203 +462,31 @@ FMT_FUNC Arg fmt::internal::FormatterBase::do_get_arg( return arg; } -template -void fmt::internal::PrintfFormatter::parse_flags( - FormatSpec &spec, const Char *&s) { - for (;;) { - switch (*s++) { - case '-': - spec.align_ = ALIGN_LEFT; - break; - case '+': - spec.flags_ |= SIGN_FLAG | PLUS_FLAG; - break; - case '0': - spec.fill_ = '0'; - break; - case ' ': - spec.flags_ |= SIGN_FLAG; - break; - case '#': - spec.flags_ |= HASH_FLAG; - break; - default: - --s; - return; - } - } -} - -template -Arg fmt::internal::PrintfFormatter::get_arg( - const Char *s, unsigned arg_index) { - (void)s; - const char *error = 0; - Arg arg = arg_index == UINT_MAX ? - next_arg(error) : FormatterBase::get_arg(arg_index - 1, error); - if (error) - FMT_THROW(FormatError(!*s ? "invalid format string" : error)); - return arg; -} - -template -unsigned fmt::internal::PrintfFormatter::parse_header( - const Char *&s, FormatSpec &spec) { - unsigned arg_index = UINT_MAX; - Char c = *s; - if (c >= '0' && c <= '9') { - // Parse an argument index (if followed by '$') or a width possibly - // preceded with '0' flag(s). - unsigned value = parse_nonnegative_int(s); - if (*s == '$') { // value is an argument index - ++s; - arg_index = value; - } else { - if (c == '0') - spec.fill_ = '0'; - if (value != 0) { - // Nonzero value means that we parsed width and don't need to - // parse it or flags again, so return now. - spec.width_ = value; - return arg_index; - } - } - } - parse_flags(spec, s); - // Parse width. - if (*s >= '0' && *s <= '9') { - spec.width_ = parse_nonnegative_int(s); - } else if (*s == '*') { - ++s; - spec.width_ = WidthHandler(spec).visit(get_arg(s)); - } - return arg_index; -} - -template -void fmt::internal::PrintfFormatter::format( - BasicWriter &writer, BasicCStringRef format_str) { - const Char *start = format_str.c_str(); - const Char *s = start; - while (*s) { - Char c = *s++; - if (c != '%') continue; - if (*s == c) { - write(writer, start, s); - start = ++s; - continue; - } - write(writer, start, s - 1); - - FormatSpec spec; - spec.align_ = ALIGN_RIGHT; - - // Parse argument index, flags and width. - unsigned arg_index = parse_header(s, spec); - - // Parse precision. - if (*s == '.') { - ++s; - if ('0' <= *s && *s <= '9') { - spec.precision_ = static_cast(parse_nonnegative_int(s)); - } else if (*s == '*') { - ++s; - spec.precision_ = PrecisionHandler().visit(get_arg(s)); - } - } - - Arg arg = get_arg(s, arg_index); - if (spec.flag(HASH_FLAG) && IsZeroInt().visit(arg)) - spec.flags_ &= ~to_unsigned(HASH_FLAG); - if (spec.fill_ == '0') { - if (arg.type <= Arg::LAST_NUMERIC_TYPE) - spec.align_ = ALIGN_NUMERIC; - else - spec.fill_ = ' '; // Ignore '0' flag for non-numeric types. - } - - // Parse length and convert the argument to the required type. - switch (*s++) { - case 'h': - if (*s == 'h') - ArgConverter(arg, *++s).visit(arg); - else - ArgConverter(arg, *s).visit(arg); - break; - case 'l': - if (*s == 'l') - ArgConverter(arg, *++s).visit(arg); - else - ArgConverter(arg, *s).visit(arg); - break; - case 'j': - ArgConverter(arg, *s).visit(arg); - break; - case 'z': - ArgConverter(arg, *s).visit(arg); - break; - case 't': - ArgConverter(arg, *s).visit(arg); - break; - case 'L': - // printf produces garbage when 'L' is omitted for long double, no - // need to do the same. - break; - default: - --s; - ArgConverter(arg, *s).visit(arg); - } - - // Parse type. - if (!*s) - FMT_THROW(FormatError("invalid format string")); - spec.type_ = static_cast(*s++); - if (arg.type <= Arg::LAST_INTEGER_TYPE) { - // Normalize type. - switch (spec.type_) { - case 'i': case 'u': - spec.type_ = 'd'; - break; - case 'c': - // TODO: handle wchar_t - CharConverter(arg).visit(arg); - break; - } - } - - start = s; - - // Format argument. - internal::PrintfArgFormatter(writer, spec).visit(arg); - } - write(writer, start, s); -} - -FMT_FUNC void fmt::report_system_error( +FMT_FUNC void report_system_error( int error_code, fmt::StringRef message) FMT_NOEXCEPT { // 'fmt::' is for bcc32. - fmt::report_error(internal::format_system_error, error_code, message); + report_error(format_system_error, error_code, message); } #if FMT_USE_WINDOWS_H -FMT_FUNC void fmt::report_windows_error( +FMT_FUNC void report_windows_error( int error_code, fmt::StringRef message) FMT_NOEXCEPT { // 'fmt::' is for bcc32. - fmt::report_error(internal::format_windows_error, error_code, message); + report_error(internal::format_windows_error, error_code, message); } #endif -FMT_FUNC void fmt::print(std::FILE *f, CStringRef format_str, ArgList args) { +FMT_FUNC void print(std::FILE *f, CStringRef format_str, ArgList args) { MemoryWriter w; w.write(format_str, args); std::fwrite(w.data(), 1, w.size(), f); } -FMT_FUNC void fmt::print(CStringRef format_str, ArgList args) { +FMT_FUNC void print(CStringRef format_str, ArgList args) { print(stdout, format_str, args); } -FMT_FUNC void fmt::print_colored(Color c, CStringRef format, ArgList args) { +FMT_FUNC void print_colored(Color c, CStringRef format, ArgList args) { char escape[] = "\x1b[30m"; escape[3] = static_cast('0' + c); std::fputs(escape, stdout); @@ -888,53 +494,42 @@ FMT_FUNC void fmt::print_colored(Color c, CStringRef format, ArgList args) { std::fputs(RESET_COLOR, stdout); } -FMT_FUNC int fmt::fprintf(std::FILE *f, CStringRef format, ArgList args) { - MemoryWriter w; - printf(w, format, args); - std::size_t size = w.size(); - return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast(size); -} - #ifndef FMT_HEADER_ONLY -template struct fmt::internal::BasicData; +template struct internal::BasicData; // Explicit instantiations for char. -template void fmt::internal::FixedBuffer::grow(std::size_t); - -template void fmt::internal::ArgMap::init(const fmt::ArgList &args); +template void internal::FixedBuffer::grow(std::size_t); -template void fmt::internal::PrintfFormatter::format( - BasicWriter &writer, CStringRef format); +template void internal::ArgMap::init(const ArgList &args); -template int fmt::internal::CharTraits::format_float( +template FMT_API int internal::CharTraits::format_float( char *buffer, std::size_t size, const char *format, unsigned width, int precision, double value); -template int fmt::internal::CharTraits::format_float( +template FMT_API int internal::CharTraits::format_float( char *buffer, std::size_t size, const char *format, unsigned width, int precision, long double value); // Explicit instantiations for wchar_t. -template void fmt::internal::FixedBuffer::grow(std::size_t); +template void internal::FixedBuffer::grow(std::size_t); -template void fmt::internal::ArgMap::init(const fmt::ArgList &args); +template void internal::ArgMap::init(const ArgList &args); -template void fmt::internal::PrintfFormatter::format( - BasicWriter &writer, WCStringRef format); - -template int fmt::internal::CharTraits::format_float( +template FMT_API int internal::CharTraits::format_float( wchar_t *buffer, std::size_t size, const wchar_t *format, unsigned width, int precision, double value); -template int fmt::internal::CharTraits::format_float( +template FMT_API int internal::CharTraits::format_float( wchar_t *buffer, std::size_t size, const wchar_t *format, unsigned width, int precision, long double value); #endif // FMT_HEADER_ONLY +} // namespace fmt + #ifdef _MSC_VER # pragma warning(pop) #endif diff --git a/include/spdlog/fmt/bundled/format.h b/include/spdlog/fmt/bundled/format.h index 64c949bea..6ee9d2a21 100644 --- a/include/spdlog/fmt/bundled/format.h +++ b/include/spdlog/fmt/bundled/format.h @@ -38,7 +38,10 @@ #include #include #include -#include +#include // for std::pair + +// The fmt library version in the form major * 10000 + minor * 100 + patch. +#define FMT_VERSION 40000 #ifdef _SECURE_SCL # define FMT_SECURE_SCL _SECURE_SCL @@ -104,6 +107,7 @@ typedef __int64 intmax_t; #endif #if defined(__clang__) && !defined(FMT_ICC_VERSION) +# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) # pragma clang diagnostic push # pragma clang diagnostic ignored "-Wdocumentation-unknown-command" # pragma clang diagnostic ignored "-Wpadded" @@ -152,10 +156,6 @@ typedef __int64 intmax_t; # endif #endif -#if FMT_USE_RVALUE_REFERENCES -# include // for std::move -#endif - // Check if exceptions are disabled. #if defined(__GNUC__) && !defined(__EXCEPTIONS) # define FMT_EXCEPTIONS 0 @@ -180,22 +180,32 @@ typedef __int64 intmax_t; # define FMT_USE_NOEXCEPT 0 #endif -#ifndef FMT_NOEXCEPT -# if FMT_EXCEPTIONS -# if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ +#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ FMT_MSC_VER >= 1900 -# define FMT_NOEXCEPT noexcept -# else -# define FMT_NOEXCEPT throw() -# endif +# define FMT_DETECTED_NOEXCEPT noexcept +#else +# define FMT_DETECTED_NOEXCEPT throw() +#endif + +#ifndef FMT_NOEXCEPT +# if FMT_EXCEPTIONS +# define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT # else # define FMT_NOEXCEPT # endif #endif +// This is needed because GCC still uses throw() in its headers when exceptions +// are disabled. +#if FMT_GCC_VERSION +# define FMT_DTOR_NOEXCEPT FMT_DETECTED_NOEXCEPT +#else +# define FMT_DTOR_NOEXCEPT FMT_NOEXCEPT +#endif + #ifndef FMT_OVERRIDE -# if FMT_USE_OVERRIDE || FMT_HAS_FEATURE(cxx_override) || \ +# if (defined(FMT_USE_OVERRIDE) && FMT_USE_OVERRIDE) || FMT_HAS_FEATURE(cxx_override) || \ (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ FMT_MSC_VER >= 1900 # define FMT_OVERRIDE override @@ -204,6 +214,15 @@ typedef __int64 intmax_t; # endif #endif +#ifndef FMT_NULL +# if FMT_HAS_FEATURE(cxx_nullptr) || \ + (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ + FMT_MSC_VER >= 1600 +# define FMT_NULL nullptr +# else +# define FMT_NULL NULL +# endif +#endif // A macro to disallow the copy constructor and operator= functions // This should be used in the private: declarations for a class @@ -224,6 +243,20 @@ typedef __int64 intmax_t; TypeName& operator=(const TypeName&) #endif +#ifndef FMT_USE_DEFAULTED_FUNCTIONS +# define FMT_USE_DEFAULTED_FUNCTIONS 0 +#endif + +#ifndef FMT_DEFAULTED_COPY_CTOR +# if FMT_USE_DEFAULTED_FUNCTIONS || FMT_HAS_FEATURE(cxx_defaulted_functions) || \ + (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1800 +# define FMT_DEFAULTED_COPY_CTOR(TypeName) \ + TypeName(const TypeName&) = default; +# else +# define FMT_DEFAULTED_COPY_CTOR(TypeName) +# endif +#endif + #ifndef FMT_USE_USER_DEFINED_LITERALS // All compilers which support UDLs also support variadic templates. This // makes the fmt::literals implementation easier. However, an explicit check @@ -236,41 +269,53 @@ typedef __int64 intmax_t; (!defined(FMT_ICC_VERSION) || FMT_ICC_VERSION >= 1500) #endif +#ifndef FMT_USE_EXTERN_TEMPLATES +# define FMT_USE_EXTERN_TEMPLATES \ + (FMT_CLANG_VERSION >= 209 || (FMT_GCC_VERSION >= 303 && FMT_HAS_GXX_CXX11)) +#endif + +#ifdef FMT_HEADER_ONLY +// If header only do not use extern templates. +# undef FMT_USE_EXTERN_TEMPLATES +# define FMT_USE_EXTERN_TEMPLATES 0 +#endif + #ifndef FMT_ASSERT # define FMT_ASSERT(condition, message) assert((condition) && message) #endif -#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz) -# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) -#endif +// __builtin_clz is broken in clang with Microsoft CodeGen: +// https://github.com/fmtlib/fmt/issues/519 +#ifndef _MSC_VER +# if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz) +# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) +# endif -#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll) -# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) +# if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll) +# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) +# endif #endif // Some compilers masquerade as both MSVC and GCC-likes or // otherwise support __builtin_clz and __builtin_clzll, so // only define FMT_BUILTIN_CLZ using the MSVC intrinsics // if the clz and clzll builtins are not available. -#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) +#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && !defined(_MANAGED) # include // _BitScanReverse, _BitScanReverse64 -namespace fmt -{ -namespace internal -{ +namespace fmt { +namespace internal { # pragma intrinsic(_BitScanReverse) -inline uint32_t clz(uint32_t x) -{ - unsigned long r = 0; - _BitScanReverse(&r, x); - - assert(x != 0); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. +inline uint32_t clz(uint32_t x) { + unsigned long r = 0; + _BitScanReverse(&r, x); + + assert(x != 0); + // Static analysis complains about using uninitialized data + // "r", but the only way that can happen is if "x" is 0, + // which the callers guarantee to not happen. # pragma warning(suppress: 6102) - return 31 - r; + return 31 - r; } # define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n) @@ -278,140 +323,106 @@ inline uint32_t clz(uint32_t x) # pragma intrinsic(_BitScanReverse64) # endif -inline uint32_t clzll(uint64_t x) -{ - unsigned long r = 0; +inline uint32_t clzll(uint64_t x) { + unsigned long r = 0; # ifdef _WIN64 - _BitScanReverse64(&r, x); + _BitScanReverse64(&r, x); # else - // Scan the high 32 bits. - if (_BitScanReverse(&r, static_cast(x >> 32))) - return 63 - (r + 32); + // Scan the high 32 bits. + if (_BitScanReverse(&r, static_cast(x >> 32))) + return 63 - (r + 32); - // Scan the low 32 bits. - _BitScanReverse(&r, static_cast(x)); + // Scan the low 32 bits. + _BitScanReverse(&r, static_cast(x)); # endif - assert(x != 0); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. + assert(x != 0); + // Static analysis complains about using uninitialized data + // "r", but the only way that can happen is if "x" is 0, + // which the callers guarantee to not happen. # pragma warning(suppress: 6102) - return 63 - r; + return 63 - r; } # define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n) } } #endif -namespace fmt -{ -namespace internal -{ -struct DummyInt -{ - int data[2]; - operator int() const - { - return 0; - } +namespace fmt { +namespace internal { +struct DummyInt { + int data[2]; + operator int() const { return 0; } }; typedef std::numeric_limits FPUtil; // Dummy implementations of system functions such as signbit and ecvt called // if the latter are not available. -inline DummyInt signbit(...) -{ - return DummyInt(); -} -inline DummyInt _ecvt_s(...) -{ - return DummyInt(); -} -inline DummyInt isinf(...) -{ - return DummyInt(); -} -inline DummyInt _finite(...) -{ - return DummyInt(); -} -inline DummyInt isnan(...) -{ - return DummyInt(); -} -inline DummyInt _isnan(...) -{ - return DummyInt(); -} +inline DummyInt signbit(...) { return DummyInt(); } +inline DummyInt _ecvt_s(...) { return DummyInt(); } +inline DummyInt isinf(...) { return DummyInt(); } +inline DummyInt _finite(...) { return DummyInt(); } +inline DummyInt isnan(...) { return DummyInt(); } +inline DummyInt _isnan(...) { return DummyInt(); } // A helper function to suppress bogus "conditional expression is constant" // warnings. template -inline T const_check(T value) -{ - return value; -} +inline T const_check(T value) { return value; } } } // namespace fmt -namespace std -{ +namespace std { // Standard permits specialization of std::numeric_limits. This specialization // is used to resolve ambiguity between isinf and std::isinf in glibc: // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891 // and the same for isnan and signbit. template <> class numeric_limits : - public std::numeric_limits -{ -public: - // Portable version of isinf. - template - static bool isinfinity(T x) - { - using namespace fmt::internal; - // The resolution "priority" is: - // isinf macro > std::isinf > ::isinf > fmt::internal::isinf - if (const_check(sizeof(isinf(x)) == sizeof(bool) || - sizeof(isinf(x)) == sizeof(int))) - { - return isinf(x) != 0; - } - return !_finite(static_cast(x)); - } + public std::numeric_limits { + public: + // Portable version of isinf. + template + static bool isinfinity(T x) { + using namespace fmt::internal; + // The resolution "priority" is: + // isinf macro > std::isinf > ::isinf > fmt::internal::isinf + if (const_check(sizeof(isinf(x)) == sizeof(bool) || + sizeof(isinf(x)) == sizeof(int))) { + return isinf(x) != 0; + } + return !_finite(static_cast(x)); + } - // Portable version of isnan. - template - static bool isnotanumber(T x) - { - using namespace fmt::internal; - if (const_check(sizeof(isnan(x)) == sizeof(bool) || - sizeof(isnan(x)) == sizeof(int))) - { - return isnan(x) != 0; - } - return _isnan(static_cast(x)) != 0; + // Portable version of isnan. + template + static bool isnotanumber(T x) { + using namespace fmt::internal; + if (const_check(sizeof(isnan(x)) == sizeof(bool) || + sizeof(isnan(x)) == sizeof(int))) { + return isnan(x) != 0; } + return _isnan(static_cast(x)) != 0; + } - // Portable version of signbit. - static bool isnegative(double x) - { - using namespace fmt::internal; - if (const_check(sizeof(signbit(x)) == sizeof(int))) - return signbit(x) != 0; - if (x < 0) return true; - if (!isnotanumber(x)) return false; - int dec = 0, sign = 0; - char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail. - _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign); - return sign != 0; - } + // Portable version of signbit. + static bool isnegative(double x) { + using namespace fmt::internal; + if (const_check(sizeof(signbit(x)) == sizeof(bool) || + sizeof(signbit(x)) == sizeof(int))) { + return signbit(x) != 0; + } + if (x < 0) return true; + if (!isnotanumber(x)) return false; + int dec = 0, sign = 0; + char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail. + _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign); + return sign != 0; + } }; } // namespace std -namespace fmt -{ +namespace fmt { // Fix the warning about long long on older versions of GCC // that don't support the diagnostic pragma. @@ -431,13 +442,19 @@ typedef BasicWriter WWriter; template class ArgFormatter; +struct FormatSpec; + +template +class BasicPrintfArgFormatter; + template > class BasicFormatter; /** \rst - A string reference. It can be constructed from a C string or ``std::string``. + A string reference. It can be constructed from a C string or + ``std::basic_string``. You can use one of the following typedefs for common character types: @@ -460,89 +477,76 @@ class BasicFormatter; \endrst */ template -class BasicStringRef -{ -private: - const Char *data_; - std::size_t size_; - -public: - /** Constructs a string reference object from a C string and a size. */ - BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {} - - /** - \rst - Constructs a string reference object from a C string computing - the size with ``std::char_traits::length``. - \endrst - */ - BasicStringRef(const Char *s) - : data_(s), size_(std::char_traits::length(s)) {} - - /** - \rst - Constructs a string reference from an ``std::string`` object. - \endrst - */ - BasicStringRef(const std::basic_string &s) - : data_(s.c_str()), size_(s.size()) {} - - /** - \rst - Converts a string reference to an ``std::string`` object. - \endrst - */ - std::basic_string to_string() const - { - return std::basic_string(data_, size_); - } +class BasicStringRef { + private: + const Char *data_; + std::size_t size_; + + public: + /** Constructs a string reference object from a C string and a size. */ + BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {} + + /** + \rst + Constructs a string reference object from a C string computing + the size with ``std::char_traits::length``. + \endrst + */ + BasicStringRef(const Char *s) + : data_(s), size_(std::char_traits::length(s)) {} + + /** + \rst + Constructs a string reference from a ``std::basic_string`` object. + \endrst + */ + template + BasicStringRef( + const std::basic_string, Allocator> &s) + : data_(s.c_str()), size_(s.size()) {} + + /** + \rst + Converts a string reference to an ``std::string`` object. + \endrst + */ + std::basic_string to_string() const { + return std::basic_string(data_, size_); + } - /** Returns a pointer to the string data. */ - const Char *data() const - { - return data_; - } + /** Returns a pointer to the string data. */ + const Char *data() const { return data_; } - /** Returns the string size. */ - std::size_t size() const - { - return size_; - } + /** Returns the string size. */ + std::size_t size() const { return size_; } - // Lexicographically compare this string reference to other. - int compare(BasicStringRef other) const - { - std::size_t size = size_ < other.size_ ? size_ : other.size_; - int result = std::char_traits::compare(data_, other.data_, size); - if (result == 0) - result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); - return result; - } + // Lexicographically compare this string reference to other. + int compare(BasicStringRef other) const { + std::size_t size = size_ < other.size_ ? size_ : other.size_; + int result = std::char_traits::compare(data_, other.data_, size); + if (result == 0) + result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); + return result; + } - friend bool operator==(BasicStringRef lhs, BasicStringRef rhs) - { - return lhs.compare(rhs) == 0; - } - friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs) - { - return lhs.compare(rhs) != 0; - } - friend bool operator<(BasicStringRef lhs, BasicStringRef rhs) - { - return lhs.compare(rhs) < 0; - } - friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs) - { - return lhs.compare(rhs) <= 0; - } - friend bool operator>(BasicStringRef lhs, BasicStringRef rhs) - { - return lhs.compare(rhs) > 0; - } - friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs) - { - return lhs.compare(rhs) >= 0; - } + friend bool operator==(BasicStringRef lhs, BasicStringRef rhs) { + return lhs.compare(rhs) == 0; + } + friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs) { + return lhs.compare(rhs) != 0; + } + friend bool operator<(BasicStringRef lhs, BasicStringRef rhs) { + return lhs.compare(rhs) < 0; + } + friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs) { + return lhs.compare(rhs) <= 0; + } + friend bool operator>(BasicStringRef lhs, BasicStringRef rhs) { + return lhs.compare(rhs) > 0; + } + friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs) { + return lhs.compare(rhs) >= 0; + } }; typedef BasicStringRef StringRef; @@ -551,7 +555,7 @@ typedef BasicStringRef WStringRef; /** \rst A reference to a null terminated string. It can be constructed from a C - string or ``std::string``. + string or ``std::basic_string``. You can use one of the following typedefs for common character types: @@ -574,50 +578,45 @@ typedef BasicStringRef WStringRef; \endrst */ template -class BasicCStringRef -{ -private: - const Char *data_; +class BasicCStringRef { + private: + const Char *data_; -public: - /** Constructs a string reference object from a C string. */ - BasicCStringRef(const Char *s) : data_(s) {} - - /** - \rst - Constructs a string reference from an ``std::string`` object. - \endrst - */ - BasicCStringRef(const std::basic_string &s) : data_(s.c_str()) {} - - /** Returns the pointer to a C string. */ - const Char *c_str() const - { - return data_; - } + public: + /** Constructs a string reference object from a C string. */ + BasicCStringRef(const Char *s) : data_(s) {} + + /** + \rst + Constructs a string reference from a ``std::basic_string`` object. + \endrst + */ + template + BasicCStringRef( + const std::basic_string, Allocator> &s) + : data_(s.c_str()) {} + + /** Returns the pointer to a C string. */ + const Char *c_str() const { return data_; } }; typedef BasicCStringRef CStringRef; typedef BasicCStringRef WCStringRef; /** A formatting error such as invalid format string. */ -class FormatError : public std::runtime_error -{ -public: - explicit FormatError(CStringRef message) - : std::runtime_error(message.c_str()) {} - ~FormatError() throw(); +class