Test IsConvertibleToInt with a C++11 enum

fmtlib · Mar 18, 2015 · 2adbfa4 · 2adbfa4
1 parent 23b60f5
commit 2adbfa4
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diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
@@ -14,6 +14,14 @@ function(add_fmt_test name)
   add_test(NAME ${name} COMMAND ${name})
 endfunction()
 
+check_cxx_source_compiles("
+  enum C : char {A};
+  int main() {}"
+  HAVE_ENUM_BASE)
+if (HAVE_ENUM_BASE)
+  add_definitions(-DFMT_USE_ENUM_BASE=1)
+endif ()
+
 add_fmt_test(gtest-extra-test)
 add_fmt_test(format-test)
 add_fmt_test(format-impl-test CUSTOM_LINK)

diff --git a/test/util-test.cc b/test/util-test.cc
@@ -837,3 +837,11 @@ TEST(UtilTest, IsConvertibleToInt) {
   EXPECT_TRUE(fmt::internal::IsConvertibleToInt<char>::value);
   EXPECT_FALSE(fmt::internal::IsConvertibleToInt<const char *>::value);
 }
+
+#if FMT_USE_ENUM_BASE
+enum TestEnum : char {TestValue};
+TEST(UtilTest, IsEnumConvertibleToInt) {
+  EXPECT_TRUE(fmt::internal::IsConvertibleToInt<TestEnum>::value);
+}
+#endif
+