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| // Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
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| //! OS-specific functionality. | ||
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| #![stable(feature = "os", since = "1.29.0")] | ||
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| pub mod raw; |
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| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
|
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| //! Platform-specific types, as defined by C. | ||
| //! | ||
| //! Code that interacts via FFI will almost certainly be using the | ||
| //! base types provided by C, which aren't nearly as nicely defined | ||
| //! as Rust's primitive types. This module provides types which will | ||
| //! match those defined by C, so that code that interacts with C will | ||
| //! refer to the correct types. | ||
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| #![stable(feature = "raw_os", since = "1.1.0")] | ||
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| use fmt; | ||
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| #[doc(include = "os/raw/char.md")] | ||
| #[cfg(any(all(target_os = "linux", any(target_arch = "aarch64", | ||
| target_arch = "arm", | ||
| target_arch = "powerpc", | ||
| target_arch = "powerpc64", | ||
| target_arch = "s390x")), | ||
| all(target_os = "android", any(target_arch = "aarch64", | ||
| target_arch = "arm")), | ||
| all(target_os = "l4re", target_arch = "x86_64"), | ||
| all(target_os = "openbsd", target_arch = "aarch64"), | ||
| all(target_os = "fuchsia", target_arch = "aarch64")))] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_char = u8; | ||
| #[doc(include = "os/raw/char.md")] | ||
| #[cfg(not(any(all(target_os = "linux", any(target_arch = "aarch64", | ||
| target_arch = "arm", | ||
| target_arch = "powerpc", | ||
| target_arch = "powerpc64", | ||
| target_arch = "s390x")), | ||
| all(target_os = "android", any(target_arch = "aarch64", | ||
| target_arch = "arm")), | ||
| all(target_os = "l4re", target_arch = "x86_64"), | ||
| all(target_os = "openbsd", target_arch = "aarch64"), | ||
| all(target_os = "fuchsia", target_arch = "aarch64"))))] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_char = i8; | ||
| #[doc(include = "os/raw/schar.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_schar = i8; | ||
| #[doc(include = "os/raw/uchar.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_uchar = u8; | ||
| #[doc(include = "os/raw/short.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_short = i16; | ||
| #[doc(include = "os/raw/ushort.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_ushort = u16; | ||
| #[doc(include = "os/raw/int.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_int = i32; | ||
| #[doc(include = "os/raw/uint.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_uint = u32; | ||
| #[doc(include = "os/raw/long.md")] | ||
| #[cfg(any(target_pointer_width = "32", windows))] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_long = i32; | ||
| #[doc(include = "os/raw/ulong.md")] | ||
| #[cfg(any(target_pointer_width = "32", windows))] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_ulong = u32; | ||
| #[doc(include = "os/raw/long.md")] | ||
| #[cfg(all(target_pointer_width = "64", not(windows)))] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_long = i64; | ||
| #[doc(include = "os/raw/ulong.md")] | ||
| #[cfg(all(target_pointer_width = "64", not(windows)))] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_ulong = u64; | ||
| #[doc(include = "os/raw/longlong.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_longlong = i64; | ||
| #[doc(include = "os/raw/ulonglong.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_ulonglong = u64; | ||
| #[doc(include = "os/raw/float.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_float = f32; | ||
| #[doc(include = "os/raw/double.md")] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] pub type c_double = f64; | ||
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| /// Equivalent to C's `void` type when used as a [pointer]. | ||
| /// | ||
| /// In essence, `*const c_void` is equivalent to C's `const void*` | ||
| /// and `*mut c_void` is equivalent to C's `void*`. That said, this is | ||
| /// *not* the same as C's `void` return type, which is Rust's `()` type. | ||
| /// | ||
| /// Ideally, this type would be equivalent to [`!`], but currently it may | ||
| /// be more ideal to use `c_void` for FFI purposes. | ||
| /// | ||
| /// [`!`]: ../../../std/primitive.never.html | ||
| /// [pointer]: ../../../std/primitive.pointer.html | ||
| // NB: For LLVM to recognize the void pointer type and by extension | ||
| // functions like malloc(), we need to have it represented as i8* in | ||
| // LLVM bitcode. The enum used here ensures this and prevents misuse | ||
| // of the "raw" type by only having private variants.. We need two | ||
| // variants, because the compiler complains about the repr attribute | ||
| // otherwise. | ||
| #[repr(u8)] | ||
| #[stable(feature = "raw_os", since = "1.1.0")] | ||
| pub enum c_void { | ||
| #[unstable(feature = "c_void_variant", reason = "should not have to exist", | ||
| issue = "0")] | ||
| #[doc(hidden)] __variant1, | ||
| #[unstable(feature = "c_void_variant", reason = "should not have to exist", | ||
| issue = "0")] | ||
| #[doc(hidden)] __variant2, | ||
| } | ||
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| #[stable(feature = "std_debug", since = "1.16.0")] | ||
| impl fmt::Debug for c_void { | ||
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | ||
| f.pad("c_void") | ||
| } | ||
| } |
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