FormatError : public std::runtime_error { + public: + explicit FormatError(CStringRef message) + : std::runtime_error(message.c_str()) {} + FormatError(const FormatError &ferr) : std::runtime_error(ferr) {} + FMT_API ~FormatError() FMT_DTOR_NOEXCEPT; }; -namespace internal -{ +namespace internal { // MakeUnsigned::Type gives an unsigned type corresponding to integer type T. template -struct MakeUnsigned -{ - typedef T Type; -}; +struct MakeUnsigned { typedef T Type; }; #define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \ template <> \ @@ -632,10 +631,9 @@ FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong); // Casts nonnegative integer to unsigned. template -inline typename MakeUnsigned::Type to_unsigned(Int value) -{ - FMT_ASSERT(value >= 0, "negative value"); - return static_cast::Type>(value); +inline typename MakeUnsigned::Type to_unsigned(Int value) { + FMT_ASSERT(value >= 0, "negative value"); + return static_cast::Type>(value); } // The number of characters to store in the MemoryBuffer object itself @@ -645,16 +643,12 @@ enum { INLINE_BUFFER_SIZE = 500 }; #if FMT_SECURE_SCL // Use checked iterator to avoid warnings on MSVC. template -inline stdext::checked_array_iterator make_ptr(T *ptr, std::size_t size) -{ - return stdext::checked_array_iterator(ptr, size); +inline stdext::checked_array_iterator make_ptr(T *ptr, std::size_t size) { + return stdext::checked_array_iterator(ptr, size); } #else template -inline T *make_ptr(T *ptr, std::size_t) -{ - return ptr; -} +inline T *make_ptr(T *ptr, std::size_t) { return ptr; } #endif } // namespace internal @@ -664,307 +658,261 @@ inline T *make_ptr(T *ptr, std::size_t) \endrst */ template -class Buffer -{ -private: - FMT_DISALLOW_COPY_AND_ASSIGN(Buffer); - -protected: - T *ptr_; - std::size_t size_; - std::size_t capacity_; - - Buffer(T *ptr = 0, std::size_t capacity = 0) - : ptr_(ptr), size_(0), capacity_(capacity) {} - - /** - \rst - Increases the buffer capacity to hold at least *size* elements updating - ``ptr_`` and ``capacity_``. - \endrst - */ - virtual void grow(std::size_t size) = 0; - -public: - virtual ~Buffer() {} - - /** Returns the size of this buffer. */ - std::size_t size() const - { - return size_; - } - - /** Returns the capacity of this buffer. */ - std::size_t capacity() const - { - return capacity_; - } - - /** - Resizes the buffer. If T is a POD type new elements may not be initialized. - */ - void resize(std::size_t new_size) - { - if (new_size > capacity_) - grow(new_size); - size_ = new_size; - } +class Buffer { + private: + FMT_DISALLOW_COPY_AND_ASSIGN(Buffer); + + protected: + T *ptr_; + std::size_t size_; + std::size_t capacity_; + + Buffer(T *ptr = FMT_NULL, std::size_t capacity = 0) + : ptr_(ptr), size_(0), capacity_(capacity) {} + + /** + \rst + Increases the buffer capacity to hold at least *size* elements updating + ``ptr_`` and ``capacity_``. + \endrst + */ + virtual void grow(std::size_t size) = 0; + + public: + virtual ~Buffer() {} + + /** Returns the size of this buffer. */ + std::size_t size() const { return size_; } + + /** Returns the capacity of this buffer. */ + std::size_t capacity() const { return capacity_; } + + /** + Resizes the buffer. If T is a POD type new elements may not be initialized. + */ + void resize(std::size_t new_size) { + if (new_size > capacity_) + grow(new_size); + size_ = new_size; + } - /** - \rst - Reserves space to store at least *capacity* elements. - \endrst - */ - void reserve(std::size_t capacity) - { - if (capacity > capacity_) - grow(capacity); - } + /** + \rst + Reserves space to store at least *capacity* elements. + \endrst + */ + void reserve(std::size_t capacity) { + if (capacity > capacity_) + grow(capacity); + } - void clear() FMT_NOEXCEPT { size_ = 0; } + void clear() FMT_NOEXCEPT { size_ = 0; } - void push_back(const T &value) - { - if (size_ == capacity_) - grow(size_ + 1); - ptr_[size_++] = value; - } + void push_back(const T &value) { + if (size_ == capacity_) + grow(size_ + 1); + ptr_[size_++] = value; + } - /** Appends data to the end of the buffer. */ - template - void append(const U *begin, const U *end); + /** Appends data to the end of the buffer. */ + template + void append(const U *begin, const U *end); - T &operator[](std::size_t index) - { - return ptr_[index]; - } - const T &operator[](std::size_t index) const - { - return ptr_[index]; - } + T &operator[](std::size_t index) { return ptr_[index]; } + const T &operator[](std::size_t index) const { return ptr_[index]; } }; template template -void Buffer::append(const U *begin, const U *end) -{ - std::size_t new_size = size_ + internal::to_unsigned(end - begin); - if (new_size > capacity_) - grow(new_size); - std::uninitialized_copy(begin, end, - internal::make_ptr(ptr_, capacity_) + size_); - size_ = new_size; +void Buffer::append(const U *begin, const U *end) { + FMT_ASSERT(end >= begin, "negative value"); + std::size_t new_size = size_ + (end - begin); + if (new_size > capacity_) + grow(new_size); + std::uninitialized_copy(begin, end, + internal::make_ptr(ptr_, capacity_) + size_); + size_ = new_size; } -namespace internal -{ +namespace internal { // A memory buffer for trivially copyable/constructible types with the first // SIZE elements stored in the object itself. template > -class MemoryBuffer : private Allocator, public Buffer -{ -private: - T data_[SIZE]; - - // Deallocate memory allocated by the buffer. - void deallocate() - { - if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_); - } +class MemoryBuffer : private Allocator, public Buffer { + private: + T data_[SIZE]; -protected: - void grow(std::size_t size) FMT_OVERRIDE; + // Deallocate memory allocated by the buffer. + void deallocate() { + if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_); + } -public: - explicit MemoryBuffer(const Allocator &alloc = Allocator()) - : Allocator(alloc), Buffer(data_, SIZE) {} - ~MemoryBuffer() - { - deallocate(); - } + protected: + void grow(std::size_t size) FMT_OVERRIDE; + + public: + explicit MemoryBuffer(const Allocator &alloc = Allocator()) + : Allocator(alloc), Buffer(data_, SIZE) {} + ~MemoryBuffer() { deallocate(); } #if FMT_USE_RVALUE_REFERENCES -private: - // Move data from other to this buffer. - void move(MemoryBuffer &other) - { - Allocator &this_alloc = *this, &other_alloc = other; - this_alloc = std::move(other_alloc); - this->size_ = other.size_; - this->capacity_ = other.capacity_; - if (other.ptr_ == other.data_) - { - this->ptr_ = data_; - std::uninitialized_copy(other.data_, other.data_ + this->size_, - make_ptr(data_, this->capacity_)); - } - else - { - this->ptr_ = other.ptr_; - // Set pointer to the inline array so that delete is not called - // when deallocating. - other.ptr_ = other.data_; - } + private: + // Move data from other to this buffer. + void move(MemoryBuffer &other) { + Allocator &this_alloc = *this, &other_alloc = other; + this_alloc = std::move(other_alloc); + this->size_ = other.size_; + this->capacity_ = other.capacity_; + if (other.ptr_ == other.data_) { + this->ptr_ = data_; + std::uninitialized_copy(other.data_, other.data_ + this->size_, + make_ptr(data_, this->capacity_)); + } else { + this->ptr_ = other.ptr_; + // Set pointer to the inline array so that delete is not called + // when deallocating. + other.ptr_ = other.data_; } + } -public: - MemoryBuffer(MemoryBuffer &&other) - { - move(other); - } + public: + MemoryBuffer(MemoryBuffer &&other) { + move(other); + } - MemoryBuffer &operator=(MemoryBuffer &&other) - { - assert(this != &other); - deallocate(); - move(other); - return *this; - } + MemoryBuffer &operator=(MemoryBuffer &&other) { + assert(this != &other); + deallocate(); + move(other); + return *this; + } #endif - // Returns a copy of the allocator associated with this buffer. - Allocator get_allocator() const - { - return *this; - } + // Returns a copy of the allocator associated with this buffer. + Allocator get_allocator() const { return *this; } }; template -void MemoryBuffer::grow(std::size_t size) -{ - std::size_t new_capacity = this->capacity_ + this->capacity_ / 2; - if (size > new_capacity) - new_capacity = size; - T *new_ptr = this->allocate(new_capacity); - // The following code doesn't throw, so the raw pointer above doesn't leak. - std::uninitialized_copy(this->ptr_, this->ptr_ + this->size_, - make_ptr(new_ptr, new_capacity)); - std::size_t old_capacity = this->capacity_; - T *old_ptr = this->ptr_; - this->capacity_ = new_capacity; - this->ptr_ = new_ptr; - // deallocate may throw (at least in principle), but it doesn't matter since - // the buffer already uses the new storage and will deallocate it in case - // of exception. - if (old_ptr != data_) - Allocator::deallocate(old_ptr, old_capacity); +void MemoryBuffer::grow(std::size_t size) { + std::size_t new_capacity = this->capacity_ + this->capacity_ / 2; + if (size > new_capacity) + new_capacity = size; + T *new_ptr = this->allocate(new_capacity, FMT_NULL); + // The following code doesn't throw, so the raw pointer above doesn't leak. + std::uninitialized_copy(this->ptr_, this->ptr_ + this->size_, + make_ptr(new_ptr, new_capacity)); + std::size_t old_capacity = this->capacity_; + T *old_ptr = this->ptr_; + this->capacity_ = new_capacity; + this->ptr_ = new_ptr; + // deallocate may throw (at least in principle), but it doesn't matter since + // the buffer already uses the new storage and will deallocate it in case + // of exception. + if (old_ptr != data_) + Allocator::deallocate(old_ptr, old_capacity); } // A fixed-size buffer. template -class FixedBuffer : public fmt::Buffer -{ -public: - FixedBuffer(Char *array, std::size_t size) : fmt::Buffer(array, size) {} +class FixedBuffer : public fmt::Buffer { + public: + FixedBuffer(Char *array, std::size_t size) : fmt::Buffer(array, size) {} -protected: - FMT_API void grow(std::size_t size); + protected: + FMT_API void grow(std::size_t size) FMT_OVERRIDE; }; template -class BasicCharTraits -{ -public: +class BasicCharTraits { + public: #if FMT_SECURE_SCL - typedef stdext::checked_array_iterator CharPtr; + typedef stdext::checked_array_iterator CharPtr; #else - typedef Char *CharPtr; + typedef Char *CharPtr; #endif - static Char cast(int value) - { - return static_cast(value); - } + static Char cast(int value) { return static_cast(value); } }; template class CharTraits; template <> -class CharTraits : public BasicCharTraits -{ -private: - // Conversion from wchar_t to char is not allowed. - static char convert(wchar_t); - -public: - static char convert(char value) - { - return value; - } - - // Formats a floating-point number. - template - FMT_API static int format_float(char *buffer, std::size_t size, - const char *format, unsigned width, int precision, T value); -}; +class CharTraits : public BasicCharTraits { + private: + // Conversion from wchar_t to char is not allowed. + static char convert(wchar_t); + + public: + static char convert(char value) { return value; } + + // Formats a floating-point number. + template + FMT_API static int format_float(char *buffer, std::size_t size, + const char *format, unsigned width, int precision, T value); +}; + +#if FMT_USE_EXTERN_TEMPLATES +extern template int CharTraits::format_float + (char *buffer, std::size_t size, + const char* format, unsigned width, int precision, double value); +extern template int CharTraits::format_float + (char *buffer, std::size_t size, + const char* format, unsigned width, int precision, long double value); +#endif template <> -class CharTraits : public BasicCharTraits -{ -public: - static wchar_t convert(char value) - { - return value; - } - static wchar_t convert(wchar_t value) - { - return value; - } - - template - FMT_API static int format_float(wchar_t *buffer, std::size_t size, - const wchar_t *format, unsigned width, int precision, T value); -}; +class CharTraits : public BasicCharTraits { + public: + static wchar_t convert(char value) { return value; } + static wchar_t convert(wchar_t value) { return value; } + + template + FMT_API static int format_float(wchar_t *buffer, std::size_t size, + const wchar_t *format, unsigned width, int precision, T value); +}; + +#if FMT_USE_EXTERN_TEMPLATES +extern template int CharTraits::format_float + (wchar_t *buffer, std::size_t size, + const wchar_t* format, unsigned width, int precision, double value); +extern template int CharTraits::format_float + (wchar_t *buffer, std::size_t size, + const wchar_t* format, unsigned width, int precision, long double value); +#endif // Checks if a number is negative - used to avoid warnings. template -struct SignChecker -{ - template - static bool is_negative(T value) - { - return value < 0; - } +struct SignChecker { + template + static bool is_negative(T value) { return value < 0; } }; template <> -struct SignChecker -{ - template - static bool is_negative(T) - { - return false; - } +struct SignChecker { + template + static bool is_negative(T) { return false; } }; // Returns true if value is negative, false otherwise. // Same as (value < 0) but doesn't produce warnings if T is an unsigned type. template -inline bool is_negative(T value) -{ - return SignChecker::is_signed>::is_negative(value); +inline bool is_negative(T value) { + return SignChecker::is_signed>::is_negative(value); } // Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise. template -struct TypeSelector -{ - typedef uint32_t Type; -}; +struct TypeSelector { typedef uint32_t Type; }; template <> -struct TypeSelector -{ - typedef uint64_t Type; -}; +struct TypeSelector { typedef uint64_t Type; }; template -struct IntTraits -{ - // Smallest of uint32_t and uint64_t that is large enough to represent - // all values of T. - typedef typename +struct IntTraits { + // Smallest of uint32_t and uint64_t that is large enough to represent + // all values of T. + typedef typename TypeSelector::digits <= 32>::Type MainType; }; @@ -973,20 +921,13 @@ FMT_API void report_unknown_type(char code, const char *type); // Static data is placed in this class template to allow header-only // configuration. template -struct FMT_API BasicData -{ - static const uint32_t POWERS_OF_10_32[]; - static const uint64_t POWERS_OF_10_64[]; - static const char DIGITS[]; +struct FMT_API BasicData { + static const uint32_t POWERS_OF_10_32[]; + static const uint64_t POWERS_OF_10_64[]; + static const char DIGITS[]; }; -#ifndef FMT_USE_EXTERN_TEMPLATES -// Clang doesn't have a feature check for extern templates so we check -// for variadic templates which were introduced in the same version. -# define FMT_USE_EXTERN_TEMPLATES (__clang__ && FMT_USE_VARIADIC_TEMPLATES) -#endif - -#if FMT_USE_EXTERN_TEMPLATES && !defined(FMT_HEADER_ONLY) +#if FMT_USE_EXTERN_TEMPLATES extern template struct BasicData; #endif @@ -995,70 +936,63 @@ typedef BasicData<> Data; #ifdef FMT_BUILTIN_CLZLL // Returns the number of decimal digits in n. Leading zeros are not counted // except for n == 0 in which case count_digits returns 1. -inline unsigned count_digits(uint64_t n) -{ - // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 - // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits. - int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12; - return to_unsigned(t) - (n < Data::POWERS_OF_10_64[t]) + 1; +inline unsigned count_digits(uint64_t n) { + // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 + // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits. + int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12; + return to_unsigned(t) - (n < Data::POWERS_OF_10_64[t]) + 1; } #else // Fallback version of count_digits used when __builtin_clz is not available. -inline unsigned count_digits(uint64_t n) -{ - unsigned count = 1; - for (;;) - { - // Integer division is slow so do it for a group of four digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - if (n < 10) return count; - if (n < 100) return count + 1; - if (n < 1000) return count + 2; - if (n < 10000) return count + 3; - n /= 10000u; - count += 4; - } +inline unsigned count_digits(uint64_t n) { + unsigned count = 1; + for (;;) { + // Integer division is slow so do it for a group of four digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + if (n < 10) return count; + if (n < 100) return count + 1; + if (n < 1000) return count + 2; + if (n < 10000) return count + 3; + n /= 10000u; + count += 4; + } } #endif #ifdef FMT_BUILTIN_CLZ // Optional version of count_digits for better performance on 32-bit platforms. -inline unsigned count_digits(uint32_t n) -{ - int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12; - return to_unsigned(t) - (n < Data::POWERS_OF_10_32[t]) + 1; +inline unsigned count_digits(uint32_t n) { + int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12; + return to_unsigned(t) - (n < Data::POWERS_OF_10_32[t]) + 1; } #endif // A functor that doesn't add a thousands separator. -struct NoThousandsSep -{ - template - void operator()(Char *) {} +struct NoThousandsSep { + template + void operator()(Char *) {} }; // A functor that adds a thousands separator. -class ThousandsSep -{ -private: - fmt::StringRef sep_; - - // Index of a decimal digit with the least significant digit having index 0. - unsigned digit_index_; - -public: - explicit ThousandsSep(fmt::StringRef sep) : sep_(sep), digit_index_(0) {} - - template - void operator()(Char *&buffer) - { - if (++digit_index_ % 3 != 0) - return; - buffer -= sep_.size(); - std::uninitialized_copy(sep_.data(), sep_.data() + sep_.size(), - internal::make_ptr(buffer, sep_.size())); - } +class ThousandsSep { + private: + fmt::StringRef sep_; + + // Index of a decimal digit with the least significant digit having index 0. + unsigned digit_index_; + + public: + explicit ThousandsSep(fmt::StringRef sep) : sep_(sep), digit_index_(0) {} + + template + void operator()(Char *&buffer) { + if (++digit_index_ % 3 != 0) + return; + buffer -= sep_.size(); + std::uninitialized_copy(sep_.data(), sep_.data() + sep_.size(), + internal::make_ptr(buffer, sep_.size())); + } }; // Formats a decimal unsigned integer value writing into buffer. @@ -1066,36 +1000,33 @@ class ThousandsSep // add a thousands separator if necessary. template inline void format_decimal(Char *buffer, UInt value, unsigned num_digits, - ThousandsSep thousands_sep) -{ - buffer += num_digits; - while (value >= 100) - { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast((value % 100) * 2); - value /= 100; - *--buffer = Data::DIGITS[index + 1]; - thousands_sep(buffer); - *--buffer = Data::DIGITS[index]; - thousands_sep(buffer); - } - if (value < 10) - { - *--buffer = static_cast('0' + value); - return; - } - unsigned index = static_cast(value * 2); + ThousandsSep thousands_sep) { + buffer += num_digits; + while (value >= 100) { + // Integer division is slow so do it for a group of two digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + unsigned index = static_cast((value % 100) * 2); + value /= 100; *--buffer = Data::DIGITS[index + 1]; thousands_sep(buffer); *--buffer = Data::DIGITS[index]; + thousands_sep(buffer); + } + if (value < 10) { + *--buffer = static_cast('0' + value); + return; + } + unsigned index = static_cast(value * 2); + *--buffer = Data::DIGITS[index + 1]; + thousands_sep(buffer); + *--buffer = Data::DIGITS[index]; } template -inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) -{ - return format_decimal(buffer, value, num_digits, NoThousandsSep()); +inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) { + format_decimal(buffer, value, num_digits, NoThousandsSep()); + return; } #ifndef _WIN32 @@ -1109,126 +1040,93 @@ inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) #if FMT_USE_WINDOWS_H // A converter from UTF-8 to UTF-16. // It is only provided for Windows since other systems support UTF-8 natively. -class UTF8ToUTF16 -{ -private: - MemoryBuffer buffer_; +class UTF8ToUTF16 { + private: + MemoryBuffer buffer_; -public: - FMT_API explicit UTF8ToUTF16(StringRef s); - operator WStringRef() const - { - return WStringRef(&buffer_[0], size()); - } - size_t size() const - { - return buffer_.size() - 1; - } - const wchar_t *c_str() const - { - return &buffer_[0]; - } - std::wstring str() const - { - return std::wstring(&buffer_[0], size()); - } + public: + FMT_API explicit UTF8ToUTF16(StringRef s); + operator WStringRef() const { return WStringRef(&buffer_[0], size()); } + size_t size() const { return buffer_.size() - 1; } + const wchar_t *c_str() const { return &buffer_[0]; } + std::wstring str() const { return std::wstring(&buffer_[0], size()); } }; // A converter from UTF-16 to UTF-8. // It is only provided for Windows since other systems support UTF-8 natively. -class UTF16ToUTF8 -{ -private: - MemoryBuffer buffer_; +class UTF16ToUTF8 { + private: + MemoryBuffer buffer_; -public: - UTF16ToUTF8() {} - FMT_API explicit UTF16ToUTF8(WStringRef s); - operator StringRef() const - { - return StringRef(&buffer_[0], size()); - } - size_t size() const - { - return buffer_.size() - 1; - } - const char *c_str() const - { - return &buffer_[0]; - } - std::string str() const - { - return std::string(&buffer_[0], size()); - } + public: + UTF16ToUTF8() {} + FMT_API explicit UTF16ToUTF8(WStringRef s); + operator StringRef() const { return StringRef(&buffer_[0], size()); } + size_t size() const { return buffer_.size() - 1; } + const char *c_str() const { return &buffer_[0]; } + std::string str() const { return std::string(&buffer_[0], size()); } - // Performs conversion returning a system error code instead of - // throwing exception on conversion error. This method may still throw - // in case of memory allocation error. - FMT_API int convert(WStringRef s); + // Performs conversion returning a system error code instead of + // throwing exception on conversion error. This method may still throw + // in case of memory allocation error. + FMT_API int convert(WStringRef s); }; FMT_API void format_windows_error(fmt::Writer &out, int error_code, fmt::StringRef message) FMT_NOEXCEPT; #endif -FMT_API void format_system_error(fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT; - // A formatting argument value. -struct Value -{ - template - struct StringValue - { - const Char *value; - std::size_t size; - }; - - typedef void (*FormatFunc)( - void *formatter, const void *arg, void *format_str_ptr); - - struct CustomValue - { - const void *value; - FormatFunc format; - }; - - union - { - int int_value; - unsigned uint_value; - LongLong long_long_value; - ULongLong ulong_long_value; - double double_value; - long double long_double_value; - const void *pointer; - StringValue string; - StringValue sstring; - StringValue ustring; - StringValue wstring; - CustomValue custom; - }; - - enum Type - { - NONE, NAMED_ARG, - // Integer types should go first, - INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR, - // followed by floating-point types. - DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE, - CSTRING, STRING, WSTRING, POINTER, CUSTOM - }; +struct Value { + template + struct StringValue { + const Char *value; + std::size_t size; + }; + + typedef void (*FormatFunc)( + void *formatter, const void *arg, void *format_str_ptr); + + struct CustomValue { + const void *value; + FormatFunc format; + }; + + union { + int int_value; + unsigned uint_value; + LongLong long_long_value; + ULongLong ulong_long_value; + double double_value; + long double long_double_value; + const void *pointer; + StringValue string; + StringValue sstring; + StringValue ustring; + StringValue wstring; + CustomValue custom; + }; + + enum Type { + NONE, NAMED_ARG, + // Integer types should go first, + INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR, + // followed by floating-point types. + DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE, + CSTRING, STRING, WSTRING, POINTER, CUSTOM + }; }; // A formatting argument. It is a trivially copyable/constructible type to // allow storage in internal::MemoryBuffer. -struct Arg : Value -{ - Type type; +struct Arg : Value { + Type type; }; template struct NamedArg; +template +struct NamedArgWithType; template struct Null {}; @@ -1236,17 +1134,15 @@ struct Null {}; // A helper class template to enable or disable overloads taking wide // characters and strings in MakeValue. template -struct WCharHelper -{ - typedef Null Supported; - typedef T Unsupported; +struct WCharHelper { + typedef Null Supported; + typedef T Unsupported; }; template -struct WCharHelper -{ - typedef T Supported; - typedef Null Unsupported; +struct WCharHelper { + typedef T Supported; + typedef Null Unsupported; }; typedef char Yes[1]; @@ -1260,32 +1156,29 @@ Yes &convert(fmt::ULongLong); No &convert(...); template -struct ConvertToIntImpl -{ - enum { value = ENABLE_CONVERSION }; +struct ConvertToIntImpl { + enum { value = ENABLE_CONVERSION }; }; template -struct ConvertToIntImpl2 -{ - enum { value = false }; +struct ConvertToIntImpl2 { + enum { value = false }; }; template -struct ConvertToIntImpl2 -{ - enum - { - // Don't convert numeric types. - value = ConvertToIntImpl::is_specialized>::value - }; +struct ConvertToIntImpl2 { + enum { + // Don't convert numeric types. + value = ConvertToIntImpl::is_specialized>::value + }; }; template -struct ConvertToInt -{ - enum { enable_conversion = sizeof(convert(get())) == sizeof(Yes) }; - enum { value = ConvertToIntImpl2::value }; +struct ConvertToInt { + enum { + enable_conversion = sizeof(fmt::internal::convert(get())) == sizeof(Yes) + }; + enum { value = ConvertToIntImpl2::value }; }; #define FMT_DISABLE_CONVERSION_TO_INT(Type) \ @@ -1301,39 +1194,26 @@ template struct EnableIf {}; template -struct EnableIf -{ - typedef T type; -}; +struct EnableIf { typedef T type; }; template -struct Conditional -{ - typedef T type; -}; +struct Conditional { typedef T type; }; template -struct Conditional -{ - typedef F type; -}; +struct Conditional { typedef F type; }; // For bcc32 which doesn't understand ! in template arguments. -template -struct Not -{ - enum { value = 0 }; -}; +template +struct Not { enum { value = 0 }; }; -template<> -struct Not -{ - enum { value = 1 }; -}; +template <> +struct Not { enum { value = 1 }; }; + +template +struct FalseType { enum { value = 0 }; }; -template struct LConvCheck -{ - LConvCheck(int) {} +template struct LConvCheck { + LConvCheck(int) {} }; // Returns the thousands separator for the current locale. @@ -1341,70 +1221,91 @@ template struct LConvCheck // ``lconv`` is stubbed as an empty struct. template inline StringRef thousands_sep( - LConv *lc, LConvCheck = 0) -{ - return lc->thousands_sep; + LConv *lc, LConvCheck = 0) { + return lc->thousands_sep; } -inline fmt::StringRef thousands_sep(...) -{ - return ""; +inline fmt::StringRef thousands_sep(...) { return ""; } + +#define FMT_CONCAT(a, b) a##b + +#if FMT_GCC_VERSION >= 303 +# define FMT_UNUSED __attribute__((unused)) +#else +# define FMT_UNUSED +#endif + +#ifndef FMT_USE_STATIC_ASSERT +# define FMT_USE_STATIC_ASSERT 0 +#endif + +#if FMT_USE_STATIC_ASSERT || FMT_HAS_FEATURE(cxx_static_assert) || \ + (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600 +# define FMT_STATIC_ASSERT(cond, message) static_assert(cond, message) +#else +# define FMT_CONCAT_(a, b) FMT_CONCAT(a, b) +# define FMT_STATIC_ASSERT(cond, message) \ + typedef int FMT_CONCAT_(Assert, __LINE__)[(cond) ? 1 : -1] FMT_UNUSED +#endif + +template +void format_arg(Formatter &, const Char *, const T &) { + FMT_STATIC_ASSERT(FalseType::value, + "Cannot format argument. To enable the use of ostream " + "operator<< include fmt/ostream.h. Otherwise provide " + "an overload of format_arg."); } // Makes an Arg object from any type. template -class MakeValue : public Arg -{ -public: - typedef typename Formatter::Char Char; - -private: - // The following two methods are private to disallow formatting of - // arbitrary pointers. If you want to output a pointer cast it to - // "void *" or "const void *". In particular, this forbids formatting - // of "[const] volatile char *" which is printed as bool by iostreams. - // Do not implement! - template - MakeValue(const T *value); - template - MakeValue(T *value); - - // The following methods are private to disallow formatting of wide - // characters and strings into narrow strings as in - // fmt::format("{}", L"test"); - // To fix this, use a wide format string: fmt::format(L"{}", L"test"). +class MakeValue : public Arg { + public: + typedef typename Formatter::Char Char; + + private: + // The following two methods are private to disallow formatting of + // arbitrary pointers. If you want to output a pointer cast it to + // "void *" or "const void *". In particular, this forbids formatting + // of "[const] volatile char *" which is printed as bool by iostreams. + // Do not implement! + template + MakeValue(const T *value); + template + MakeValue(T *value); + + // The following methods are private to disallow formatting of wide + // characters and strings into narrow strings as in + // fmt::format("{}", L"test"); + // To fix this, use a wide format string: fmt::format(L"{}", L"test"). #if !FMT_MSC_VER || defined(_NATIVE_WCHAR_T_DEFINED) - MakeValue(typename WCharHelper::Unsupported); + MakeValue(typename WCharHelper::Unsupported); #endif - MakeValue(typename WCharHelper::Unsupported); - MakeValue(typename WCharHelper::Unsupported); - MakeValue(typename WCharHelper::Unsupported); - MakeValue(typename WCharHelper::Unsupported); - - void set_string(StringRef str) - { - string.value = str.data(); - string.size = str.size(); - } + MakeValue(typename WCharHelper::Unsupported); + MakeValue(typename WCharHelper::Unsupported); + MakeValue(typename WCharHelper::Unsupported); + MakeValue(typename WCharHelper::Unsupported); + + void set_string(StringRef str) { + string.value = str.data(); + string.size = str.size(); + } - void set_string(WStringRef str) - { - wstring.value = str.data(); - wstring.size = str.size(); - } + void set_string(WStringRef str) { + wstring.value = str.data(); + wstring.size = str.size(); + } - // Formats an argument of a custom type, such as a user-defined class. - template - static void format_custom_arg( - void *formatter, const void *arg, void *format_str_ptr) - { - format(*static_cast(formatter), + // Formats an argument of a custom type, such as a user-defined class. + template + static void format_custom_arg( + void *formatter, const void *arg, void *format_str_ptr) { + format_arg(*static_cast(formatter), *static_cast(format_str_ptr), *static_cast(arg)); - } + } -public: - MakeValue() {} + public: + MakeValue() {} #define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \ MakeValue(Type value) { field = rhs; } \ @@ -1413,72 +1314,64 @@ class MakeValue : public Arg #define FMT_MAKE_VALUE(Type, field, TYPE) \ FMT_MAKE_VALUE_(Type, field, TYPE, value) - FMT_MAKE_VALUE(bool, int_value, BOOL) - FMT_MAKE_VALUE(short, int_value, INT) - FMT_MAKE_VALUE(unsigned short, uint_value, UINT) - FMT_MAKE_VALUE(int, int_value, INT) - FMT_MAKE_VALUE(unsigned, uint_value, UINT) - - MakeValue(long value) - { - // To minimize the number of types we need to deal with, long is - // translated either to int or to long long depending on its size. - if (const_check(sizeof(long) == sizeof(int))) - int_value = static_cast(value); - else - long_long_value = value; - } - static uint64_t type(long) - { - return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG; - } + FMT_MAKE_VALUE(bool, int_value, BOOL) + FMT_MAKE_VALUE(short, int_value, INT) + FMT_MAKE_VALUE(unsigned short, uint_value, UINT) + FMT_MAKE_VALUE(int, int_value, INT) + FMT_MAKE_VALUE(unsigned, uint_value, UINT) + + MakeValue(long value) { + // To minimize the number of types we need to deal with, long is + // translated either to int or to long long depending on its size. + if (const_check(sizeof(long) == sizeof(int))) + int_value = static_cast(value); + else + long_long_value = value; + } + static uint64_t type(long) { + return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG; + } - MakeValue(unsigned long value) - { - if (const_check(sizeof(unsigned long) == sizeof(unsigned))) - uint_value = static_cast(value); - else - ulong_long_value = value; - } - static uint64_t type(unsigned long) - { - return sizeof(unsigned long) == sizeof(unsigned) ? - Arg::UINT : Arg::ULONG_LONG; - } + MakeValue(unsigned long value) { + if (const_check(sizeof(unsigned long) == sizeof(unsigned))) + uint_value = static_cast(value); + else + ulong_long_value = value; + } + static uint64_t type(unsigned long) { + return sizeof(unsigned long) == sizeof(unsigned) ? + Arg::UINT : Arg::ULONG_LONG; + } - FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG) - FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG) - FMT_MAKE_VALUE(float, double_value, DOUBLE) - FMT_MAKE_VALUE(double, double_value, DOUBLE) - FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE) - FMT_MAKE_VALUE(signed char, int_value, INT) - FMT_MAKE_VALUE(unsigned char, uint_value, UINT) - FMT_MAKE_VALUE(char, int_value, CHAR) + FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG) + FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG) + FMT_MAKE_VALUE(float, double_value, DOUBLE) + FMT_MAKE_VALUE(double, double_value, DOUBLE) + FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE) + FMT_MAKE_VALUE(signed char, int_value, INT) + FMT_MAKE_VALUE(unsigned char, uint_value, UINT) + FMT_MAKE_VALUE(char, int_value, CHAR) #if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED) - MakeValue(typename WCharHelper::Supported value) - { - int_value = value; - } - static uint64_t type(wchar_t) - { - return Arg::CHAR; - } + MakeValue(typename WCharHelper::Supported value) { + int_value = value; + } + static uint64_t type(wchar_t) { return Arg::CHAR; } #endif #define FMT_MAKE_STR_VALUE(Type, TYPE) \ MakeValue(Type value) { set_string(value); } \ static uint64_t type(Type) { return Arg::TYPE; } - FMT_MAKE_VALUE(char *, string.value, CSTRING) - FMT_MAKE_VALUE(const char *, string.value, CSTRING) - FMT_MAKE_VALUE(signed char *, sstring.value, CSTRING) - FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING) - FMT_MAKE_VALUE(unsigned char *, ustring.value, CSTRING) - FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING) - FMT_MAKE_STR_VALUE(const std::string &, STRING) - FMT_MAKE_STR_VALUE(StringRef, STRING) - FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str()) + FMT_MAKE_VALUE(char *, string.value, CSTRING) + FMT_MAKE_VALUE(const char *, string.value, CSTRING) + FMT_MAKE_VALUE(signed char *, sstring.value, CSTRING) + FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING) + FMT_MAKE_VALUE(unsigned char *, ustring.value, CSTRING) + FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING) + FMT_MAKE_STR_VALUE(const std::string &, STRING) + FMT_MAKE_STR_VALUE(StringRef, STRING) + FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str()) #define FMT_MAKE_WSTR_VALUE(Type, TYPE) \ MakeValue(typename WCharHelper::Supported value) { \ @@ -1486,161 +1379,149 @@ class MakeValue : public Arg } \ static uint64_t type(Type) { return Arg::TYPE; } - FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING) - FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING) - FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING) - FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING) - - FMT_MAKE_VALUE(void *, pointer, POINTER) - FMT_MAKE_VALUE(const void *, pointer, POINTER) - - template - MakeValue(const T &value, - typename EnableIf::value>::value, int>::type = 0) - { - custom.value = &value; - custom.format = &format_custom_arg; - } + FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING) + FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING) + FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING) + FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING) - template - MakeValue(const T &value, - typename EnableIf::value, int>::type = 0) - { - int_value = value; - } + FMT_MAKE_VALUE(void *, pointer, POINTER) + FMT_MAKE_VALUE(const void *, pointer, POINTER) - template - static uint64_t type(const T &) - { - return ConvertToInt::value ? Arg::INT : Arg::CUSTOM; - } + template + MakeValue(const T &value, + typename EnableIf::value>::value, int>::type = 0) { + custom.value = &value; + custom.format = &format_custom_arg; + } - // Additional template param `Char_` is needed here because make_type always - // uses char. - template - MakeValue(const NamedArg &value) - { - pointer = &value; - } + template + static typename EnableIf::value>::value, uint64_t>::type + type(const T &) { + return Arg::CUSTOM; + } - template - static uint64_t type(const NamedArg &) - { - return Arg::NAMED_ARG; - } + // Additional template param `Char_` is needed here because make_type always + // uses char. + template + MakeValue(const NamedArg &value) { pointer = &value; } + template + MakeValue(const NamedArgWithType &value) { pointer = &value; } + + template + static uint64_t type(const NamedArg &) { return Arg::NAMED_ARG; } + template + static uint64_t type(const NamedArgWithType &) { return Arg::NAMED_ARG; } }; template -class MakeArg : public Arg -{ +class MakeArg : public Arg { public: - MakeArg() - { - type = Arg::NONE; - } + MakeArg() { + type = Arg::NONE; + } - template - MakeArg(const T &value) - : Arg(MakeValue(value)) - { - type = static_cast(MakeValue::type(value)); - } + template + MakeArg(const T &value) + : Arg(MakeValue(value)) { + type = static_cast(MakeValue::type(value)); + } }; template -struct NamedArg : Arg -{ - BasicStringRef name; +struct NamedArg : Arg { + BasicStringRef name; - template - NamedArg(BasicStringRef argname, const T &value) - : Arg(MakeArg< BasicFormatter >(value)), name(argname) {} + template + NamedArg(BasicStringRef argname, const T &value) + : Arg(MakeArg< BasicFormatter >(value)), name(argname) {} }; -class RuntimeError : public std::runtime_error -{ -protected: - RuntimeError() : std::runtime_error("") {} - ~RuntimeError() throw(); +template +struct NamedArgWithType : NamedArg { + NamedArgWithType(BasicStringRef argname, const T &value) + : NamedArg(argname, value) {} }; -template -class PrintfArgFormatter; +class RuntimeError : public std::runtime_error { + protected: + RuntimeError() : std::runtime_error("") {} + RuntimeError(const RuntimeError &rerr) : std::runtime_error(rerr) {} + FMT_API ~RuntimeError() FMT_DTOR_NOEXCEPT; +}; template class ArgMap; } // namespace internal /** An argument list. */ -class ArgList -{ -private: - // To reduce compiled code size per formatting function call, types of first - // MAX_PACKED_ARGS arguments are passed in the types_ field. - uint64_t types_; - union - { - // If the number of arguments is less than MAX_PACKED_ARGS, the argument - // values are stored in values_, otherwise they are stored in args_. - // This is done to reduce compiled code size as storing larger objects - // may require more code (at least on x86-64) even if the same amount of - // data is actually copied to stack. It saves ~10% on the bloat test. - const internal::Value *values_; - const internal::Arg *args_; - }; +class ArgList { + private: + // To reduce compiled code size per formatting function call, types of first + // MAX_PACKED_ARGS arguments are passed in the types_ field. + uint64_t types_; + union { + // If the number of arguments is less than MAX_PACKED_ARGS, the argument + // values are stored in values_, otherwise they are stored in args_. + // This is done to reduce compiled code size as storing larger objects + // may require more code (at least on x86-64) even if the same amount of + // data is actually copied to stack. It saves ~10% on the bloat test. + const internal::Value *values_; + const internal::Arg *args_; + }; + + internal::Arg::Type type(unsigned index) const { + return type(types_, index); + } - internal::Arg::Type type(unsigned index) const - { - unsigned shift = index * 4; - uint64_t mask = 0xf; - return static_cast( - (types_ & (mask << shift)) >> shift); - } + template + friend class internal::ArgMap; - template - friend class internal::ArgMap; + public: + // Maximum number of arguments with packed types. + enum { MAX_PACKED_ARGS = 16 }; -public: - // Maximum number of arguments with packed types. - enum { MAX_PACKED_ARGS = 16 }; - - ArgList() : types_(0) {} - - ArgList(ULongLong types, const internal::Value *values) - : types_(types), values_(values) {} - ArgList(ULongLong types, const internal::Arg *args) - : types_(types), args_(args) {} - - /** Returns the argument at specified index. */ - internal::Arg operator[](unsigned index) const - { - using internal::Arg; - Arg arg; - bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE; - if (index < MAX_PACKED_ARGS) - { - Arg::Type arg_type = type(index); - internal::Value &val = arg; - if (arg_type != Arg::NONE) - val = use_values ? values_[index] : args_[index]; - arg.type = arg_type; - return arg; - } - if (use_values) - { - // The index is greater than the number of arguments that can be stored - // in values, so return a "none" argument. - arg.type = Arg::NONE; - return arg; - } - for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) - { - if (args_[i].type == Arg::NONE) - return args_[i]; - } - return args_[index]; - } + ArgList() : types_(0) {} + + ArgList(ULongLong types, const internal::Value *values) + : types_(types), values_(values) {} + ArgList(ULongLong types, const internal::Arg *args) + : types_(types), args_(args) {} + + uint64_t types() const { return types_; } + + /** Returns the argument at specified index. */ + internal::Arg operator[](unsigned index) const { + using internal::Arg; + Arg arg; + bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE; + if (index < MAX_PACKED_ARGS) { + Arg::Type arg_type = type(index); + internal::Value &val = arg; + if (arg_type != Arg::NONE) + val = use_values ? values_[index] : args_[index]; + arg.type = arg_type; + return arg; + } + if (use_values) { + // The index is greater than the number of arguments that can be stored + // in values, so return a "none" argument. + arg.type = Arg::NONE; + return arg; + } + for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) { + if (args_[i].type == Arg::NONE) + return args_[i]; + } + return args_[index]; + } + + static internal::Arg::Type type(uint64_t types, unsigned index) { + unsigned shift = index * 4; + uint64_t mask = 0xf; + return static_cast( + (types & (mask << shift)) >> shift); + } }; #define FMT_DISPATCH(call) static_cast(this)->call @@ -1670,169 +1551,148 @@ class ArgList \endrst */ template -class ArgVisitor -{ -private: - typedef internal::Arg Arg; +class ArgVisitor { + private: + typedef internal::Arg Arg; -public: - void report_unhandled_arg() {} + public: + void report_unhandled_arg() {} - Result visit_unhandled_arg() - { - FMT_DISPATCH(report_unhandled_arg()); - return Result(); - } + Result visit_unhandled_arg() { + FMT_DISPATCH(report_unhandled_arg()); + return Result(); + } - /** Visits an ``int`` argument. **/ - Result visit_int(int value) - { - return FMT_DISPATCH(visit_any_int(value)); - } + /** Visits an ``int`` argument. **/ + Result visit_int(int value) { + return FMT_DISPATCH(visit_any_int(value)); + } - /** Visits a ``long long`` argument. **/ - Result visit_long_long(LongLong value) - { - return FMT_DISPATCH(visit_any_int(value)); - } + /** Visits a ``long long`` argument. **/ + Result visit_long_long(LongLong value) { + return FMT_DISPATCH(visit_any_int(value)); + } - /** Visits an ``unsigned`` argument. **/ - Result visit_uint(unsigned value) - { - return FMT_DISPATCH(visit_any_int(value)); - } + /** Visits an ``unsigned`` argument. **/ + Result visit_uint(unsigned value) { + return FMT_DISPATCH(visit_any_int(value)); + } - /** Visits an ``unsigned long long`` argument. **/ - Result visit_ulong_long(ULongLong value) - { - return FMT_DISPATCH(visit_any_int(value)); - } + /** Visits an ``unsigned long long`` argument. **/ + Result visit_ulong_long(ULongLong value) { + return FMT_DISPATCH(visit_any_int(value)); + } - /** Visits a ``bool`` argument. **/ - Result visit_bool(bool value) - { - return FMT_DISPATCH(visit_any_int(value)); - } + /** Visits a ``bool`` argument. **/ + Result visit_bool(bool value) { + return FMT_DISPATCH(visit_any_int(value)); + } - /** Visits a ``char`` or ``wchar_t`` argument. **/ - Result visit_char(int value) - { - return FMT_DISPATCH(visit_any_int(value)); - } + /** Visits a ``char`` or ``wchar_t`` argument. **/ + Result visit_char(int value) { + return FMT_DISPATCH(visit_any_int(value)); + } - /** Visits an argument of any integral type. **/ - template - Result visit_any_int(T) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits an argument of any integral type. **/ + template + Result visit_any_int(T) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** Visits a ``double`` argument. **/ - Result visit_double(double value) - { - return FMT_DISPATCH(visit_any_double(value)); - } + /** Visits a ``double`` argument. **/ + Result visit_double(double value) { + return FMT_DISPATCH(visit_any_double(value)); + } - /** Visits a ``long double`` argument. **/ - Result visit_long_double(long double value) - { - return FMT_DISPATCH(visit_any_double(value)); - } + /** Visits a ``long double`` argument. **/ + Result visit_long_double(long double value) { + return FMT_DISPATCH(visit_any_double(value)); + } - /** Visits a ``double`` or ``long double`` argument. **/ - template - Result visit_any_double(T) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits a ``double`` or ``long double`` argument. **/ + template + Result visit_any_double(T) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** Visits a null-terminated C string (``const char *``) argument. **/ - Result visit_cstring(const char *) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits a null-terminated C string (``const char *``) argument. **/ + Result visit_cstring(const char *) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** Visits a string argument. **/ - Result visit_string(Arg::StringValue) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits a string argument. **/ + Result visit_string(Arg::StringValue) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** Visits a wide string argument. **/ - Result visit_wstring(Arg::StringValue) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits a wide string argument. **/ + Result visit_wstring(Arg::StringValue) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** Visits a pointer argument. **/ - Result visit_pointer(const void *) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits a pointer argument. **/ + Result visit_pointer(const void *) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** Visits an argument of a custom (user-defined) type. **/ - Result visit_custom(Arg::CustomValue) - { - return FMT_DISPATCH(visit_unhandled_arg()); - } + /** Visits an argument of a custom (user-defined) type. **/ + Result visit_custom(Arg::CustomValue) { + return FMT_DISPATCH(visit_unhandled_arg()); + } - /** - \rst - Visits an argument dispatching to the appropriate visit method based on - the argument type. For example, if the argument type is ``double`` then - the `~fmt::ArgVisitor::visit_double()` method of the *Impl* class will be - called. - \endrst - */ - Result visit(const Arg &arg) - { - switch (arg.type) - { - case Arg::NONE: - case Arg::NAMED_ARG: - FMT_ASSERT(false, "invalid argument type"); - break; - case Arg::INT: - return FMT_DISPATCH(visit_int(arg.int_value)); - case Arg::UINT: - return FMT_DISPATCH(visit_uint(arg.uint_value)); - case Arg::LONG_LONG: - return FMT_DISPATCH(visit_long_long(arg.long_long_value)); - case Arg::ULONG_LONG: - return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value)); - case Arg::BOOL: - return FMT_DISPATCH(visit_bool(arg.int_value != 0)); - case Arg::CHAR: - return FMT_DISPATCH(visit_char(arg.int_value)); - case Arg::DOUBLE: - return FMT_DISPATCH(visit_double(arg.double_value)); - case Arg::LONG_DOUBLE: - return FMT_DISPATCH(visit_long_double(arg.long_double_value)); - case Arg::CSTRING: - return FMT_DISPATCH(visit_cstring(arg.string.value)); - case Arg::STRING: - return FMT_DISPATCH(visit_string(arg.string)); - case Arg::WSTRING: - return FMT_DISPATCH(visit_wstring(arg.wstring)); - case Arg::POINTER: - return FMT_DISPATCH(visit_pointer(arg.pointer)); - case Arg::CUSTOM: - return FMT_DISPATCH(visit_custom(arg.custom)); - } - return Result(); - } + /** + \rst + Visits an argument dispatching to the appropriate visit method based on + the argument type. For example, if the argument type is ``double`` then + the `~fmt::ArgVisitor::visit_double()` method of the *Impl* class will be + called. + \endrst + */ + Result visit(const Arg &arg) { + switch (arg.type) { + case Arg::NONE: + case Arg::NAMED_ARG: + FMT_ASSERT(false, "invalid argument type"); + break; + case Arg::INT: + return FMT_DISPATCH(visit_int(arg.int_value)); + case Arg::UINT: + return FMT_DISPATCH(visit_uint(arg.uint_value)); + case Arg::LONG_LONG: + return FMT_DISPATCH(visit_long_long(arg.long_long_value)); + case Arg::ULONG_LONG: + return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value)); + case Arg::BOOL: + return FMT_DISPATCH(visit_bool(arg.int_value != 0)); + case Arg::CHAR: + return FMT_DISPATCH(visit_char(arg.int_value)); + case Arg::DOUBLE: + return FMT_DISPATCH(visit_double(arg.double_value)); + case Arg::LONG_DOUBLE: + return FMT_DISPATCH(visit_long_double(arg.long_double_value)); + case Arg::CSTRING: + return FMT_DISPATCH(visit_cstring(arg.string.value)); + case Arg::STRING: + return FMT_DISPATCH(visit_string(arg.string)); + case Arg::WSTRING: + return FMT_DISPATCH(visit_wstring(arg.wstring)); + case Arg::POINTER: + return FMT_DISPATCH(visit_pointer(arg.pointer)); + case Arg::CUSTOM: + return FMT_DISPATCH(visit_custom(arg.custom)); + } + return Result(); + } }; -enum Alignment -{ - ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC +enum Alignment { + ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC }; // Flags. -enum -{ - SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8, - CHAR_FLAG = 0x10 // Argument has char type - used in error reporting. +enum { + SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8, + CHAR_FLAG = 0x10 // Argument has char type - used in error reporting. }; // An empty format specifier. @@ -1840,150 +1700,94 @@ struct EmptySpec {}; // A type specifier. template -struct TypeSpec : EmptySpec -{ - Alignment align() const - { - return ALIGN_DEFAULT; - } - unsigned width() const - { - return 0; - } - int precision() const - { - return -1; - } - bool flag(unsigned) const - { - return false; - } - char type() const - { - return TYPE; - } - char fill() const - { - return ' '; - } +struct TypeSpec : EmptySpec { + Alignment align() const { return ALIGN_DEFAULT; } + unsigned width() const { return 0; } + int precision() const { return -1; } + bool flag(unsigned) const { return false; } + char type() const { return TYPE; } + char type_prefix() const { return TYPE; } + char fill() const { return ' '; } }; // A width specifier. -struct WidthSpec -{ - unsigned width_; - // Fill is always wchar_t and cast to char if necessary to avoid having - // two specialization of WidthSpec and its subclasses. - wchar_t fill_; - - WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {} - - unsigned width() const - { - return width_; - } - wchar_t fill() const - { - return fill_; - } +struct WidthSpec { + unsigned width_; + // Fill is always wchar_t and cast to char if necessary to avoid having + // two specialization of WidthSpec and its subclasses. + wchar_t fill_; + + WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {} + + unsigned width() const { return width_; } + wchar_t fill() const { return fill_; } }; // An alignment specifier. -struct AlignSpec : WidthSpec -{ - Alignment align_; +struct AlignSpec : WidthSpec { + Alignment align_; - AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT) - : WidthSpec(width, fill), align_(align) {} + AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT) + : WidthSpec(width, fill), align_(align) {} - Alignment align() const - { - return align_; - } + Alignment align() const { return align_; } - int precision() const - { - return -1; - } + int precision() const { return -1; } }; // An alignment and type specifier. template -struct AlignTypeSpec : AlignSpec -{ - AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {} +struct AlignTypeSpec : AlignSpec { + AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {} - bool flag(unsigned) const - { - return false; - } - char type() const - { - return TYPE; - } + bool flag(unsigned) const { return false; } + char type() const { return TYPE; } + char type_prefix() const { return TYPE; } }; // A full format specifier. -struct FormatSpec : AlignSpec -{ - unsigned flags_; - int precision_; - char type_; - - FormatSpec( - unsigned width = 0, char type = 0, wchar_t fill = ' ') - : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {} - - bool flag(unsigned f) const - { - return (flags_ & f) != 0; - } - int precision() const - { - return precision_; - } - char type() const - { - return type_; - } +struct FormatSpec : AlignSpec { + unsigned flags_; + int precision_; + char type_; + + FormatSpec( + unsigned width = 0, char type = 0, wchar_t fill = ' ') + : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {} + + bool flag(unsigned f) const { return (flags_ & f) != 0; } + int precision() const { return precision_; } + char type() const { return type_; } + char type_prefix() const { return type_; } }; // An integer format specifier. template , typename Char = char> -class IntFormatSpec : public SpecT -{ -private: - T value_; +class IntFormatSpec : public SpecT { + private: + T value_; -public: - IntFormatSpec(T val, const SpecT &spec = SpecT()) - : SpecT(spec), value_(val) {} + public: + IntFormatSpec(T val, const SpecT &spec = SpecT()) + : SpecT(spec), value_(val) {} - T value() const - { - return value_; - } + T value() const { return value_; } }; // A string format specifier. template -class StrFormatSpec : public AlignSpec -{ -private: - const Char *str_; - -public: - template - StrFormatSpec(const Char *str, unsigned width, FillChar fill) - : AlignSpec(width, fill), str_(str) - { - internal::CharTraits::convert(FillChar()); - } +class StrFormatSpec : public AlignSpec { + private: + const Char *str_; + + public: + template + StrFormatSpec(const Char *str, unsigned width, FillChar fill) + : AlignSpec(width, fill), str_(str) { + internal::CharTraits::convert(FillChar()); + } - const Char *str() const - { - return str_; - } + const Char *str() const { return str_; } }; /** @@ -2096,250 +1900,190 @@ FMT_DEFINE_INT_FORMATTERS(ULongLong) */ template inline StrFormatSpec pad( - const Char *str, unsigned width, Char fill = ' ') -{ - return StrFormatSpec(str, width, fill); + const Char *str, unsigned width, Char fill = ' ') { + return StrFormatSpec(str, width, fill); } inline StrFormatSpec pad( - const wchar_t *str, unsigned width, char fill = ' ') -{ - return StrFormatSpec(str, width, fill); + const wchar_t *str, unsigned width, char fill = ' ') { + return StrFormatSpec(str, width, fill); } -namespace internal -{ +namespace internal { template -class ArgMap -{ -private: - typedef std::vector< +class ArgMap { + private: + typedef std::vector< std::pair, internal::Arg> > MapType; - typedef typename MapType::value_type Pair; + typedef typename MapType::value_type Pair; - MapType map_; + MapType map_; -public: - FMT_API void init(const ArgList &args); - - const internal::Arg* find(const fmt::BasicStringRef &name) const - { - // The list is unsorted, so just return the first matching name. - for (typename MapType::const_iterator it = map_.begin(), end = map_.end(); - it != end; ++it) - { - if (it->first == name) - return &it->second; - } - return 0; + public: + FMT_API void init(const ArgList &args); + + const internal::Arg *find(const fmt::BasicStringRef &name) const { + // The list is unsorted, so just return the first matching name. + for (typename MapType::const_iterator it = map_.begin(), end = map_.end(); + it != end; ++it) { + if (it->first == name) + return &it->second; } + return FMT_NULL; + } }; -template -class ArgFormatterBase : public ArgVisitor -{ -private: - BasicWriter &writer_; - FormatSpec &spec_; +template +class ArgFormatterBase : public ArgVisitor { + private: + BasicWriter &writer_; + Spec &spec_; - FMT_DISALLOW_COPY_AND_ASSIGN(ArgFormatterBase); + FMT_DISALLOW_COPY_AND_ASSIGN(ArgFormatterBase); - void write_pointer(const void *p) - { - spec_.flags_ = HASH_FLAG; - spec_.type_ = 'x'; - writer_.write_int(reinterpret_cast(p), spec_); - } - -protected: - BasicWriter &writer() - { - return writer_; - } - FormatSpec &spec() - { - return spec_; - } + void write_pointer(const void *p) { + spec_.flags_ = HASH_FLAG; + spec_.type_ = 'x'; + writer_.write_int(reinterpret_cast(p), spec_); + } - void write(bool value) - { - const char *str_value = value ? "true" : "false"; - Arg::StringValue str = { str_value, std::strlen(str_value) }; - writer_.write_str(str, spec_); - } + // workaround MSVC two-phase lookup issue + typedef internal::Arg Arg; - void write(const char *value) - { - Arg::StringValue str = {value, value != 0 ? std::strlen(value) : 0}; - writer_.write_str(str, spec_); - } + protected: + BasicWriter &writer() { return writer_; } + Spec &spec() { return spec_; } -public: - ArgFormatterBase(BasicWriter &w, FormatSpec &s) - : writer_(w), spec_(s) {} + void write(bool value) { + const char *str_value = value ? "true" : "false"; + Arg::StringValue str = { str_value, std::strlen(str_value) }; + writer_.write_str(str, spec_); + } - template - void visit_any_int(T value) - { - writer_.write_int(value, spec_); - } + void write(const char *value) { + Arg::StringValue str = {value, value ? std::strlen(value) : 0}; + writer_.write_str(str, spec_); + } - template - void visit_any_double(T value) - { - writer_.write_double(value, spec_); - } + public: + typedef Spec SpecType; - void visit_bool(bool value) - { - if (spec_.type_) - return visit_any_int(value); - write(value); - } + ArgFormatterBase(BasicWriter &w, Spec &s) + : writer_(w), spec_(s) {} - void visit_char(int value) - { - if (spec_.type_ && spec_.type_ != 'c') - { - spec_.flags_ |= CHAR_FLAG; - writer_.write_int(value, spec_); - return; - } - if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0) - FMT_THROW(FormatError("invalid format specifier for char")); - typedef typename BasicWriter::CharPtr CharPtr; - Char fill = internal::CharTraits::cast(spec_.fill()); - CharPtr out = CharPtr(); - const unsigned CHAR_SIZE = 1; - if (spec_.width_ > CHAR_SIZE) - { - out = writer_.grow_buffer(spec_.width_); - if (spec_.align_ == ALIGN_RIGHT) - { - std::uninitialized_fill_n(out, spec_.width_ - CHAR_SIZE, fill); - out += spec_.width_ - CHAR_SIZE; - } - else if (spec_.align_ == ALIGN_CENTER) - { - out = writer_.fill_padding(out, spec_.width_, - internal::const_check(CHAR_SIZE), fill); - } - else - { - std::uninitialized_fill_n(out + CHAR_SIZE, - spec_.width_ - CHAR_SIZE, fill); - } - } - else - { - out = writer_.grow_buffer(CHAR_SIZE); - } - *out = internal::CharTraits::cast(value); - } + template + void visit_any_int(T value) { writer_.write_int(value, spec_); } - void visit_cstring(const char *value) - { - if (spec_.type_ == 'p') - return write_pointer(value); - write(value); - } + template + void visit_any_double(T value) { writer_.write_double(value, spec_); } - void visit_string(Arg::StringValue value) - { - writer_.write_str(value, spec_); + void visit_bool(bool value) { + if (spec_.type_) { + visit_any_int(value); + return; } + write(value); + } - using ArgVisitor::visit_wstring; - - void visit_wstring(Arg::StringValue value) - { - writer_.write_str(value, spec_); + void visit_char(int value) { + if (spec_.type_ && spec_.type_ != 'c') { + spec_.flags_ |= CHAR_FLAG; + writer_.write_int(value, spec_); + return; } + if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0) + FMT_THROW(FormatError("invalid format specifier for char")); + typedef typename BasicWriter::CharPtr CharPtr; + Char fill = internal::CharTraits::cast(spec_.fill()); + CharPtr out = CharPtr(); + const unsigned CHAR_SIZE = 1; + if (spec_.width_ > CHAR_SIZE) { + out = writer_.grow_buffer(spec_.width_); + if (spec_.align_ == ALIGN_RIGHT) { + std::uninitialized_fill_n(out, spec_.width_ - CHAR_SIZE, fill); + out += spec_.width_ - CHAR_SIZE; + } else if (spec_.align_ == ALIGN_CENTER) { + out = writer_.fill_padding(out, spec_.width_, + internal::const_check(CHAR_SIZE), fill); + } else { + std::uninitialized_fill_n(out + CHAR_SIZE, + spec_.width_ - CHAR_SIZE, fill); + } + } else { + out = writer_.grow_buffer(CHAR_SIZE); + } + *out = internal::CharTraits::cast(value); + } - void visit_pointer(const void *value) - { - if (spec_.type_ && spec_.type_ != 'p') - report_unknown_type(spec_.type_, "pointer"); - write_pointer(value); - } -}; + void visit_cstring(const char *value) { + if (spec_.type_ == 'p') + return write_pointer(value); + write(value); + } -class FormatterBase -{ -private: - ArgList args_; - int next_arg_index_; + // Qualification with "internal" here and below is a workaround for nvcc. + void visit_string(internal::Arg::StringValue value) { + writer_.write_str(value, spec_); + } - // Returns the argument with specified index. - FMT_API Arg do_get_arg(unsigned arg_index, const char *&error); + using ArgVisitor::visit_wstring; -protected: - const ArgList &args() const - { - return args_; - } + void visit_wstring(internal::Arg::StringValue value) { + writer_.write_str(value, spec_); + } - explicit FormatterBase(const ArgList &args) - { - args_ = args; - next_arg_index_ = 0; - } + void visit_pointer(const void *value) { + if (spec_.type_ && spec_.type_ != 'p') + report_unknown_type(spec_.type_, "pointer"); + write_pointer(value); + } +}; - // Returns the next argument. - Arg next_arg(const char *&error) - { - if (next_arg_index_ >= 0) - return do_get_arg(internal::to_unsigned(next_arg_index_++), error); - error = "cannot switch from manual to automatic argument indexing"; - return Arg(); - } +class FormatterBase { + private: + ArgList args_; + int next_arg_index_; - // Checks if manual indexing is used and returns the argument with - // specified index. - Arg get_arg(unsigned arg_index, const char *&error) - { - return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg(); - } + // Returns the argument with specified index. + FMT_API Arg do_get_arg(unsigned arg_index, const char *&error); - bool check_no_auto_index(const char *&error) - { - if (next_arg_index_ > 0) - { - error = "cannot switch from automatic to manual argument indexing"; - return false; - } - next_arg_index_ = -1; - return true; - } + protected: + const ArgList &args() const { return args_; } - template - void write(BasicWriter &w, const Char *start, const Char *end) - { - if (start != end) - w << BasicStringRef(start, internal::to_unsigned(end - start)); - } -}; + explicit FormatterBase(const ArgList &args) { + args_ = args; + next_arg_index_ = 0; + } -// A printf formatter. -template -class PrintfFormatter : private FormatterBase -{ -private: - void parse_flags(FormatSpec &spec, const Char *&s); + // Returns the next argument. + Arg next_arg(const char *&error) { + if (next_arg_index_ >= 0) + return do_get_arg(internal::to_unsigned(next_arg_index_++), error); + error = "cannot switch from manual to automatic argument indexing"; + return Arg(); + } - // Returns the argument with specified index or, if arg_index is equal - // to the maximum unsigned value, the next argument. - Arg get_arg(const Char *s, - unsigned arg_index = (std::numeric_limits::max)()); + // Checks if manual indexing is used and returns the argument with + // specified index. + Arg get_arg(unsigned arg_index, const char *&error) { + return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg(); + } - // Parses argument index, flags and width and returns the argument index. - unsigned parse_header(const Char *&s, FormatSpec &spec); + bool check_no_auto_index(const char *&error) { + if (next_arg_index_ > 0) { + error = "cannot switch from automatic to manual argument indexing"; + return false; + } + next_arg_index_ = -1; + return true; + } -public: - explicit PrintfFormatter(const ArgList &args) : FormatterBase(args) {} - FMT_API void format(BasicWriter &writer, - BasicCStringRef format_str); + template + void write(BasicWriter &w, const Char *start, const Char *end) { + if (start != end) + w << BasicStringRef(start, internal::to_unsigned(end - start)); + } }; } // namespace internal @@ -2360,93 +2104,88 @@ class PrintfFormatter : private FormatterBase will be called. \endrst */ -template -class BasicArgFormatter : public internal::ArgFormatterBase -{ -private: - BasicFormatter &formatter_; - const Char *format_; - -public: - /** - \rst - Constructs an argument formatter object. - *formatter* is a reference to the main formatter object, *spec* contains - format specifier information for standard argument types, and *fmt* points - to the part of the format string being parsed for custom argument types. - \endrst - */ - BasicArgFormatter(BasicFormatter &formatter, - FormatSpec &spec, const Char *fmt) - : internal::ArgFormatterBase(formatter.writer(), spec), - formatter_(formatter), format_(fmt) {} - - /** Formats argument of a custom (user-defined) type. */ - void visit_custom(internal::Arg::CustomValue c) - { - c.format(&formatter_, c.value, &format_); - } +template +class BasicArgFormatter : public internal::ArgFormatterBase { + private: + BasicFormatter &formatter_; + const Char *format_; + + public: + /** + \rst + Constructs an argument formatter object. + *formatter* is a reference to the main formatter object, *spec* contains + format specifier information for standard argument types, and *fmt* points + to the part of the format string being parsed for custom argument types. + \endrst + */ + BasicArgFormatter(BasicFormatter &formatter, + Spec &spec, const Char *fmt) + : internal::ArgFormatterBase(formatter.writer(), spec), + formatter_(formatter), format_(fmt) {} + + /** Formats an argument of a custom (user-defined) type. */ + void visit_custom(internal::Arg::CustomValue c) { + c.format(&formatter_, c.value, &format_); + } }; /** The default argument formatter. */ template -class ArgFormatter : public BasicArgFormatter, Char> -{ -public: - /** Constructs an argument formatter object. */ - ArgFormatter(BasicFormatter &formatter, - FormatSpec &spec, const Char *fmt) - : BasicArgFormatter, Char>(formatter, spec, fmt) {} +class ArgFormatter : + public BasicArgFormatter, Char, FormatSpec> { + public: + /** Constructs an argument formatter object. */ + ArgFormatter(BasicFormatter &formatter, + FormatSpec &spec, const Char *fmt) + : BasicArgFormatter, + Char, FormatSpec>(formatter, spec, fmt) {} }; /** This template formats data and writes the output to a writer. */ template -class BasicFormatter : private internal::FormatterBase -{ -public: - /** The character type for the output. */ - typedef CharType Char; +class BasicFormatter : private internal::FormatterBase { + public: + /** The character type for the output. */ + typedef CharType Char; -private: - BasicWriter &writer_; - internal::ArgMap map_; + private: + BasicWriter &writer_; + internal::ArgMap map_; - FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter); + FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter); - using internal::FormatterBase::get_arg; + using internal::FormatterBase::get_arg; - // Checks if manual indexing is used and returns the argument with - // specified name. - internal::Arg get_arg(BasicStringRef arg_name, const char *&error); + // Checks if manual indexing is used and returns the argument with + // specified name. + internal::Arg get_arg(BasicStringRef arg_name, const char *&error); - // Parses argument index and returns corresponding argument. - internal::Arg parse_arg_index(const Char *&s); + // Parses argument index and returns corresponding argument. + internal::Arg parse_arg_index(const Char *&s); - // Parses argument name and returns corresponding argument. - internal::Arg parse_arg_name(const Char *&s); + // Parses argument name and returns corresponding argument. + internal::Arg parse_arg_name(const Char *&s); -public: - /** - \rst - Constructs a ``BasicFormatter`` object. References to the arguments and - the writer are stored in the formatter object so make sure they have - appropriate lifetimes. - \endrst - */ - BasicFormatter(const ArgList &args, BasicWriter &w) - : internal::FormatterBase(args), writer_(w) {} - - /** Returns a reference to the writer associated with this formatter. */ - BasicWriter &writer() - { - return writer_; - } + public: + /** + \rst + Constructs a ``BasicFormatter`` object. References to the arguments and + the writer are stored in the formatter object so make sure they have + appropriate lifetimes. + \endrst + */ + BasicFormatter(const ArgList &args, BasicWriter &w) + : internal::FormatterBase(args), writer_(w) {} + + /** Returns a reference to the writer associated with this formatter. */ + BasicWriter &writer() { return writer_; } - /** Formats stored arguments and writes the output to the writer. */ - void format(BasicCStringRef format_str); + /** Formats stored arguments and writes the output to the writer. */ + void format(BasicCStringRef format_str); - // Formats a single argument and advances format_str, a format string pointer. - const Char *format(const Char *&format_str, const internal::Arg &arg); + // Formats a single argument and advances format_str, a format string pointer. + const Char *format(const Char *&format_str, const internal::Arg &arg); }; // Generates a comma-separated list with results of applying f to @@ -2468,30 +2207,23 @@ class BasicFormatter : private internal::FormatterBase # define FMT_GEN14(f) FMT_GEN13(f), f(13) # define FMT_GEN15(f) FMT_GEN14(f), f(14) -namespace internal -{ -inline uint64_t make_type() -{ - return 0; -} +namespace internal { +inline uint64_t make_type() { return 0; } template -inline uint64_t make_type(const T &arg) -{ - return MakeValue< BasicFormatter >::type(arg); +inline uint64_t make_type(const T &arg) { + return MakeValue< BasicFormatter >::type(arg); } -template - struct ArgArray; +template +struct ArgArray; -template -struct ArgArray -{ - typedef Value Type[N > 0 ? N : 1]; +template +struct ArgArray { + typedef Value Type[N > 0 ? N : 1]; -template -static Value make(const T &value) -{ + template + static Value make(const T &value) { #ifdef __clang__ Value result = MakeValue(value); // Workaround a bug in Apple LLVM version 4.2 (clang-425.0.28) of clang: @@ -2501,48 +2233,41 @@ static Value make(const T &value) #else return MakeValue(value); #endif -} - }; + } +}; -template -struct ArgArray -{ - typedef Arg Type[N + 1]; // +1 for the list end Arg::NONE +template +struct ArgArray { + typedef Arg Type[N + 1]; // +1 for the list end Arg::NONE - template - static Arg make(const T &value) - { - return MakeArg(value); - } + template + static Arg make(const T &value) { return MakeArg(value); } }; #if FMT_USE_VARIADIC_TEMPLATES template -inline uint64_t make_type(const Arg &first, const Args & ... tail) -{ - return make_type(first) | (make_type(tail...) << 4); +inline uint64_t make_type(const Arg &first, const Args & ... tail) { + return make_type(first) | (make_type(tail...) << 4); } #else -struct ArgType -{ - uint64_t type; +struct ArgType { + uint64_t type; - ArgType() : type(0) {} + ArgType() : type(0) {} - template - ArgType(const T &arg) : type(make_type(arg)) {} + template + ArgType(const T &arg) : type(make_type(arg)) {} }; # define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType() -inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) -{ - return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) | - (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) | - (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) | - (t12.type << 48) | (t13.type << 52) | (t14.type << 56); +inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) { + return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) | + (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) | + (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) | + (t12.type << 48) | (t13.type << 52) | (t14.type << 56); } #endif } // namespace internal @@ -2649,58 +2374,66 @@ inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) An error returned by an operating system or a language runtime, for example a file opening error. */ -class SystemError : public internal::RuntimeError -{ -private: - void init(int err_code, CStringRef format_str, ArgList args); - -protected: - int error_code_; - - typedef char Char; // For FMT_VARIADIC_CTOR. - - SystemError() {} - -public: - /** - \rst - Constructs a :class:`fmt::SystemError` object with the description - of the form - - .. parsed-literal:: - **: ** - - where ** is the formatted message and ** is - the system message corresponding to the error code. - *error_code* is a system error code as given by ``errno``. - If *error_code* is not a valid error code such as -1, the system message - may look like "Unknown error -1" and is platform-dependent. - - **Example**:: - - // This throws a SystemError with the description - // cannot open file 'madeup': No such file or directory - // or similar (system message may vary). - const char *filename = "madeup"; - std::FILE *file = std::fopen(filename, "r"); - if (!file) - throw fmt::SystemError(errno, "cannot open file '{}'", filename); - \endrst - */ - SystemError(int error_code, CStringRef message) - { - init(error_code, message, ArgList()); - } - FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef) +class SystemError : public internal::RuntimeError { + private: + FMT_API void init(int err_code, CStringRef format_str, ArgList args); + + protected: + int error_code_; + + typedef char Char; // For FMT_VARIADIC_CTOR. + + SystemError() {} + + public: + /** + \rst + Constructs a :class:`fmt::SystemError` object with a description + formatted with `fmt::format_system_error`. *message* and additional + arguments passed into the constructor are formatted similarly to + `fmt::format`. + + **Example**:: + + // This throws a SystemError with the description + // cannot open file 'madeup': No such file or directory + // or similar (system message may vary). + const char *filename = "madeup"; + std::FILE *file = std::fopen(filename, "r"); + if (!file) + throw fmt::SystemError(errno, "cannot open file '{}'", filename); + \endrst + */ + SystemError(int error_code, CStringRef message) { + init(error_code, message, ArgList()); + } + FMT_DEFAULTED_COPY_CTOR(SystemError) + FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef) - ~SystemError() throw(); + FMT_API ~SystemError() FMT_DTOR_NOEXCEPT; - int error_code() const - { - return error_code_; - } + int error_code() const { return error_code_; } }; +/** + \rst + Formats an error returned by an operating system or a language runtime, + for example a file opening error, and writes it to *out* in the following + form: + + .. parsed-literal:: + **: ** + + where ** is the passed message and ** is + the system message corresponding to the error code. + *error_code* is a system error code as given by ``errno``. + If *error_code* is not a valid error code such as -1, the system message + may look like "Unknown error -1" and is platform-dependent. + \endrst + */ +FMT_API void format_system_error(fmt::Writer &out, int error_code, + fmt::StringRef message) FMT_NOEXCEPT; + /** \rst This template provides operations for formatting and writing data into @@ -2720,770 +2453,649 @@ class SystemError : public internal::RuntimeError \endrst */ template -class BasicWriter -{ -private: - // Output buffer. - Buffer &buffer_; +class BasicWriter { + private: + // Output buffer. + Buffer &buffer_; - FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter); + FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter); - typedef typename internal::CharTraits::CharPtr CharPtr; + typedef typename internal::CharTraits::CharPtr CharPtr; #if FMT_SECURE_SCL - // Returns pointer value. - static Char *get(CharPtr p) - { - return p.base(); - } + // Returns pointer value. + static Char *get(CharPtr p) { return p.base(); } #else - static Char *get(Char *p) - { - return p; - } + static Char *get(Char *p) { return p; } #endif - // Fills the padding around the content and returns the pointer to the - // content area. - static CharPtr fill_padding(CharPtr buffer, - unsigned total_size, std::size_t content_size, wchar_t fill); - - // Grows the buffer by n characters and returns a pointer to the newly - // allocated area. - CharPtr grow_buffer(std::size_t n) - { - std::size_t size = buffer_.size(); - buffer_.resize(size + n); - return internal::make_ptr(&buffer_[size], n); - } - - // Writes an unsigned decimal integer. - template - Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0) - { - unsigned num_digits = internal::count_digits(value); - Char *ptr = get(grow_buffer(prefix_size + num_digits)); - internal::format_decimal(ptr + prefix_size, value, num_digits); - return ptr; - } - - // Writes a decimal integer. - template - void write_decimal(Int value) - { - typedef typename internal::IntTraits::MainType MainType; - MainType abs_value = static_cast(value); - if (internal::is_negative(value)) - { - abs_value = 0 - abs_value; - *write_unsigned_decimal(abs_value, 1) = '-'; - } - else - { - write_unsigned_decimal(abs_value, 0); - } - } + // Fills the padding around the content and returns the pointer to the + // content area. + static CharPtr fill_padding(CharPtr buffer, + unsigned total_size, std::size_t content_size, wchar_t fill); + + // Grows the buffer by n characters and returns a pointer to the newly + // allocated area. + CharPtr grow_buffer(std::size_t n) { + std::size_t size = buffer_.size(); + buffer_.resize(size + n); + return internal::make_ptr(&buffer_[size], n); + } - // Prepare a buffer for integer formatting. - CharPtr prepare_int_buffer(unsigned num_digits, - const EmptySpec &, const char *prefix, unsigned prefix_size) - { - unsigned size = prefix_size + num_digits; - CharPtr p = grow_buffer(size); - std::uninitialized_copy(prefix, prefix + prefix_size, p); - return p + size - 1; - } + // Writes an unsigned decimal integer. + template + Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0) { + unsigned num_digits = internal::count_digits(value); + Char *ptr = get(grow_buffer(prefix_size + num_digits)); + internal::format_decimal(ptr + prefix_size, value, num_digits); + return ptr; + } - template - CharPtr prepare_int_buffer(unsigned num_digits, - const Spec &spec, const char *prefix, unsigned prefix_size); - - // Formats an integer. - template - void write_int(T value, Spec spec); - - // Formats a floating-point number (double or long double). - template - void write_double(T value, const FormatSpec &spec); - - // Writes a formatted string. - template - CharPtr write_str(const StrChar *s, std::size_t size, const AlignSpec &spec); - - template - void write_str(const internal::Arg::StringValue &str, - const FormatSpec &spec); - - // This following methods are private to disallow writing wide characters - // and strings to a char stream. If you want to print a wide string as a - // pointer as std::ostream does, cast it to const void*. - // Do not implement! - void operator<<(typename internal::WCharHelper::Unsupported); - void operator<<( - typename internal::WCharHelper::Unsupported); - - // Appends floating-point length specifier to the format string. - // The second argument is only used for overload resolution. - void append_float_length(Char *&format_ptr, long double) - { - *format_ptr++ = 'L'; + // Writes a decimal integer. + template + void write_decimal(Int value) { + typedef typename internal::IntTraits::MainType MainType; + MainType abs_value = static_cast(value); + if (internal::is_negative(value)) { + abs_value = 0 - abs_value; + *write_unsigned_decimal(abs_value, 1) = '-'; + } else { + write_unsigned_decimal(abs_value, 0); } + } - template - void append_float_length(Char *&, T) {} - - template - friend class internal::ArgFormatterBase; - - friend class internal::PrintfArgFormatter; - -protected: - /** - Constructs a ``BasicWriter`` object. - */ - explicit BasicWriter(Buffer &b) : buffer_(b) {} - -public: - /** - \rst - Destroys a ``BasicWriter`` object. - \endrst - */ - virtual ~BasicWriter() {} - - /** - Returns the total number of characters written. - */ - std::size_t size() const - { - return buffer_.size(); - } + // Prepare a buffer for integer formatting. + CharPtr prepare_int_buffer(unsigned num_digits, + const EmptySpec &, const char *prefix, unsigned prefix_size) { + unsigned size = prefix_size + num_digits; + CharPtr p = grow_buffer(size); + std::uninitialized_copy(prefix, prefix + prefix_size, p); + return p + size - 1; + } - /** - Returns a pointer to the output buffer content. No terminating null - character is appended. - */ - const Char *data() const FMT_NOEXCEPT - { - return &buffer_[0]; - } + template + CharPtr prepare_int_buffer(unsigned num_digits, + const Spec &spec, const char *prefix, unsigned prefix_size); + + // Formats an integer. + template + void write_int(T value, Spec spec); + + // Formats a floating-point number (double or long double). + template + void write_double(T value, const Spec &spec); + + // Writes a formatted string. + template + CharPtr write_str(const StrChar *s, std::size_t size, const AlignSpec &spec); + + template + void write_str(const internal::Arg::StringValue &str, + const Spec &spec); + + // This following methods are private to disallow writing wide characters + // and strings to a char stream. If you want to print a wide string as a + // pointer as std::ostream does, cast it to const void*. + // Do not implement! + void operator<<(typename internal::WCharHelper::Unsupported); + void operator<<( + typename internal::WCharHelper::Unsupported); + + // Appends floating-point length specifier to the format string. + // The second argument is only used for overload resolution. + void append_float_length(Char *&format_ptr, long double) { + *format_ptr++ = 'L'; + } - /** - Returns a pointer to the output buffer content with terminating null - character appended. - */ - const Char *c_str() const - { - std::size_t size = buffer_.size(); - buffer_.reserve(size + 1); - buffer_[size] = '\0'; - return &buffer_[0]; - } + template + void append_float_length(Char *&, T) {} + + template + friend class internal::ArgFormatterBase; + + template + friend class BasicPrintfArgFormatter; + + protected: + /** + Constructs a ``BasicWriter`` object. + */ + explicit BasicWriter(Buffer &b) : buffer_(b) {} + + public: + /** + \rst + Destroys a ``BasicWriter`` object. + \endrst + */ + virtual ~BasicWriter() {} + + /** + Returns the total number of characters written. + */ + std::size_t size() const { return buffer_.size(); } + + /** + Returns a pointer to the output buffer content. No terminating null + character is appended. + */ + const Char *data() const FMT_NOEXCEPT { return &buffer_[0]; } + + /** + Returns a pointer to the output buffer content with terminating null + character appended. + */ + const Char *c_str() const { + std::size_t size = buffer_.size(); + buffer_.reserve(size + 1); + buffer_[size] = '\0'; + return &buffer_[0]; + } - /** - \rst - Returns the content of the output buffer as an `std::string`. - \endrst - */ - std::basic_string str() const - { - return std::basic_string(&buffer_[0], buffer_.size()); - } + /** + \rst + Returns the content of the output buffer as an `std::string`. + \endrst + */ + std::basic_string str() const { + return std::basic_string(&buffer_[0], buffer_.size()); + } - /** - \rst - Writes formatted data. + /** + \rst + Writes formatted data. - *args* is an argument list representing arbitrary arguments. + *args* is an argument list representing arbitrary arguments. - **Example**:: + **Example**:: - MemoryWriter out; - out.write("Current point:\n"); - out.write("({:+f}, {:+f})", -3.14, 3.14); + MemoryWriter out; + out.write("Current point:\n"); + out.write("({:+f}, {:+f})", -3.14, 3.14); - This will write the following output to the ``out`` object: + This will write the following output to the ``out`` object: - .. code-block:: none + .. code-block:: none - Current point: - (-3.140000, +3.140000) + Current point: + (-3.140000, +3.140000) - The output can be accessed using :func:`data()`, :func:`c_str` or - :func:`str` methods. + The output can be accessed using :func:`data()`, :func:`c_str` or + :func:`str` methods. - See also :ref:`syntax`. - \endrst - */ - void write(BasicCStringRef format, ArgList args) - { - BasicFormatter(args, *this).format(format); - } - FMT_VARIADIC_VOID(write, BasicCStringRef) + See also :ref:`syntax`. + \endrst + */ + void write(BasicCStringRef format, ArgList args) { + BasicFormatter(args, *this).format(format); + } + FMT_VARIADIC_VOID(write, BasicCStringRef) - BasicWriter &operator<<(int value) - { - write_decimal(value); - return *this; - } - BasicWriter &operator<<(unsigned value) - { - return *this << IntFormatSpec(value); - } - BasicWriter &operator<<(long value) - { - write_decimal(value); - return *this; - } - BasicWriter &operator<<(unsigned long value) - { - return *this << IntFormatSpec(value); - } - BasicWriter &operator<<(LongLong value) - { - write_decimal(value); - return *this; - } + BasicWriter &operator<<(int value) { + write_decimal(value); + return *this; + } + BasicWriter &operator<<(unsigned value) { + return *this << IntFormatSpec(value); + } + BasicWriter &operator<<(long value) { + write_decimal(value); + return *this; + } + BasicWriter &operator<<(unsigned long value) { + return *this << IntFormatSpec(value); + } + BasicWriter &operator<<(LongLong value) { + write_decimal(value); + return *this; + } - /** - \rst - Formats *value* and writes it to the stream. - \endrst - */ - BasicWriter &operator<<(ULongLong value) - { - return *this << IntFormatSpec(value); - } + /** + \rst + Formats *value* and writes it to the stream. + \endrst + */ + BasicWriter &operator<<(ULongLong value) { + return *this << IntFormatSpec(value); + } - BasicWriter &operator<<(double value) - { - write_double(value, FormatSpec()); - return *this; - } + BasicWriter &operator<<(double value) { + write_double(value, FormatSpec()); + return *this; + } - /** - \rst - Formats *value* using the general format for floating-point numbers - (``'g'``) and writes it to the stream. - \endrst - */ - BasicWriter &operator<<(long double value) - { - write_double(value, FormatSpec()); - return *this; - } + /** + \rst + Formats *value* using the general format for floating-point numbers + (``'g'``) and writes it to the stream. + \endrst + */ + BasicWriter &operator<<(long double value) { + write_double(value, FormatSpec()); + return *this; + } - /** - Writes a character to the stream. - */ - BasicWriter &operator<<(char value) - { - buffer_.push_back(value); - return *this; - } + /** + Writes a character to the stream. + */ + BasicWriter &operator<<(char value) { + buffer_.push_back(value); + return *this; + } - BasicWriter &operator<<( - typename internal::WCharHelper::Supported value) - { - buffer_.push_back(value); - return *this; - } + BasicWriter &operator<<( + typename internal::WCharHelper::Supported value) { + buffer_.push_back(value); + return *this; + } - /** - \rst - Writes *value* to the stream. - \endrst - */ - BasicWriter &operator<<(fmt::BasicStringRef value) - { - const Char *str = value.data(); - buffer_.append(str, str + value.size()); - return *this; - } + /** + \rst + Writes *value* to the stream. + \endrst + */ + BasicWriter &operator<<(fmt::BasicStringRef value) { + const Char *str = value.data(); + buffer_.append(str, str + value.size()); + return *this; + } - BasicWriter &operator<<( - typename internal::WCharHelper::Supported value) - { - const char *str = value.data(); - buffer_.append(str, str + value.size()); - return *this; - } + BasicWriter &operator<<( + typename internal::WCharHelper::Supported value) { + const char *str = value.data(); + buffer_.append(str, str + value.size()); + return *this; + } - template - BasicWriter &operator<<(IntFormatSpec spec) - { - internal::CharTraits::convert(FillChar()); - write_int(spec.value(), spec); - return *this; - } + template + BasicWriter &operator<<(IntFormatSpec spec) { + internal::CharTraits::convert(FillChar()); + write_int(spec.value(), spec); + return *this; + } - template - BasicWriter &operator<<(const StrFormatSpec &spec) - { - const StrChar *s = spec.str(); - write_str(s, std::char_traits::length(s), spec); - return *this; - } + template + BasicWriter &operator<<(const StrFormatSpec &spec) { + const StrChar *s = spec.str(); + write_str(s, std::char_traits::length(s), spec); + return *this; + } - void clear() FMT_NOEXCEPT { buffer_.clear(); } + void clear() FMT_NOEXCEPT { buffer_.clear(); } - Buffer &buffer() FMT_NOEXCEPT { return buffer_; } + Buffer &buffer() FMT_NOEXCEPT { return buffer_; } }; template template typename BasicWriter::CharPtr BasicWriter::write_str( - const StrChar *s, std::size_t size, const AlignSpec &spec) -{ - CharPtr out = CharPtr(); - if (spec.width() > size) - { - out = grow_buffer(spec.width()); - Char fill = internal::CharTraits::cast(spec.fill()); - if (spec.align() == ALIGN_RIGHT) - { - std::uninitialized_fill_n(out, spec.width() - size, fill); - out += spec.width() - size; - } - else if (spec.align() == ALIGN_CENTER) - { - out = fill_padding(out, spec.width(), size, fill); - } - else - { - std::uninitialized_fill_n(out + size, spec.width() - size, fill); - } - } - else - { - out = grow_buffer(size); - } - std::uninitialized_copy(s, s + size, out); - return out; + const StrChar *s, std::size_t size, const AlignSpec &spec) { + CharPtr out = CharPtr(); + if (spec.width() > size) { + out = grow_buffer(spec.width()); + Char fill = internal::CharTraits::cast(spec.fill()); + if (spec.align() == ALIGN_RIGHT) { + std::uninitialized_fill_n(out, spec.width() - size, fill); + out += spec.width() - size; + } else if (spec.align() == ALIGN_CENTER) { + out = fill_padding(out, spec.width(), size, fill); + } else { + std::uninitialized_fill_n(out + size, spec.width() - size, fill); + } + } else { + out = grow_buffer(size); + } + std::uninitialized_copy(s, s + size, out); + return out; } template -template +template void BasicWriter::write_str( - const internal::Arg::StringValue &s, const FormatSpec &spec) -{ - // Check if StrChar is convertible to Char. - internal::CharTraits::convert(StrChar()); - if (spec.type_ && spec.type_ != 's') - internal::report_unknown_type(spec.type_, "string"); - const StrChar *str_value = s.value; - std::size_t str_size = s.size; - if (str_size == 0) - { - if (!str_value) - { - FMT_THROW(FormatError("string pointer is null")); - } + const internal::Arg::StringValue &s, const Spec &spec) { + // Check if StrChar is convertible to Char. + internal::CharTraits::convert(StrChar()); + if (spec.type_ && spec.type_ != 's') + internal::report_unknown_type(spec.type_, "string"); + const StrChar *str_value = s.value; + std::size_t str_size = s.size; + if (str_size == 0) { + if (!str_value) { + FMT_THROW(FormatError("string pointer is null")); } - std::size_t precision = static_cast(spec.precision_); - if (spec.precision_ >= 0 && precision < str_size) - str_size = precision; - write_str(str_value, str_size, spec); + } + std::size_t precision = static_cast(spec.precision_); + if (spec.precision_ >= 0 && precision < str_size) + str_size = precision; + write_str(str_value, str_size, spec); } template typename BasicWriter::CharPtr -BasicWriter::fill_padding( + BasicWriter::fill_padding( CharPtr buffer, unsigned total_size, - std::size_t content_size, wchar_t fill) -{ - std::size_t padding = total_size - content_size; - std::size_t left_padding = padding / 2; - Char fill_char = internal::CharTraits::cast(fill); - std::uninitialized_fill_n(buffer, left_padding, fill_char); - buffer += left_padding; - CharPtr content = buffer; - std::uninitialized_fill_n(buffer + content_size, - padding - left_padding, fill_char); - return content; + std::size_t content_size, wchar_t fill) { + std::size_t padding = total_size - content_size; + std::size_t left_padding = padding / 2; + Char fill_char = internal::CharTraits::cast(fill); + std::uninitialized_fill_n(buffer, left_padding, fill_char); + buffer += left_padding; + CharPtr content = buffer; + std::uninitialized_fill_n(buffer + content_size, + padding - left_padding, fill_char); + return content; } template template typename BasicWriter::CharPtr -BasicWriter::prepare_int_buffer( + BasicWriter::prepare_int_buffer( unsigned num_digits, const Spec &spec, - const char *prefix, unsigned prefix_size) -{ - unsigned width = spec.width(); - Alignment align = spec.align(); - Char fill = internal::CharTraits::cast(spec.fill()); - if (spec.precision() > static_cast(num_digits)) - { - // Octal prefix '0' is counted as a digit, so ignore it if precision - // is specified. - if (prefix_size > 0 && prefix[prefix_size - 1] == '0') - --prefix_size; - unsigned number_size = - prefix_size + internal::to_unsigned(spec.precision()); - AlignSpec subspec(number_size, '0', ALIGN_NUMERIC); - if (number_size >= width) - return prepare_int_buffer(num_digits, subspec, prefix, prefix_size); - buffer_.reserve(width); - unsigned fill_size = width - number_size; - if (align != ALIGN_LEFT) - { - CharPtr p = grow_buffer(fill_size); - std::uninitialized_fill(p, p + fill_size, fill); - } - CharPtr result = prepare_int_buffer( - num_digits, subspec, prefix, prefix_size); - if (align == ALIGN_LEFT) - { - CharPtr p = grow_buffer(fill_size); - std::uninitialized_fill(p, p + fill_size, fill); - } - return result; - } - unsigned size = prefix_size + num_digits; - if (width <= size) - { - CharPtr p = grow_buffer(size); - std::uninitialized_copy(prefix, prefix + prefix_size, p); - return p + size - 1; - } - CharPtr p = grow_buffer(width); - CharPtr end = p + width; - if (align == ALIGN_LEFT) - { - std::uninitialized_copy(prefix, prefix + prefix_size, p); - p += size; - std::uninitialized_fill(p, end, fill); + const char *prefix, unsigned prefix_size) { + unsigned width = spec.width(); + Alignment align = spec.align(); + Char fill = internal::CharTraits::cast(spec.fill()); + if (spec.precision() > static_cast(num_digits)) { + // Octal prefix '0' is counted as a digit, so ignore it if precision + // is specified. + if (prefix_size > 0 && prefix[prefix_size - 1] == '0') + --prefix_size; + unsigned number_size = + prefix_size + internal::to_unsigned(spec.precision()); + AlignSpec subspec(number_size, '0', ALIGN_NUMERIC); + if (number_size >= width) + return prepare_int_buffer(num_digits, subspec, prefix, prefix_size); + buffer_.reserve(width); + unsigned fill_size = width - number_size; + if (align != ALIGN_LEFT) { + CharPtr p = grow_buffer(fill_size); + std::uninitialized_fill(p, p + fill_size, fill); + } + CharPtr result = prepare_int_buffer( + num_digits, subspec, prefix, prefix_size); + if (align == ALIGN_LEFT) { + CharPtr p = grow_buffer(fill_size); + std::uninitialized_fill(p, p + fill_size, fill); } - else if (align == ALIGN_CENTER) - { - p = fill_padding(p, width, size, fill); - std::uninitialized_copy(prefix, prefix + prefix_size, p); - p += size; - } - else - { - if (align == ALIGN_NUMERIC) - { - if (prefix_size != 0) - { - p = std::uninitialized_copy(prefix, prefix + prefix_size, p); - size -= prefix_size; - } - } - else - { - std::uninitialized_copy(prefix, prefix + prefix_size, end - size); - } - std::uninitialized_fill(p, end - size, fill); - p = end; - } - return p - 1; + return result; + } + unsigned size = prefix_size + num_digits; + if (width <= size) { + CharPtr p = grow_buffer(size); + std::uninitialized_copy(prefix, prefix + prefix_size, p); + return p + size - 1; + } + CharPtr p = grow_buffer(width); + CharPtr end = p + width; + if (align == ALIGN_LEFT) { + std::uninitialized_copy(prefix, prefix + prefix_size, p); + p += size; + std::uninitialized_fill(p, end, fill); + } else if (align == ALIGN_CENTER) { + p = fill_padding(p, width, size, fill); + std::uninitialized_copy(prefix, prefix + prefix_size, p); + p += size; + } else { + if (align == ALIGN_NUMERIC) { + if (prefix_size != 0) { + p = std::uninitialized_copy(prefix, prefix + prefix_size, p); + size -= prefix_size; + } + } else { + std::uninitialized_copy(prefix, prefix + prefix_size, end - size); + } + std::uninitialized_fill(p, end - size, fill); + p = end; + } + return p - 1; } template template -void BasicWriter::write_int(T value, Spec spec) -{ - unsigned prefix_size = 0; - typedef typename internal::IntTraits::MainType UnsignedType; - UnsignedType abs_value = static_cast(value); - char prefix[4] = ""; - if (internal::is_negative(value)) - { - prefix[0] = '-'; - ++prefix_size; - abs_value = 0 - abs_value; - } - else if (spec.flag(SIGN_FLAG)) - { - prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' '; - ++prefix_size; - } - switch (spec.type()) - { - case 0: - case 'd': - { - unsigned num_digits = internal::count_digits(abs_value); - CharPtr p = prepare_int_buffer(num_digits, spec, prefix, prefix_size) + 1; - internal::format_decimal(get(p), abs_value, 0); - break; - } - case 'x': - case 'X': - { - UnsignedType n = abs_value; - if (spec.flag(HASH_FLAG)) - { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = spec.type(); - } - unsigned num_digits = 0; - do - { - ++num_digits; - } - while ((n >>= 4) != 0); - Char *p = get(prepare_int_buffer( - num_digits, spec, prefix, prefix_size)); - n = abs_value; - const char *digits = spec.type() == 'x' ? - "0123456789abcdef" : "0123456789ABCDEF"; - do - { - *p-- = digits[n & 0xf]; - } - while ((n >>= 4) != 0); - break; - } - case 'b': - case 'B': - { - UnsignedType n = abs_value; - if (spec.flag(HASH_FLAG)) - { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = spec.type(); - } - unsigned num_digits = 0; - do - { - ++num_digits; - } - while ((n >>= 1) != 0); - Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size)); - n = abs_value; - do - { - *p-- = static_cast('0' + (n & 1)); - } - while ((n >>= 1) != 0); - break; - } - case 'o': - { - UnsignedType n = abs_value; - if (spec.flag(HASH_FLAG)) - prefix[prefix_size++] = '0'; - unsigned num_digits = 0; - do - { - ++num_digits; - } - while ((n >>= 3) != 0); - Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size)); - n = abs_value; - do - { - *p-- = static_cast('0' + (n & 7)); - } - while ((n >>= 3) != 0); - break; - } - case 'n': - { - unsigned num_digits = internal::count_digits(abs_value); - fmt::StringRef sep = ""; -#ifndef ANDROID - sep = internal::thousands_sep(std::localeconv()); +void BasicWriter::write_int(T value, Spec spec) { + unsigned prefix_size = 0; + typedef typename internal::IntTraits::MainType UnsignedType; + UnsignedType abs_value = static_cast(value); + char prefix[4] = ""; + if (internal::is_negative(value)) { + prefix[0] = '-'; + ++prefix_size; + abs_value = 0 - abs_value; + } else if (spec.flag(SIGN_FLAG)) { + prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' '; + ++prefix_size; + } + switch (spec.type()) { + case 0: case 'd': { + unsigned num_digits = internal::count_digits(abs_value); + CharPtr p = prepare_int_buffer(num_digits, spec, prefix, prefix_size) + 1; + internal::format_decimal(get(p), abs_value, 0); + break; + } + case 'x': case 'X': { + UnsignedType n = abs_value; + if (spec.flag(HASH_FLAG)) { + prefix[prefix_size++] = '0'; + prefix[prefix_size++] = spec.type_prefix(); + } + unsigned num_digits = 0; + do { + ++num_digits; + } while ((n >>= 4) != 0); + Char *p = get(prepare_int_buffer( + num_digits, spec, prefix, prefix_size)); + n = abs_value; + const char *digits = spec.type() == 'x' ? + "0123456789abcdef" : "0123456789ABCDEF"; + do { + *p-- = digits[n & 0xf]; + } while ((n >>= 4) != 0); + break; + } + case 'b': case 'B': { + UnsignedType n = abs_value; + if (spec.flag(HASH_FLAG)) { + prefix[prefix_size++] = '0'; + prefix[prefix_size++] = spec.type_prefix(); + } + unsigned num_digits = 0; + do { + ++num_digits; + } while ((n >>= 1) != 0); + Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size)); + n = abs_value; + do { + *p-- = static_cast('0' + (n & 1)); + } while ((n >>= 1) != 0); + break; + } + case 'o': { + UnsignedType n = abs_value; + if (spec.flag(HASH_FLAG)) + prefix[prefix_size++] = '0'; + unsigned num_digits = 0; + do { + ++num_digits; + } while ((n >>= 3) != 0); + Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size)); + n = abs_value; + do { + *p-- = static_cast('0' + (n & 7)); + } while ((n >>= 3) != 0); + break; + } + case 'n': { + unsigned num_digits = internal::count_digits(abs_value); + fmt::StringRef sep = ""; +#if !(defined(ANDROID) || defined(__ANDROID__)) + sep = internal::thousands_sep(std::localeconv()); #endif - unsigned size = static_cast( - num_digits + sep.size() * ((num_digits - 1) / 3)); - CharPtr p = prepare_int_buffer(size, spec, prefix, prefix_size) + 1; - internal::format_decimal(get(p), abs_value, 0, internal::ThousandsSep(sep)); - break; - } - default: - internal::report_unknown_type( - spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer"); - break; - } + unsigned size = static_cast( + num_digits + sep.size() * ((num_digits - 1) / 3)); + CharPtr p = prepare_int_buffer(size, spec, prefix, prefix_size) + 1; + internal::format_decimal(get(p), abs_value, 0, internal::ThousandsSep(sep)); + break; + } + default: + internal::report_unknown_type( + spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer"); + break; + } } template -template -void BasicWriter::write_double(T value, const FormatSpec &spec) -{ - // Check type. - char type = spec.type(); - bool upper = false; - switch (type) - { - case 0: - type = 'g'; - break; - case 'e': - case 'f': - case 'g': - case 'a': - break; - case 'F': +template +void BasicWriter::write_double(T value, const Spec &spec) { + // Check type. + char type = spec.type(); + bool upper = false; + switch (type) { + case 0: + type = 'g'; + break; + case 'e': case 'f': case 'g': case 'a': + break; + case 'F': #if FMT_MSC_VER - // MSVC's printf doesn't support 'F'. - type = 'f'; + // MSVC's printf doesn't support 'F'. + type = 'f'; #endif // Fall through. - case 'E': - case 'G': - case 'A': - upper = true; - break; - default: - internal::report_unknown_type(type, "double"); - break; - } + case 'E': case 'G': case 'A': + upper = true; + break; + default: + internal::report_unknown_type(type, "double"); + break; + } - char sign = 0; - // Use isnegative instead of value < 0 because the latter is always - // false for NaN. - if (internal::FPUtil::isnegative(static_cast(value))) - { - sign = '-'; - value = -value; - } - else if (spec.flag(SIGN_FLAG)) - { - sign = spec.flag(PLUS_FLAG) ? '+' : ' '; - } + char sign = 0; + // Use isnegative instead of value < 0 because the latter is always + // false for NaN. + if (internal::FPUtil::isnegative(static_cast(value))) { + sign = '-'; + value = -value; + } else if (spec.flag(SIGN_FLAG)) { + sign = spec.flag(PLUS_FLAG) ? '+' : ' '; + } - if (internal::FPUtil::isnotanumber(value)) - { - // Format NaN ourselves because sprintf's output is not consistent - // across platforms. - std::size_t nan_size = 4; - const char *nan = upper ? " NAN" : " nan"; - if (!sign) - { - --nan_size; - ++nan; - } - CharPtr out = write_str(nan, nan_size, spec); - if (sign) - *out = sign; - return; + if (internal::FPUtil::isnotanumber(value)) { + // Format NaN ourselves because sprintf's output is not consistent + // across platforms. + std::size_t nan_size = 4; + const char *nan = upper ? " NAN" : " nan"; + if (!sign) { + --nan_size; + ++nan; } + CharPtr out = write_str(nan, nan_size, spec); + if (sign) + *out = sign; + return; + } - if (internal::FPUtil::isinfinity(value)) - { - // Format infinity ourselves because sprintf's output is not consistent - // across platforms. - std::size_t inf_size = 4; - const char *inf = upper ? " INF" : " inf"; - if (!sign) - { - --inf_size; - ++inf; - } - CharPtr out = write_str(inf, inf_size, spec); - if (sign) - *out = sign; - return; + if (internal::FPUtil::isinfinity(value)) { + // Format infinity ourselves because sprintf's output is not consistent + // across platforms. + std::size_t inf_size = 4; + const char *inf = upper ? " INF" : " inf"; + if (!sign) { + --inf_size; + ++inf; } - - std::size_t offset = buffer_.size(); - unsigned width = spec.width(); + CharPtr out = write_str(inf, inf_size, spec); if (sign) - { - buffer_.reserve(buffer_.size() + (width > 1u ? width : 1u)); - if (width > 0) - --width; - ++offset; - } + *out = sign; + return; + } - // Build format string. - enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg - Char format[MAX_FORMAT_SIZE]; - Char *format_ptr = format; - *format_ptr++ = '%'; - unsigned width_for_sprintf = width; - if (spec.flag(HASH_FLAG)) - *format_ptr++ = '#'; - if (spec.align() == ALIGN_CENTER) - { - width_for_sprintf = 0; - } - else - { - if (spec.align() == ALIGN_LEFT) - *format_ptr++ = '-'; - if (width != 0) - *format_ptr++ = '*'; - } - if (spec.precision() >= 0) - { - *format_ptr++ = '.'; - *format_ptr++ = '*'; - } + std::size_t offset = buffer_.size(); + unsigned width = spec.width(); + if (sign) { + buffer_.reserve(buffer_.size() + (width > 1u ? width : 1u)); + if (width > 0) + --width; + ++offset; + } + + // Build format string. + enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg + Char format[MAX_FORMAT_SIZE]; + Char *format_ptr = format; + *format_ptr++ = '%'; + unsigned width_for_sprintf = width; + if (spec.flag(HASH_FLAG)) + *format_ptr++ = '#'; + if (spec.align() == ALIGN_CENTER) { + width_for_sprintf = 0; + } else { + if (spec.align() == ALIGN_LEFT) + *format_ptr++ = '-'; + if (width != 0) + *format_ptr++ = '*'; + } + if (spec.precision() >= 0) { + *format_ptr++ = '.'; + *format_ptr++ = '*'; + } - append_float_length(format_ptr, value); - *format_ptr++ = type; - *format_ptr = '\0'; + append_float_length(format_ptr, value); + *format_ptr++ = type; + *format_ptr = '\0'; - // Format using snprintf. - Char fill = internal::CharTraits::cast(spec.fill()); - unsigned n = 0; - Char *start = 0; - for (;;) - { - std::size_t buffer_size = buffer_.capacity() - offset; + // Format using snprintf. + Char fill = internal::CharTraits::cast(spec.fill()); + unsigned n = 0; + Char *start = FMT_NULL; + for (;;) { + std::size_t buffer_size = buffer_.capacity() - offset; #if FMT_MSC_VER - // MSVC's vsnprintf_s doesn't work with zero size, so reserve - // space for at least one extra character to make the size non-zero. - // Note that the buffer's capacity will increase by more than 1. - if (buffer_size == 0) - { - buffer_.reserve(offset + 1); - buffer_size = buffer_.capacity() - offset; - } + // MSVC's vsnprintf_s doesn't work with zero size, so reserve + // space for at least one extra character to make the size non-zero. + // Note that the buffer's capacity will increase by more than 1. + if (buffer_size == 0) { + buffer_.reserve(offset + 1); + buffer_size = buffer_.capacity() - offset; + } #endif - start = &buffer_[offset]; - int result = internal::CharTraits::format_float( - start, buffer_size, format, width_for_sprintf, spec.precision(), value); - if (result >= 0) - { - n = internal::to_unsigned(result); - if (offset + n < buffer_.capacity()) - break; // The buffer is large enough - continue with formatting. - buffer_.reserve(offset + n + 1); - } - else - { - // If result is negative we ask to increase the capacity by at least 1, - // but as std::vector, the buffer grows exponentially. - buffer_.reserve(buffer_.capacity() + 1); - } + start = &buffer_[offset]; + int result = internal::CharTraits::format_float( + start, buffer_size, format, width_for_sprintf, spec.precision(), value); + if (result >= 0) { + n = internal::to_unsigned(result); + if (offset + n < buffer_.capacity()) + break; // The buffer is large enough - continue with formatting. + buffer_.reserve(offset + n + 1); + } else { + // If result is negative we ask to increase the capacity by at least 1, + // but as std::vector, the buffer grows exponentially. + buffer_.reserve(buffer_.capacity() + 1); } + } + if (sign) { + if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) || + *start != ' ') { + *(start - 1) = sign; + sign = 0; + } else { + *(start - 1) = fill; + } + ++n; + } + if (spec.align() == ALIGN_CENTER && spec.width() > n) { + width = spec.width(); + CharPtr p = grow_buffer(width); + std::memmove(get(p) + (width - n) / 2, get(p), n * sizeof(Char)); + fill_padding(p, spec.width(), n, fill); + return; + } + if (spec.fill() != ' ' || sign) { + while (*start == ' ') + *start++ = fill; if (sign) - { - if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) || - *start != ' ') - { - *(start - 1) = sign; - sign = 0; - } - else - { - *(start - 1) = fill; - } - ++n; - } - if (spec.align() == ALIGN_CENTER && spec.width() > n) - { - width = spec.width(); - CharPtr p = grow_buffer(width); - std::memmove(get(p) + (width - n) / 2, get(p), n * sizeof(Char)); - fill_padding(p, spec.width(), n, fill); - return; - } - if (spec.fill() != ' ' || sign) - { - while (*start == ' ') - *start++ = fill; - if (sign) - *(start - 1) = sign; - } - grow_buffer(n); + *(start - 1) = sign; + } + grow_buffer(n); } /** @@ -3521,37 +3133,34 @@ void BasicWriter::write_double(T value, const FormatSpec &spec) \endrst */ template > -class BasicMemoryWriter : public BasicWriter -{ -private: - internal::MemoryBuffer buffer_; +class BasicMemoryWriter : public BasicWriter { + private: + internal::MemoryBuffer buffer_; -public: - explicit BasicMemoryWriter(const Allocator& alloc = Allocator()) - : BasicWriter(buffer_), buffer_(alloc) {} + public: + explicit BasicMemoryWriter(const Allocator& alloc = Allocator()) + : BasicWriter(buffer_), buffer_(alloc) {} #if FMT_USE_RVALUE_REFERENCES - /** - \rst - Constructs a :class:`fmt::BasicMemoryWriter` object moving the content - of the other object to it. - \endrst - */ - BasicMemoryWriter(BasicMemoryWriter &&other) - : BasicWriter(buffer_), buffer_(std::move(other.buffer_)) - { - } + /** + \rst + Constructs a :class:`fmt::BasicMemoryWriter` object moving the content + of the other object to it. + \endrst + */ + BasicMemoryWriter(BasicMemoryWriter &&other) + : BasicWriter(buffer_), buffer_(std::move(other.buffer_)) { + } - /** - \rst - Moves the content of the other ``BasicMemoryWriter`` object to this one. - \endrst - */ - BasicMemoryWriter &operator=(BasicMemoryWriter &&other) - { - buffer_ = std::move(other.buffer_); - return *this; - } + /** + \rst + Moves the content of the other ``BasicMemoryWriter`` object to this one. + \endrst + */ + BasicMemoryWriter &operator=(BasicMemoryWriter &&other) { + buffer_ = std::move(other.buffer_); + return *this; + } #endif }; @@ -3579,30 +3188,29 @@ typedef BasicMemoryWriter WMemoryWriter; \endrst */ template -class BasicArrayWriter : public BasicWriter -{ -private: - internal::FixedBuffer buffer_; - -public: - /** - \rst - Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the - given size. - \endrst - */ - BasicArrayWriter(Char *array, std::size_t size) - : BasicWriter(buffer_), buffer_(array, size) {} - - /** - \rst - Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the - size known at compile time. - \endrst - */ - template - explicit BasicArrayWriter(Char (&array)[SIZE]) - : BasicWriter(buffer_), buffer_(array, SIZE) {} +class BasicArrayWriter : public BasicWriter { + private: + internal::FixedBuffer buffer_; + + public: + /** + \rst + Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the + given size. + \endrst + */ + BasicArrayWriter(Char *array, std::size_t size) + : BasicWriter(buffer_), buffer_(array, size) {} + + /** + \rst + Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the + size known at compile time. + \endrst + */ + template + explicit BasicArrayWriter(Char (&array)[SIZE]) + : BasicWriter(buffer_), buffer_(array, SIZE) {} }; typedef BasicArrayWriter ArrayWriter; @@ -3616,45 +3224,43 @@ FMT_API void report_system_error(int error_code, #if FMT_USE_WINDOWS_H /** A Windows error. */ -class WindowsError : public SystemError -{ -private: - FMT_API void init(int error_code, CStringRef format_str, ArgList args); - -public: - /** - \rst - Constructs a :class:`fmt::WindowsError` object with the description - of the form - - .. parsed-literal:: - **: ** - - where ** is the formatted message and ** is the - system message corresponding to the error code. - *error_code* is a Windows error code as given by ``GetLastError``. - If *error_code* is not a valid error code such as -1, the system message - will look like "error -1". - - **Example**:: - - // This throws a WindowsError with the description - // cannot open file 'madeup': The system cannot find the file specified. - // or similar (system message may vary). - const char *filename = "madeup"; - LPOFSTRUCT of = LPOFSTRUCT(); - HFILE file = OpenFile(filename, &of, OF_READ); - if (file == HFILE_ERROR) { - throw fmt::WindowsError(GetLastError(), - "cannot open file '{}'", filename); - } - \endrst - */ - WindowsError(int error_code, CStringRef message) - { - init(error_code, message, ArgList()); - } - FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef) +class WindowsError : public SystemError { + private: + FMT_API void init(int error_code, CStringRef format_str, ArgList args); + + public: + /** + \rst + Constructs a :class:`fmt::WindowsError` object with the description + of the form + + .. parsed-literal:: + **: ** + + where ** is the formatted message and ** is the + system message corresponding to the error code. + *error_code* is a Windows error code as given by ``GetLastError``. + If *error_code* is not a valid error code such as -1, the system message + will look like "error -1". + + **Example**:: + + // This throws a WindowsError with the description + // cannot open file 'madeup': The system cannot find the file specified. + // or similar (system message may vary). + const char *filename = "madeup"; + LPOFSTRUCT of = LPOFSTRUCT(); + HFILE file = OpenFile(filename, &of, OF_READ); + if (file == HFILE_ERROR) { + throw fmt::WindowsError(GetLastError(), + "cannot open file '{}'", filename); + } + \endrst + */ + WindowsError(int error_code, CStringRef message) { + init(error_code, message, ArgList()); + } + FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef) }; // Reports a Windows error without throwing an exception. @@ -3683,18 +3289,16 @@ FMT_API void print_colored(Color c, CStringRef format, ArgList args); std::string message = format("The answer is {}", 42); \endrst */ -inline std::string format(CStringRef format_str, ArgList args) -{ - MemoryWriter w; - w.write(format_str, args); - return w.str(); +inline std::string format(CStringRef format_str, ArgList args) { + MemoryWriter w; + w.write(format_str, args); + return w.str(); } -inline std::wstring format(WCStringRef format_str, ArgList args) -{ - WMemoryWriter w; - w.write(format_str, args); - return w.str(); +inline std::wstring format(WCStringRef format_str, ArgList args) { + WMemoryWriter w; + w.write(format_str, args); + return w.str(); } /** @@ -3719,189 +3323,109 @@ FMT_API void print(std::FILE *f, CStringRef format_str, ArgList args); */ FMT_API void print(CStringRef format_str, ArgList args); -template -void printf(BasicWriter &w, BasicCStringRef format, ArgList args) -{ - internal::PrintfFormatter(args).format(w, format); -} - -/** - \rst - Formats arguments and returns the result as a string. - - **Example**:: - - std::string message = fmt::sprintf("The answer is %d", 42); - \endrst -*/ -inline std::string sprintf(CStringRef format, ArgList args) -{ - MemoryWriter w; - printf(w, format, args); - return w.str(); -} - -inline std::wstring sprintf(WCStringRef format, ArgList args) -{ - WMemoryWriter w; - printf(w, format, args); - return w.str(); -} - -/** - \rst - Prints formatted data to the file *f*. - - **Example**:: - - fmt::fprintf(stderr, "Don't %s!", "panic"); - \endrst - */ -FMT_API int fprintf(std::FILE *f, CStringRef format, ArgList args); - -/** - \rst - Prints formatted data to ``stdout``. - - **Example**:: - - fmt::printf("Elapsed time: %.2f seconds", 1.23); - \endrst - */ -inline int printf(CStringRef format, ArgList args) -{ - return fprintf(stdout, format, args); -} - /** Fast integer formatter. */ -class FormatInt -{ -private: - // Buffer should be large enough to hold all digits (digits10 + 1), - // a sign and a null character. - enum {BUFFER_SIZE = std::numeric_limits::digits10 + 3}; - mutable char buffer_[BUFFER_SIZE]; - char *str_; - - // Formats value in reverse and returns the number of digits. - char *format_decimal(ULongLong value) - { - char *buffer_end = buffer_ + BUFFER_SIZE - 1; - while (value >= 100) - { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast((value % 100) * 2); - value /= 100; - *--buffer_end = internal::Data::DIGITS[index + 1]; - *--buffer_end = internal::Data::DIGITS[index]; - } - if (value < 10) - { - *--buffer_end = static_cast('0' + value); - return buffer_end; - } - unsigned index = static_cast(value * 2); - *--buffer_end = internal::Data::DIGITS[index + 1]; - *--buffer_end = internal::Data::DIGITS[index]; - return buffer_end; - } - - void FormatSigned(LongLong value) - { - ULongLong abs_value = static_cast(value); - bool negative = value < 0; - if (negative) - abs_value = 0 - abs_value; - str_ = format_decimal(abs_value); - if (negative) - *--str_ = '-'; +class FormatInt { + private: + // Buffer should be large enough to hold all digits (digits10 + 1), + // a sign and a null character. + enum {BUFFER_SIZE = std::numeric_limits::digits10 + 3}; + mutable char buffer_[BUFFER_SIZE]; + char *str_; + + // Formats value in reverse and returns the number of digits. + char *format_decimal(ULongLong value) { + char *buffer_end = buffer_ + BUFFER_SIZE - 1; + while (value >= 100) { + // Integer division is slow so do it for a group of two digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + unsigned index = static_cast((value % 100) * 2); + value /= 100; + *--buffer_end = internal::Data::DIGITS[index + 1]; + *--buffer_end = internal::Data::DIGITS[index]; + } + if (value < 10) { + *--buffer_end = static_cast('0' + value); + return buffer_end; } + unsigned index = static_cast(value * 2); + *--buffer_end = internal::Data::DIGITS[index + 1]; + *--buffer_end = internal::Data::DIGITS[index]; + return buffer_end; + } -public: - explicit FormatInt(int value) - { - FormatSigned(value); - } - explicit FormatInt(long value) - { - FormatSigned(value); - } - explicit FormatInt(LongLong value) - { - FormatSigned(value); - } - explicit FormatInt(unsigned value) : str_(format_decimal(value)) {} - explicit FormatInt(unsigned long value) : str_(format_decimal(value)) {} - explicit FormatInt(ULongLong value) : str_(format_decimal(value)) {} - - /** Returns the number of characters written to the output buffer. */ - std::size_t size() const - { - return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1); - } + void FormatSigned(LongLong value) { + ULongLong abs_value = static_cast(value); + bool negative = value < 0; + if (negative) + abs_value = 0 - abs_value; + str_ = format_decimal(abs_value); + if (negative) + *--str_ = '-'; + } - /** - Returns a pointer to the output buffer content. No terminating null - character is appended. - */ - const char *data() const - { - return str_; - } + public: + explicit FormatInt(int value) { FormatSigned(value); } + explicit FormatInt(long value) { FormatSigned(value); } + explicit FormatInt(LongLong value) { FormatSigned(value); } + explicit FormatInt(unsigned value) : str_(format_decimal(value)) {} + explicit FormatInt(unsigned long value) : str_(format_decimal(value)) {} + explicit FormatInt(ULongLong value) : str_(format_decimal(value)) {} + + /** Returns the number of characters written to the output buffer. */ + std::size_t size() const { + return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1); + } - /** - Returns a pointer to the output buffer content with terminating null - character appended. - */ - const char *c_str() const - { - buffer_[BUFFER_SIZE - 1] = '\0'; - return str_; - } + /** + Returns a pointer to the output buffer content. No terminating null + character is appended. + */ + const char *data() const { return str_; } + + /** + Returns a pointer to the output buffer content with terminating null + character appended. + */ + const char *c_str() const { + buffer_[BUFFER_SIZE - 1] = '\0'; + return str_; + } - /** - \rst - Returns the content of the output buffer as an ``std::string``. - \endrst - */ - std::string str() const - { - return std::string(str_, size()); - } + /** + \rst + Returns the content of the output buffer as an ``std::string``. + \endrst + */ + std::string str() const { return std::string(str_, size()); } }; // Formats a decimal integer value writing into buffer and returns // a pointer to the end of the formatted string. This function doesn't // write a terminating null character. template -inline void format_decimal(char *&buffer, T value) -{ - typedef typename internal::IntTraits::MainType MainType; - MainType abs_value = static_cast(value); - if (internal::is_negative(value)) - { - *buffer++ = '-'; - abs_value = 0 - abs_value; - } - if (abs_value < 100) - { - if (abs_value < 10) - { - *buffer++ = static_cast('0' + abs_value); - return; - } - unsigned index = static_cast(abs_value * 2); - *buffer++ = internal::Data::DIGITS[index]; - *buffer++ = internal::Data::DIGITS[index + 1]; - return; - } - unsigned num_digits = internal::count_digits(abs_value); - internal::format_decimal(buffer, abs_value, num_digits); - buffer += num_digits; +inline void format_decimal(char *&buffer, T value) { + typedef typename internal::IntTraits::MainType MainType; + MainType abs_value = static_cast(value); + if (internal::is_negative(value)) { + *buffer++ = '-'; + abs_value = 0 - abs_value; + } + if (abs_value < 100) { + if (abs_value < 10) { + *buffer++ = static_cast('0' + abs_value); + return; + } + unsigned index = static_cast(abs_value * 2); + *buffer++ = internal::Data::DIGITS[index]; + *buffer++ = internal::Data::DIGITS[index + 1]; + return; + } + unsigned num_digits = internal::count_digits(abs_value); + internal::format_decimal(buffer, abs_value, num_digits); + buffer += num_digits; } /** @@ -3915,15 +3439,13 @@ inline void format_decimal(char *&buffer, T value) \endrst */ template -inline internal::NamedArg arg(StringRef name, const T &arg) -{ - return internal::NamedArg(name, arg); +inline internal::NamedArgWithType arg(StringRef name, const T &arg) { + return internal::NamedArgWithType(name, arg); } template -inline internal::NamedArg arg(WStringRef name, const T &arg) -{ - return internal::NamedArg(name, arg); +inline internal::NamedArgWithType arg(WStringRef name, const T &arg) { + return internal::NamedArgWithType(name, arg); } // The following two functions are deleted intentionally to disable @@ -3952,7 +3474,6 @@ void arg(WStringRef, const internal::NamedArg&) FMT_DELETED_OR_UNDEFINED; #define FMT_ARG_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N #define FMT_RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 -#define FMT_CONCAT(a, b) a##b #define FMT_FOR_EACH_(N, f, ...) \ FMT_EXPAND(FMT_CONCAT(FMT_FOR_EACH, N)(f, __VA_ARGS__)) #define FMT_FOR_EACH(f, ...) \ @@ -4061,380 +3582,382 @@ void arg(WStringRef, const internal::NamedArg&) FMT_DELETED_OR_UNDEFINED; #define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__) -namespace fmt -{ +namespace fmt { FMT_VARIADIC(std::string, format, CStringRef) FMT_VARIADIC_W(std::wstring, format, WCStringRef) FMT_VARIADIC(void, print, CStringRef) FMT_VARIADIC(void, print, std::FILE *, CStringRef) - FMT_VARIADIC(void, print_colored, Color, CStringRef) -FMT_VARIADIC(std::string, sprintf, CStringRef) -FMT_VARIADIC_W(std::wstring, sprintf, WCStringRef) -FMT_VARIADIC(int, printf, CStringRef) -FMT_VARIADIC(int, fprintf, std::FILE *, CStringRef) -namespace internal -{ +namespace internal { template -inline bool is_name_start(Char c) -{ - return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; +inline bool is_name_start(Char c) { + return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; } // Parses an unsigned integer advancing s to the end of the parsed input. // This function assumes that the first character of s is a digit. template -unsigned parse_nonnegative_int(const Char *&s) -{ - assert('0' <= *s && *s <= '9'); - unsigned value = 0; - do - { - unsigned new_value = value * 10 + (*s++ - '0'); - // Check if value wrapped around. - if (new_value < value) - { - value = (std::numeric_limits::max)(); - break; - } - value = new_value; - } - while ('0' <= *s && *s <= '9'); - // Convert to unsigned to prevent a warning. - unsigned max_int = (std::numeric_limits::max)(); - if (value > max_int) - FMT_THROW(FormatError("number is too big")); - return value; +unsigned parse_nonnegative_int(const Char *&s) { + assert('0' <= *s && *s <= '9'); + unsigned value = 0; + do { + unsigned new_value = value * 10 + (*s++ - '0'); + // Check if value wrapped around. + if (new_value < value) { + value = (std::numeric_limits::max)(); + break; + } + value = new_value; + } while ('0' <= *s && *s <= '9'); + // Convert to unsigned to prevent a warning. + unsigned max_int = (std::numeric_limits::max)(); + if (value > max_int) + FMT_THROW(FormatError("number is too big")); + return value; } -inline void require_numeric_argument(const Arg &arg, char spec) -{ - if (arg.type > Arg::LAST_NUMERIC_TYPE) - { - std::string message = - fmt::format("format specifier '{}' requires numeric argument", spec); - FMT_THROW(fmt::FormatError(message)); - } +inline void require_numeric_argument(const Arg &arg, char spec) { + if (arg.type > Arg::LAST_NUMERIC_TYPE) { + std::string message = + fmt::format("format specifier '{}' requires numeric argument", spec); + FMT_THROW(fmt::FormatError(message)); + } } template -void check_sign(const Char *&s, const Arg &arg) -{ - char sign = static_cast(*s); - require_numeric_argument(arg, sign); - if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG) - { - FMT_THROW(FormatError(fmt::format( - "format specifier '{}' requires signed argument", sign))); - } - ++s; +void check_sign(const Char *&s, const Arg &arg) { + char sign = static_cast(*s); + require_numeric_argument(arg, sign); + if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG) { + FMT_THROW(FormatError(fmt::format( + "format specifier '{}' requires signed argument", sign))); + } + ++s; } } // namespace internal template inline internal::Arg BasicFormatter::get_arg( - BasicStringRef arg_name, const char *&error) -{ - if (check_no_auto_index(error)) - { - map_.init(args()); - const internal::Arg *arg = map_.find(arg_name); - if (arg) - return *arg; - error = "argument not found"; - } - return internal::Arg(); + BasicStringRef arg_name, const char *&error) { + if (check_no_auto_index(error)) { + map_.init(args()); + const internal::Arg *arg = map_.find(arg_name); + if (arg) + return *arg; + error = "argument not found"; + } + return internal::Arg(); } template -inline internal::Arg BasicFormatter::parse_arg_index(const Char *&s) -{ - const char *error = 0; - internal::Arg arg = *s < '0' || *s > '9' ? - next_arg(error) : get_arg(internal::parse_nonnegative_int(s), error); - if (error) - { - FMT_THROW(FormatError( - *s != '}' && *s != ':' ? "invalid format string" : error)); - } - return arg; +inline internal::Arg BasicFormatter::parse_arg_index(const Char *&s) { + const char *error = FMT_NULL; + internal::Arg arg = *s < '0' || *s > '9' ? + next_arg(error) : get_arg(internal::parse_nonnegative_int(s), error); + if (error) { + FMT_THROW(FormatError( + *s != '}' && *s != ':' ? "invalid format string" : error)); + } + return arg; } template -inline internal::Arg BasicFormatter::parse_arg_name(const Char *&s) -{ - assert(internal::is_name_start(*s)); - const Char *start = s; - Char c; - do - { - c = *++s; - } - while (internal::is_name_start(c) || ('0' <= c && c <= '9')); - const char *error = 0; - internal::Arg arg = get_arg(BasicStringRef(start, s - start), error); - if (error) - FMT_THROW(FormatError(error)); - return arg; +inline internal::Arg BasicFormatter::parse_arg_name(const Char *&s) { + assert(internal::is_name_start(*s)); + const Char *start = s; + Char c; + do { + c = *++s; + } while (internal::is_name_start(c) || ('0' <= c && c <= '9')); + const char *error = FMT_NULL; + internal::Arg arg = get_arg(BasicStringRef(start, s - start), error); + if (error) + FMT_THROW(FormatError(error)); + return arg; } template const Char *BasicFormatter::format( - const Char *&format_str, const internal::Arg &arg) -{ - using internal::Arg; - const Char *s = format_str; - FormatSpec spec; - if (*s == ':') - { - if (arg.type == Arg::CUSTOM) - { - arg.custom.format(this, arg.custom.value, &s); - return s; + const Char *&format_str, const internal::Arg &arg) { + using internal::Arg; + const Char *s = format_str; + typename ArgFormatter::SpecType spec; + if (*s == ':') { + if (arg.type == Arg::CUSTOM) { + arg.custom.format(this, arg.custom.value, &s); + return s; + } + ++s; + // Parse fill and alignment. + if (Char c = *s) { + const Char *p = s + 1; + spec.align_ = ALIGN_DEFAULT; + do { + switch (*p) { + case '<': + spec.align_ = ALIGN_LEFT; + break; + case '>': + spec.align_ = ALIGN_RIGHT; + break; + case '=': + spec.align_ = ALIGN_NUMERIC; + break; + case '^': + spec.align_ = ALIGN_CENTER; + break; } - ++s; - // Parse fill and alignment. - if (Char c = *s) - { - const Char *p = s + 1; - spec.align_ = ALIGN_DEFAULT; - do - { - switch (*p) - { - case '<': - spec.align_ = ALIGN_LEFT; - break; - case '>': - spec.align_ = ALIGN_RIGHT; - break; - case '=': - spec.align_ = ALIGN_NUMERIC; - break; - case '^': - spec.align_ = ALIGN_CENTER; - break; - } - if (spec.align_ != ALIGN_DEFAULT) - { - if (p != s) - { - if (c == '}') break; - if (c == '{') - FMT_THROW(FormatError("invalid fill character '{'")); - s += 2; - spec.fill_ = c; - } - else ++s; - if (spec.align_ == ALIGN_NUMERIC) - require_numeric_argument(arg, '='); - break; - } - } - while (--p >= s); + if (spec.align_ != ALIGN_DEFAULT) { + if (p != s) { + if (c == '}') break; + if (c == '{') + FMT_THROW(FormatError("invalid fill character '{'")); + s += 2; + spec.fill_ = c; + } else ++s; + if (spec.align_ == ALIGN_NUMERIC) + require_numeric_argument(arg, '='); + break; } + } while (--p >= s); + } + + // Parse sign. + switch (*s) { + case '+': + check_sign(s, arg); + spec.flags_ |= SIGN_FLAG | PLUS_FLAG; + break; + case '-': + check_sign(s, arg); + spec.flags_ |= MINUS_FLAG; + break; + case ' ': + check_sign(s, arg); + spec.flags_ |= SIGN_FLAG; + break; + } - // Parse sign. - switch (*s) - { - case '+': - check_sign(s, arg); - spec.flags_ |= SIGN_FLAG | PLUS_FLAG; + if (*s == '#') { + require_numeric_argument(arg, '#'); + spec.flags_ |= HASH_FLAG; + ++s; + } + + // Parse zero flag. + if (*s == '0') { + require_numeric_argument(arg, '0'); + spec.align_ = ALIGN_NUMERIC; + spec.fill_ = '0'; + ++s; + } + + // Parse width. + if ('0' <= *s && *s <= '9') { + spec.width_ = internal::parse_nonnegative_int(s); + } else if (*s == '{') { + ++s; + Arg width_arg = internal::is_name_start(*s) ? + parse_arg_name(s) : parse_arg_index(s); + if (*s++ != '}') + FMT_THROW(FormatError("invalid format string")); + ULongLong value = 0; + switch (width_arg.type) { + case Arg::INT: + if (width_arg.int_value < 0) + FMT_THROW(FormatError("negative width")); + value = width_arg.int_value; + break; + case Arg::UINT: + value = width_arg.uint_value; + break; + case Arg::LONG_LONG: + if (width_arg.long_long_value < 0) + FMT_THROW(FormatError("negative width")); + value = width_arg.long_long_value; + break; + case Arg::ULONG_LONG: + value = width_arg.ulong_long_value; + break; + default: + FMT_THROW(FormatError("width is not integer")); + } + if (value > (std::numeric_limits::max)()) + FMT_THROW(FormatError("number is too big")); + spec.width_ = static_cast(value); + } + + // Parse precision. + if (*s == '.') { + ++s; + spec.precision_ = 0; + if ('0' <= *s && *s <= '9') { + spec.precision_ = internal::parse_nonnegative_int(s); + } else if (*s == '{') { + ++s; + Arg precision_arg = internal::is_name_start(*s) ? + parse_arg_name(s) : parse_arg_index(s); + if (*s++ != '}') + FMT_THROW(FormatError("invalid format string")); + ULongLong value = 0; + switch (precision_arg.type) { + case Arg::INT: + if (precision_arg.int_value < 0) + FMT_THROW(FormatError("negative precision")); + value = precision_arg.int_value; + break; + case Arg::UINT: + value = precision_arg.uint_value; break; - case '-': - check_sign(s, arg); - spec.flags_ |= MINUS_FLAG; + case Arg::LONG_LONG: + if (precision_arg.long_long_value < 0) + FMT_THROW(FormatError("negative precision")); + value = precision_arg.long_long_value; break; - case ' ': - check_sign(s, arg); - spec.flags_ |= SIGN_FLAG; + case Arg::ULONG_LONG: + value = precision_arg.ulong_long_value; break; + default: + FMT_THROW(FormatError("precision is not integer")); } + if (value > (std::numeric_limits::max)()) + FMT_THROW(FormatError("number is too big")); + spec.precision_ = static_cast(value); + } else { + FMT_THROW(FormatError("missing precision specifier")); + } + if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER) { + FMT_THROW(FormatError( + fmt::format("precision not allowed in {} format specifier", + arg.type == Arg::POINTER ? "pointer" : "integer"))); + } + } - if (*s == '#') - { - require_numeric_argument(arg, '#'); - spec.flags_ |= HASH_FLAG; - ++s; - } + // Parse type. + if (*s != '}' && *s) + spec.type_ = static_cast(*s++); + } - // Parse zero flag. - if (*s == '0') - { - require_numeric_argument(arg, '0'); - spec.align_ = ALIGN_NUMERIC; - spec.fill_ = '0'; - ++s; - } + if (*s++ != '}') + FMT_THROW(FormatError("missing '}' in format string")); - // Parse width. - if ('0' <= *s && *s <= '9') - { - spec.width_ = internal::parse_nonnegative_int(s); - } - else if (*s == '{') - { - ++s; - Arg width_arg = internal::is_name_start(*s) ? - parse_arg_name(s) : parse_arg_index(s); - if (*s++ != '}') - FMT_THROW(FormatError("invalid format string")); - ULongLong value = 0; - switch (width_arg.type) - { - case Arg::INT: - if (width_arg.int_value < 0) - FMT_THROW(FormatError("negative width")); - value = width_arg.int_value; - break; - case Arg::UINT: - value = width_arg.uint_value; - break; - case Arg::LONG_LONG: - if (width_arg.long_long_value < 0) - FMT_THROW(FormatError("negative width")); - value = width_arg.long_long_value; - break; - case Arg::ULONG_LONG: - value = width_arg.ulong_long_value; - break; - default: - FMT_THROW(FormatError("width is not integer")); - } - if (value > (std::numeric_limits::max)()) - FMT_THROW(FormatError("number is too big")); - spec.width_ = static_cast(value); - } + // Format argument. + ArgFormatter(*this, spec, s - 1).visit(arg); + return s; +} - // Parse precision. - if (*s == '.') - { - ++s; - spec.precision_ = 0; - if ('0' <= *s && *s <= '9') - { - spec.precision_ = internal::parse_nonnegative_int(s); - } - else if (*s == '{') - { - ++s; - Arg precision_arg = internal::is_name_start(*s) ? - parse_arg_name(s) : parse_arg_index(s); - if (*s++ != '}') - FMT_THROW(FormatError("invalid format string")); - ULongLong value = 0; - switch (precision_arg.type) - { - case Arg::INT: - if (precision_arg.int_value < 0) - FMT_THROW(FormatError("negative precision")); - value = precision_arg.int_value; - break; - case Arg::UINT: - value = precision_arg.uint_value; - break; - case Arg::LONG_LONG: - if (precision_arg.long_long_value < 0) - FMT_THROW(FormatError("negative precision")); - value = precision_arg.long_long_value; - break; - case Arg::ULONG_LONG: - value = precision_arg.ulong_long_value; - break; - default: - FMT_THROW(FormatError("precision is not integer")); - } - if (value > (std::numeric_limits::max)()) - FMT_THROW(FormatError("number is too big")); - spec.precision_ = static_cast(value); - } - else - { - FMT_THROW(FormatError("missing precision specifier")); - } - if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER) - { - FMT_THROW(FormatError( - fmt::format("precision not allowed in {} format specifier", - arg.type == Arg::POINTER ? "pointer" : "integer"))); - } - } +template +void BasicFormatter::format(BasicCStringRef format_str) { + const Char *s = format_str.c_str(); + const Char *start = s; + while (*s) { + Char c = *s++; + if (c != '{' && c != '}') continue; + if (*s == c) { + write(writer_, start, s); + start = ++s; + continue; + } + if (c == '}') + FMT_THROW(FormatError("unmatched '}' in format string")); + write(writer_, start, s - 1); + internal::Arg arg = internal::is_name_start(*s) ? + parse_arg_name(s) : parse_arg_index(s); + start = s = format(s, arg); + } + write(writer_, start, s); +} - // Parse type. - if (*s != '}' && *s) - spec.type_ = static_cast(*s++); - } +template +struct ArgJoin { + It first; + It last; + BasicCStringRef sep; - if (*s++ != '}') - FMT_THROW(FormatError("missing '}' in format string")); + ArgJoin(It first, It last, const BasicCStringRef& sep) : + first(first), + last(last), + sep(sep) {} +}; - // Format argument. - ArgFormatter(*this, spec, s - 1).visit(arg); - return s; +template +ArgJoin join(It first, It last, const BasicCStringRef& sep) { + return ArgJoin(first, last, sep); } -template -void BasicFormatter::format(BasicCStringRef format_str) -{ - const Char *s = format_str.c_str(); - const Char *start = s; - while (*s) - { - Char c = *s++; - if (c != '{' && c != '}') continue; - if (*s == c) - { - write(writer_, start, s); - start = ++s; - continue; - } - if (c == '}') - FMT_THROW(FormatError("unmatched '}' in format string")); - write(writer_, start, s - 1); - internal::Arg arg = internal::is_name_start(*s) ? - parse_arg_name(s) : parse_arg_index(s); - start = s = format(s, arg); +template +ArgJoin join(It first, It last, const BasicCStringRef& sep) { + return ArgJoin(first, last, sep); +} + +#if FMT_HAS_GXX_CXX11 +template +auto join(const Range& range, const BasicCStringRef& sep) + -> ArgJoin { + return join(std::begin(range), std::end(range), sep); +} + +template +auto join(const Range& range, const BasicCStringRef& sep) + -> ArgJoin { + return join(std::begin(range), std::end(range), sep); +} +#endif + +template +void format_arg(fmt::BasicFormatter &f, + const Char *&format_str, const ArgJoin& e) { + const Char* end = format_str; + if (*end == ':') + ++end; + while (*end && *end != '}') + ++end; + if (*end != '}') + FMT_THROW(FormatError("missing '}' in format string")); + + It it = e.first; + if (it != e.last) { + const Char* save = format_str; + f.format(format_str, internal::MakeArg >(*it++)); + while (it != e.last) { + f.writer().write(e.sep); + format_str = save; + f.format(format_str, internal::MakeArg >(*it++)); } - write(writer_, start, s); + } + format_str = end + 1; } } // namespace fmt #if FMT_USE_USER_DEFINED_LITERALS -namespace fmt -{ -namespace internal -{ +namespace fmt { +namespace internal { template -struct UdlFormat -{ - const Char *str; +struct UdlFormat { + const Char *str; - template - auto operator()(Args && ... args) const - -> decltype(format(str, std::forward(args)...)) - { - return format(str, std::forward(args)...); - } + template + auto operator()(Args && ... args) const + -> decltype(format(str, std::forward(args)...)) { + return format(str, std::forward(args)...); + } }; template -struct UdlArg -{ - const Char *str; - - template - NamedArg operator=(T &&value) const - { - return {str, std::forward(value)}; - } +struct UdlArg { + const Char *str; + + template + NamedArgWithType operator=(T &&value) const { + return {str, std::forward(value)}; + } }; } // namespace internal -inline namespace literals -{ +inline namespace literals { /** \rst @@ -4447,15 +3970,9 @@ inline namespace literals \endrst */ inline internal::UdlFormat -operator"" _format(const char *s, std::size_t) -{ - return {s}; -} +operator"" _format(const char *s, std::size_t) { return {s}; } inline internal::UdlFormat -operator"" _format(const wchar_t *s, std::size_t) -{ - return {s}; -} +operator"" _format(const wchar_t *s, std::size_t) { return {s}; } /** \rst @@ -4468,15 +3985,9 @@ operator"" _format(const wchar_t *s, std::size_t) \endrst */ inline internal::UdlArg -operator"" _a(const char *s, std::size_t) -{ - return {s}; -} +operator"" _a(const char *s, std::size_t) { return {s}; } inline internal::UdlArg -operator"" _a(const wchar_t *s, std::size_t) -{ - return {s}; -} +operator"" _a(const wchar_t *s, std::size_t) { return {s}; } } // inline namespace literals } // namespace fmt diff --git a/include/spdlog/fmt/bundled/ostream.cc b/include/spdlog/fmt/bundled/ostream.cc index bcb67fe15..2d443f730 100644 --- a/include/spdlog/fmt/bundled/ostream.cc +++ b/include/spdlog/fmt/bundled/ostream.cc @@ -11,9 +11,8 @@ namespace fmt { -namespace { -// Write the content of w to os. -void write(std::ostream &os, Writer &w) { +namespace internal { +FMT_FUNC void write(std::ostream &os, Writer &w) { const char *data = w.data(); typedef internal::MakeUnsigned::Type UnsignedStreamSize; UnsignedStreamSize size = w.size(); @@ -31,13 +30,6 @@ void write(std::ostream &os, Writer &w) { FMT_FUNC void print(std::ostream &os, CStringRef format_str, ArgList args) { MemoryWriter w; w.write(format_str, args); - write(os, w); -} - -FMT_FUNC int fprintf(std::ostream &os, CStringRef format, ArgList args) { - MemoryWriter w; - printf(w, format, args); - write(os, w); - return static_cast(w.size()); + internal::write(os, w); } } // namespace fmt diff --git a/include/spdlog/fmt/bundled/ostream.h b/include/spdlog/fmt/bundled/ostream.h index c52646d0b..84a02d173 100644 --- a/include/spdlog/fmt/bundled/ostream.h +++ b/include/spdlog/fmt/bundled/ostream.h @@ -13,85 +13,76 @@ #include "format.h" #include -namespace fmt -{ +namespace fmt { -namespace internal -{ +namespace internal { template -class FormatBuf : public std::basic_streambuf -{ -private: - typedef typename std::basic_streambuf::int_type int_type; - typedef typename std::basic_streambuf::traits_type traits_type; - - Buffer &buffer_; - Char *start_; - -public: - FormatBuf(Buffer &buffer) : buffer_(buffer), start_(&buffer[0]) - { - this->setp(start_, start_ + buffer_.capacity()); - } - - int_type overflow(int_type ch = traits_type::eof()) - { - if (!traits_type::eq_int_type(ch, traits_type::eof())) - { - size_t buf_size = size(); - buffer_.resize(buf_size); - buffer_.reserve(buf_size * 2); - - start_ = &buffer_[0]; - start_[buf_size] = traits_type::to_char_type(ch); - this->setp(start_+ buf_size + 1, start_ + buf_size * 2); - } - return ch; - } - - size_t size() const - { - return to_unsigned(this->pptr() - start_); - } +class FormatBuf : public std::basic_streambuf { + private: + typedef typename std::basic_streambuf::int_type int_type; + typedef typename std::basic_streambuf::traits_type traits_type; + + Buffer &buffer_; + + public: + FormatBuf(Buffer &buffer) : buffer_(buffer) {} + + protected: + // The put-area is actually always empty. This makes the implementation + // simpler and has the advantage that the streambuf and the buffer are always + // in sync and sputc never writes into uninitialized memory. The obvious + // disadvantage is that each call to sputc always results in a (virtual) call + // to overflow. There is no disadvantage here for sputn since this always + // results in a call to xsputn. + + int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE { + if (!traits_type::eq_int_type(ch, traits_type::eof())) + buffer_.push_back(static_cast(ch)); + return ch; + } + + std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE { + buffer_.append(s, s + count); + return count; + } }; Yes &convert(std::ostream &); -struct DummyStream : std::ostream -{ - DummyStream(); // Suppress a bogus warning in MSVC. - // Hide all operator<< overloads from std::ostream. - void operator<<(Null<>); +struct DummyStream : std::ostream { + DummyStream(); // Suppress a bogus warning in MSVC. + // Hide all operator<< overloads from std::ostream. + void operator<<(Null<>); }; No &operator<<(std::ostream &, int); template -struct ConvertToIntImpl -{ - // Convert to int only if T doesn't have an overloaded operator<<. - enum - { - value = sizeof(convert(get() << get())) == sizeof(No) - }; +struct ConvertToIntImpl { + // Convert to int only if T doesn't have an overloaded operator<<. + enum { + value = sizeof(convert(get() << get())) == sizeof(No) + }; }; + +// Write the content of w to os. +FMT_API void write(std::ostream &os, Writer &w); } // namespace internal // Formats a value. -template -void format(BasicFormatter &f, - const Char *&format_str, const T &value) -{ - internal::MemoryBuffer buffer; - - internal::FormatBuf format_buf(buffer); - std::basic_ostream output(&format_buf); - output << value; - - BasicStringRef str(&buffer[0], format_buf.size()); - typedef internal::MakeArg< BasicFormatter > MakeArg; - format_str = f.format(format_str, MakeArg(str)); +template +void format_arg(BasicFormatter &f, + const Char *&format_str, const T &value) { + internal::MemoryBuffer buffer; + + internal::FormatBuf format_buf(buffer); + std::basic_ostream output(&format_buf); + output << value; + + BasicStringRef str(&buffer[0], buffer.size()); + typedef internal::MakeArg< BasicFormatter > MakeArg; + format_str = f.format(format_str, MakeArg(str)); } /** @@ -105,18 +96,6 @@ void format(BasicFormatter &f, */ FMT_API void print(std::ostream &os, CStringRef format_str, ArgList args); FMT_VARIADIC(void, print, std::ostream &, CStringRef) - -/** - \rst - Prints formatted data to the stream *os*. - - **Example**:: - - fprintf(cerr, "Don't %s!", "panic"); - \endrst - */ -FMT_API int fprintf(std::ostream &os, CStringRef format_str, ArgList args); -FMT_VARIADIC(int, fprintf, std::ostream &, CStringRef) } // namespace fmt #ifdef FMT_HEADER_ONLY diff --git a/include/spdlog/fmt/bundled/posix.cc b/include/spdlog/fmt/bundled/posix.cc index 76eb7f05e..356668c13 100644 --- a/include/spdlog/fmt/bundled/posix.cc +++ b/include/spdlog/fmt/bundled/posix.cc @@ -21,6 +21,9 @@ #ifndef _WIN32 # include #else +# ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +# endif # include # include @@ -79,7 +82,7 @@ void fmt::BufferedFile::close() { if (!file_) return; int result = FMT_SYSTEM(fclose(file_)); - file_ = 0; + file_ = FMT_NULL; if (result != 0) FMT_THROW(SystemError(errno, "cannot close file")); } diff --git a/include/spdlog/fmt/bundled/posix.h b/include/spdlog/fmt/bundled/posix.h index 859fcaa75..88512de55 100644 --- a/include/spdlog/fmt/bundled/posix.h +++ b/include/spdlog/fmt/bundled/posix.h @@ -51,25 +51,6 @@ # endif #endif -#if FMT_GCC_VERSION >= 407 -# define FMT_UNUSED __attribute__((unused)) -#else -# define FMT_UNUSED -#endif - -#ifndef FMT_USE_STATIC_ASSERT -# define FMT_USE_STATIC_ASSERT 0 -#endif - -#if FMT_USE_STATIC_ASSERT || FMT_HAS_FEATURE(cxx_static_assert) || \ - (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600 -# define FMT_STATIC_ASSERT(cond, message) static_assert(cond, message) -#else -# define FMT_CONCAT_(a, b) FMT_CONCAT(a, b) -# define FMT_STATIC_ASSERT(cond, message) \ - typedef int FMT_CONCAT_(Assert, __LINE__)[(cond) ? 1 : -1] FMT_UNUSED -#endif - // Retries the expression while it evaluates to error_result and errno // equals to EINTR. #ifndef _WIN32 @@ -83,134 +64,112 @@ #define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1) -namespace fmt -{ +namespace fmt { // An error code. -class ErrorCode -{ -private: - int value_; +class ErrorCode { + private: + int value_; -public: -explicit ErrorCode(int value = 0) FMT_NOEXCEPT : - value_(value) {} + public: + explicit ErrorCode(int value = 0) FMT_NOEXCEPT : value_(value) {} - int get() const FMT_NOEXCEPT - { - return value_; - } + int get() const FMT_NOEXCEPT { return value_; } }; // A buffered file. -class BufferedFile -{ -private: - FILE *file_; +class BufferedFile { + private: + FILE *file_; - friend class File; + friend class File; - explicit BufferedFile(FILE *f) : file_(f) {} + explicit BufferedFile(FILE *f) : file_(f) {} -public: - // Constructs a BufferedFile object which doesn't represent any file. -BufferedFile() FMT_NOEXCEPT : - file_(0) {} + public: + // Constructs a BufferedFile object which doesn't represent any file. + BufferedFile() FMT_NOEXCEPT : file_(FMT_NULL) {} - // Destroys the object closing the file it represents if any. - ~BufferedFile() FMT_NOEXCEPT; + // Destroys the object closing the file it represents if any. + FMT_API ~BufferedFile() FMT_NOEXCEPT; #if !FMT_USE_RVALUE_REFERENCES - // Emulate a move constructor and a move assignment operator if rvalue - // references are not supported. + // Emulate a move constructor and a move assignment operator if rvalue + // references are not supported. -private: - // A proxy object to emulate a move constructor. - // It is private to make it impossible call operator Proxy directly. - struct Proxy - { - FILE *file; - }; + private: + // A proxy object to emulate a move constructor. + // It is private to make it impossible call operator Proxy directly. + struct Proxy { + FILE *file; + }; public: - // A "move constructor" for moving from a temporary. -BufferedFile(Proxy p) FMT_NOEXCEPT : - file_(p.file) {} - - // A "move constructor" for moving from an lvalue. -BufferedFile(BufferedFile &f) FMT_NOEXCEPT : - file_(f.file_) - { - f.file_ = 0; - } - - // A "move assignment operator" for moving from a temporary. - BufferedFile &operator=(Proxy p) - { - close(); - file_ = p.file; - return *this; - } - - // A "move assignment operator" for moving from an lvalue. - BufferedFile &operator=(BufferedFile &other) - { - close(); - file_ = other.file_; - other.file_ = 0; - return *this; - } - - // Returns a proxy object for moving from a temporary: - // BufferedFile file = BufferedFile(...); - operator Proxy() FMT_NOEXCEPT - { - Proxy p = {file_}; - file_ = 0; - return p; - } + // A "move constructor" for moving from a temporary. + BufferedFile(Proxy p) FMT_NOEXCEPT : file_(p.file) {} + + // A "move constructor" for moving from an lvalue. + BufferedFile(BufferedFile &f) FMT_NOEXCEPT : file_(f.file_) { + f.file_ = FMT_NULL; + } + + // A "move assignment operator" for moving from a temporary. + BufferedFile &operator=(Proxy p) { + close(); + file_ = p.file; + return *this; + } + + // A "move assignment operator" for moving from an lvalue. + BufferedFile &operator=(BufferedFile &other) { + close(); + file_ = other.file_; + other.file_ = FMT_NULL; + return *this; + } + + // Returns a proxy object for moving from a temporary: + // BufferedFile file = BufferedFile(...); + operator Proxy() FMT_NOEXCEPT { + Proxy p = {file_}; + file_ = FMT_NULL; + return p; + } #else -private: - FMT_DISALLOW_COPY_AND_ASSIGN(BufferedFile); - -public: -BufferedFile(BufferedFile &&other) FMT_NOEXCEPT : - file_(other.file_) - { - other.file_ = 0; - } - - BufferedFile& operator=(BufferedFile &&other) - { - close(); - file_ = other.file_; - other.file_ = 0; - return *this; - } + private: + FMT_DISALLOW_COPY_AND_ASSIGN(BufferedFile); + + public: + BufferedFile(BufferedFile &&other) FMT_NOEXCEPT : file_(other.file_) { + other.file_ = FMT_NULL; + } + + BufferedFile& operator=(BufferedFile &&other) { + close(); + file_ = other.file_; + other.file_ = FMT_NULL; + return *this; + } #endif - // Opens a file. - BufferedFile(CStringRef filename, CStringRef mode); + // Opens a file. + FMT_API BufferedFile(CStringRef filename, CStringRef mode); - // Closes the file. - void close(); + // Closes the file. + FMT_API void close(); - // Returns the pointer to a FILE object representing this file. - FILE *get() const FMT_NOEXCEPT - { - return file_; - } + // Returns the pointer to a FILE object representing this file. + FILE *get() const FMT_NOEXCEPT { return file_; } - // We place parentheses around fileno to workaround a bug in some versions - // of MinGW that define fileno as a macro. - int (fileno)() const; + // We place parentheses around fileno to workaround a bug in some versions + // of MinGW that define fileno as a macro. + FMT_API int (fileno)() const; - void print(CStringRef format_str, const ArgList &args) - { - fmt::print(file_, format_str, args); - } - FMT_VARIADIC(void, print, CStringRef) + void print(CStringRef format_str, const ArgList &args) { + fmt::print(file_, format_str, args); + } + FMT_VARIADIC(void, print, CStringRef) }; // A file. Closed file is represented by a File object with descriptor -1. @@ -219,141 +178,125 @@ BufferedFile(BufferedFile &&other) FMT_NOEXCEPT : // closing the file multiple times will cause a crash on Windows rather // than an exception. You can get standard behavior by overriding the // invalid parameter handler with _set_invalid_parameter_handler. -class File -{ -private: - int fd_; // File descriptor. +class File { + private: + int fd_; // File descriptor. - // Constructs a File object with a given descriptor. - explicit File(int fd) : fd_(fd) {} + // Constructs a File object with a given descriptor. + explicit File(int fd) : fd_(fd) {} -public: - // Possible values for the oflag argument to the constructor. - enum - { - RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only. - WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only. - RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing. - }; + public: + // Possible values for the oflag argument to the constructor. + enum { + RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only. + WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only. + RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing. + }; - // Constructs a File object which doesn't represent any file. -File() FMT_NOEXCEPT : - fd_(-1) {} + // Constructs a File object which doesn't represent any file. + File() FMT_NOEXCEPT : fd_(-1) {} - // Opens a file and constructs a File object representing this file. - File(CStringRef path, int oflag); + // Opens a file and constructs a File object representing this file. + FMT_API File(CStringRef path, int oflag); #if !FMT_USE_RVALUE_REFERENCES - // Emulate a move constructor and a move assignment operator if rvalue - // references are not supported. - -private: - // A proxy object to emulate a move constructor. - // It is private to make it impossible call operator Proxy directly. - struct Proxy - { - int fd; - }; - -public: - // A "move constructor" for moving from a temporary. -File(Proxy p) FMT_NOEXCEPT : - fd_(p.fd) {} - - // A "move constructor" for moving from an lvalue. -File(File &other) FMT_NOEXCEPT : - fd_(other.fd_) - { - other.fd_ = -1; - } - - // A "move assignment operator" for moving from a temporary. - File &operator=(Proxy p) - { - close(); - fd_ = p.fd; - return *this; - } - - // A "move assignment operator" for moving from an lvalue. - File &operator=(File &other) - { - close(); - fd_ = other.fd_; - other.fd_ = -1; - return *this; - } - - // Returns a proxy object for moving from a temporary: - // File file = File(...); - operator Proxy() FMT_NOEXCEPT - { - Proxy p = {fd_}; - fd_ = -1; - return p; - } + // Emulate a move constructor and a move assignment operator if rvalue + // references are not supported. + + private: + // A proxy object to emulate a move constructor. + // It is private to make it impossible call operator Proxy directly. + struct Proxy { + int fd; + }; + + public: + // A "move constructor" for moving from a temporary. + File(Proxy p) FMT_NOEXCEPT : fd_(p.fd) {} + + // A "move constructor" for moving from an lvalue. + File(File &other) FMT_NOEXCEPT : fd_(other.fd_) { + other.fd_ = -1; + } + + // A "move assignment operator" for moving from a temporary. + File &operator=(Proxy p) { + close(); + fd_ = p.fd; + return *this; + } + + // A "move assignment operator" for moving from an lvalue. + File &operator=(File &other) { + close(); + fd_ = other.fd_; + other.fd_ = -1; + return *this; + } + + // Returns a proxy object for moving from a temporary: + // File file = File(...); + operator Proxy() FMT_NOEXCEPT { + Proxy p = {fd_}; + fd_ = -1; + return p; + } #else -private: - FMT_DISALLOW_COPY_AND_ASSIGN(File); - -public: -File(File &&other) FMT_NOEXCEPT : - fd_(other.fd_) - { - other.fd_ = -1; - } - - File& operator=(File &&other) - { - close(); - fd_ = other.fd_; - other.fd_ = -1; - return *this; - } + private: + FMT_DISALLOW_COPY_AND_ASSIGN(File); + + public: + File(File &&other) FMT_NOEXCEPT : fd_(other.fd_) { + other.fd_ = -1; + } + + File& operator=(File &&other) { + close(); + fd_ = other.fd_; + other.fd_ = -1; + return *this; + } #endif - // Destroys the object closing the file it represents if any. - ~File() FMT_NOEXCEPT; + // Destroys the object closing the file it represents if any. + FMT_API ~File() FMT_NOEXCEPT; - // Returns the file descriptor. - int descriptor() const FMT_NOEXCEPT - { - return fd_; - } + // Returns the file descriptor. + int descriptor() const FMT_NOEXCEPT { return fd_; } - // Closes the file. - void close(); + // Closes the file. + FMT_API void close(); - // Returns the file size. The size has signed type for consistency with - // stat::st_size. - LongLong size() const; + // Returns the file size. The size has signed type for consistency with + // stat::st_size. + FMT_API LongLong size() const; - // Attempts to read count bytes from the file into the specified buffer. - std::size_t read(void *buffer, std::size_t count); + // Attempts to read count bytes from the file into the specified buffer. + FMT_API std::size_t read(void *buffer, std::size_t count); - // Attempts to write count bytes from the specified buffer to the file. - std::size_t write(const void *buffer, std::size_t count); + // Attempts to write count bytes from the specified buffer to the file. + FMT_API std::size_t write(const void *buffer, std::size_t count); - // Duplicates a file descriptor with the dup function and returns - // the duplicate as a file object. - static File dup(int fd); + // Duplicates a file descriptor with the dup function and returns + // the duplicate as a file object. + FMT_API static File dup(int fd); - // Makes fd be the copy of this file descriptor, closing fd first if - // necessary. - void dup2(int fd); + // Makes fd be the copy of this file descriptor, closing fd first if + // necessary. + FMT_API void dup2(int fd); - // Makes fd be the copy of this file descriptor, closing fd first if - // necessary. - void dup2(int fd, ErrorCode &ec) FMT_NOEXCEPT; + // Makes fd be the copy of this file descriptor, closing fd first if + // necessary. + FMT_API void dup2(int fd, ErrorCode &ec) FMT_NOEXCEPT; - // Creates a pipe setting up read_end and write_end file objects for reading - // and writing respectively. - static void pipe(File &read_end, File &write_end); + // Creates a pipe setting up read_end and write_end file objects for reading + // and writing respectively. + FMT_API static void pipe(File &read_end, File &write_end); - // Creates a BufferedFile object associated with this file and detaches - // this File object from the file. - BufferedFile fdopen(const char *mode); + // Creates a BufferedFile object associated with this file and detaches + // this File object from the file. + FMT_API BufferedFile fdopen(const char *mode); }; // Returns the memory page size. @@ -366,77 +309,58 @@ long getpagesize(); #ifdef FMT_LOCALE // A "C" numeric locale. -class Locale -{ -private: +class Locale { + private: # ifdef _MSC_VER - typedef _locale_t locale_t; + typedef _locale_t locale_t; - enum { LC_NUMERIC_MASK = LC_NUMERIC }; + enum { LC_NUMERIC_MASK = LC_NUMERIC }; - static locale_t newlocale(int category_mask, const char *locale, locale_t) - { - return _create_locale(category_mask, locale); - } + static locale_t newlocale(int category_mask, const char *locale, locale_t) { + return _create_locale(category_mask, locale); + } - static void freelocale(locale_t locale) - { - _free_locale(locale); - } + static void freelocale(locale_t locale) { + _free_locale(locale); + } - static double strtod_l(const char *nptr, char **endptr, _locale_t locale) - { - return _strtod_l(nptr, endptr, locale); - } + static double strtod_l(const char *nptr, char **endptr, _locale_t locale) { + return _strtod_l(nptr, endptr, locale); + } # endif - locale_t locale_; + locale_t locale_; - FMT_DISALLOW_COPY_AND_ASSIGN(Locale); + FMT_DISALLOW_COPY_AND_ASSIGN(Locale); -public: - typedef locale_t Type; - - Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", NULL)) - { - if (!locale_) - FMT_THROW(fmt::SystemError(errno, "cannot create locale")); - } - ~Locale() - { - freelocale(locale_); - } - - Type get() const - { - return locale_; - } - - // Converts string to floating-point number and advances str past the end - // of the parsed input. - double strtod(const char *&str) const - { - char *end = 0; - double result = strtod_l(str, &end, locale_); - str = end; - return result; - } + public: + typedef locale_t Type; + + Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL)) { + if (!locale_) + FMT_THROW(fmt::SystemError(errno, "cannot create locale")); + } + ~Locale() { freelocale(locale_); } + + Type get() const { return locale_; } + + // Converts string to floating-point number and advances str past the end + // of the parsed input. + double strtod(const char *&str) const { + char *end = FMT_NULL; + double result = strtod_l(str, &end, locale_); + str = end; + return result; + } }; #endif // FMT_LOCALE } // namespace fmt #if !FMT_USE_RVALUE_REFERENCES -namespace std -{ +namespace std { // For compatibility with C++98. -inline fmt::BufferedFile &move(fmt::BufferedFile &f) -{ - return f; -} -inline fmt::File &move(fmt::File &f) -{ - return f; -} +inline fmt::BufferedFile &move(fmt::BufferedFile &f) { return f; } +inline fmt::File &move(fmt::File &f) { return f; } } #endif diff --git a/include/spdlog/fmt/bundled/time.h b/include/spdlog/fmt/bundled/time.h index 10c6cfc90..c98b0e011 100644 --- a/include/spdlog/fmt/bundled/time.h +++ b/include/spdlog/fmt/bundled/time.h @@ -13,46 +13,131 @@ #include "format.h" #include -namespace fmt -{ +#ifdef _MSC_VER +# pragma warning(push) +# pragma warning(disable: 4702) // unreachable code +# pragma warning(disable: 4996) // "deprecated" functions +#endif + +namespace fmt { template -void format(BasicFormatter &f, - const char *&format_str, const std::tm &tm) -{ - if (*format_str == ':') - ++format_str; - const char *end = format_str; - while (*end && *end != '}') - ++end; - if (*end != '}') - FMT_THROW(FormatError("missing '}' in format string")); - internal::MemoryBuffer format; - format.append(format_str, end + 1); - format[format.size() - 1] = '\0'; - Buffer &buffer = f.writer().buffer(); - std::size_t start = buffer.size(); - for (;;) - { - std::size_t size = buffer.capacity() - start; - std::size_t count = std::strftime(&buffer[start], size, &format[0], &tm); - if (count != 0) - { - buffer.resize(start + count); - break; - } - if (size >= format.size() * 256) - { - // If the buffer is 256 times larger than the format string, assume - // that `strftime` gives an empty result. There doesn't seem to be a - // better way to distinguish the two cases: - // https://github.com/fmtlib/fmt/issues/367 - break; - } - const std::size_t MIN_GROWTH = 10; - buffer.reserve(buffer.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH)); - } - format_str = end + 1; +void format_arg(BasicFormatter &f, + const char *&format_str, const std::tm &tm) { + if (*format_str == ':') + ++format_str; + const char *end = format_str; + while (*end && *end != '}') + ++end; + if (*end != '}') + FMT_THROW(FormatError("missing '}' in format string")); + internal::MemoryBuffer format; + format.append(format_str, end + 1); + format[format.size() - 1] = '\0'; + Buffer &buffer = f.writer().buffer(); + std::size_t start = buffer.size(); + for (;;) { + std::size_t size = buffer.capacity() - start; + std::size_t count = std::strftime(&buffer[start], size, &format[0], &tm); + if (count != 0) { + buffer.resize(start + count); + break; + } + if (size >= format.size() * 256) { + // If the buffer is 256 times larger than the format string, assume + // that `strftime` gives an empty result. There doesn't seem to be a + // better way to distinguish the two cases: + // https://github.com/fmtlib/fmt/issues/367 + break; + } + const std::size_t MIN_GROWTH = 10; + buffer.reserve(buffer.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH)); + } + format_str = end + 1; } + +namespace internal{ +inline Null<> localtime_r(...) { return Null<>(); } +inline Null<> localtime_s(...) { return Null<>(); } +inline Null<> gmtime_r(...) { return Null<>(); } +inline Null<> gmtime_s(...) { return Null<>(); } } +// Thread-safe replacement for std::localtime +inline std::tm localtime(std::time_t time) { + struct LocalTime { + std::time_t time_; + std::tm tm_; + + LocalTime(std::time_t t): time_(t) {} + + bool run() { + using namespace fmt::internal; + return handle(localtime_r(&time_, &tm_)); + } + + bool handle(std::tm *tm) { return tm != FMT_NULL; } + + bool handle(internal::Null<>) { + using namespace fmt::internal; + return fallback(localtime_s(&tm_, &time_)); + } + + bool fallback(int res) { return res == 0; } + + bool fallback(internal::Null<>) { + using namespace fmt::internal; + std::tm *tm = std::localtime(&time_); + if (tm) tm_ = *tm; + return tm != FMT_NULL; + } + }; + LocalTime lt(time); + if (lt.run()) + return lt.tm_; + // Too big time values may be unsupported. + FMT_THROW(fmt::FormatError("time_t value out of range")); + return std::tm(); +} + +// Thread-safe replacement for std::gmtime +inline std::tm gmtime(std::time_t time) { + struct GMTime { + std::time_t time_; + std::tm tm_; + + GMTime(std::time_t t): time_(t) {} + + bool run() { + using namespace fmt::internal; + return handle(gmtime_r(&time_, &tm_)); + } + + bool handle(std::tm *tm) { return tm != FMT_NULL; } + + bool handle(internal::Null<>) { + using namespace fmt::internal; + return fallback(gmtime_s(&tm_, &time_)); + } + + bool fallback(int res) { return res == 0; } + + bool fallback(internal::Null<>) { + std::tm *tm = std::gmtime(&time_); + if (tm != FMT_NULL) tm_ = *tm; + return tm != FMT_NULL; + } + }; + GMTime gt(time); + if (gt.run()) + return gt.tm_; + // Too big time values may be unsupported. + FMT_THROW(fmt::FormatError("time_t value out of range")); + return std::tm(); +} +} //namespace fmt + +#ifdef _MSC_VER +# pragma warning(pop) +#endif + #endif // FMT_TIME_H_