diff options
Diffstat (limited to 'googletest/include/gtest/internal/gtest-port.h')
| -rw-r--r-- | googletest/include/gtest/internal/gtest-port.h | 121 |
1 files changed, 8 insertions, 113 deletions
diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h index 0637a23..9753266 100644 --- a/googletest/include/gtest/internal/gtest-port.h +++ b/googletest/include/gtest/internal/gtest-port.h @@ -92,8 +92,6 @@ // - Define it to 1/0 to indicate whether the // platform supports I/O stream redirection using // dup() and dup2(). -// GTEST_LANG_CXX11 - Define it to 1/0 to indicate that Google Test -// is building in C++11/C++98 mode. // GTEST_LINKED_AS_SHARED_LIBRARY // - Define to 1 when compiling tests that use // Google Test as a shared library (known as @@ -332,44 +330,6 @@ GTEST_DISABLE_MSC_WARNINGS_POP_() #endif -#define GTEST_LANG_CXX11 1 - -// Distinct from C++11 language support, some environments don't provide -// proper C++11 library support. Notably, it's possible to build in -// C++11 mode when targeting Mac OS X 10.6, which has an old libstdc++ -// with no C++11 support. -// -// libstdc++ has sufficient C++11 support as of GCC 4.6.0, __GLIBCXX__ -// 20110325, but maintenance releases in the 4.4 and 4.5 series followed -// this date, so check for those versions by their date stamps. -// https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html#abi.versioning -#if GTEST_LANG_CXX11 && \ - (!defined(__GLIBCXX__) || ( \ - __GLIBCXX__ >= 20110325ul && /* GCC >= 4.6.0 */ \ - /* Blacklist of patch releases of older branches: */ \ - __GLIBCXX__ != 20110416ul && /* GCC 4.4.6 */ \ - __GLIBCXX__ != 20120313ul && /* GCC 4.4.7 */ \ - __GLIBCXX__ != 20110428ul && /* GCC 4.5.3 */ \ - __GLIBCXX__ != 20120702ul)) /* GCC 4.5.4 */ -# define GTEST_STDLIB_CXX11 1 -#endif - -// Only use C++11 library features if the library provides them. -#if GTEST_STDLIB_CXX11 -# define GTEST_HAS_STD_BEGIN_AND_END_ 1 -# define GTEST_HAS_STD_FORWARD_LIST_ 1 -# if !defined(_MSC_VER) || (_MSC_FULL_VER >= 190023824) -// works only with VS2015U2 and better -# define GTEST_HAS_STD_FUNCTION_ 1 -# endif -# define GTEST_HAS_STD_INITIALIZER_LIST_ 1 -# define GTEST_HAS_STD_MOVE_ 1 -# define GTEST_HAS_STD_UNIQUE_PTR_ 1 -# define GTEST_HAS_STD_SHARED_PTR_ 1 -# define GTEST_HAS_UNORDERED_MAP_ 1 -# define GTEST_HAS_UNORDERED_SET_ 1 -#endif - // Brings in definitions for functions used in the testing::internal::posix // namespace (read, write, close, chdir, isatty, stat). We do not currently // use them on Windows Mobile. @@ -712,12 +672,6 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION; # define GTEST_ATTRIBUTE_UNUSED_ #endif -#if GTEST_LANG_CXX11 -# define GTEST_CXX11_EQUALS_DELETE_ = delete -#else // GTEST_LANG_CXX11 -# define GTEST_CXX11_EQUALS_DELETE_ -#endif // GTEST_LANG_CXX11 - // Use this annotation before a function that takes a printf format string. #if (defined(__GNUC__) || defined(__clang__)) && !defined(COMPILER_ICC) # if defined(__MINGW_PRINTF_FORMAT) @@ -739,12 +693,12 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION; // A macro to disallow operator= // This should be used in the private: declarations for a class. #define GTEST_DISALLOW_ASSIGN_(type) \ - void operator=(type const &) GTEST_CXX11_EQUALS_DELETE_ + void operator=(type const &) = delete // A macro to disallow copy constructor and operator= // This should be used in the private: declarations for a class. #define GTEST_DISALLOW_COPY_AND_ASSIGN_(type) \ - type(type const &) GTEST_CXX11_EQUALS_DELETE_; \ + type(type const &) = delete; \ GTEST_DISALLOW_ASSIGN_(type) // Tell the compiler to warn about unused return values for functions declared @@ -893,75 +847,16 @@ namespace internal { // Secret object, which is what we want. class Secret; -// The GTEST_COMPILE_ASSERT_ macro can be used to verify that a compile time -// expression is true. For example, you could use it to verify the -// size of a static array: +// The GTEST_COMPILE_ASSERT_ is a legacy macro used to verify that a compile +// time expression is true (in new code, use static_assert instead). For +// example, you could use it to verify the size of a static array: // // GTEST_COMPILE_ASSERT_(GTEST_ARRAY_SIZE_(names) == NUM_NAMES, // names_incorrect_size); // -// or to make sure a struct is smaller than a certain size: -// -// GTEST_COMPILE_ASSERT_(sizeof(foo) < 128, foo_too_large); -// -// The second argument to the macro is the name of the variable. If -// the expression is false, most compilers will issue a warning/error -// containing the name of the variable. - -#if GTEST_LANG_CXX11 -# define GTEST_COMPILE_ASSERT_(expr, msg) static_assert(expr, #msg) -#else // !GTEST_LANG_CXX11 -template <bool> - struct CompileAssert { -}; - -# define GTEST_COMPILE_ASSERT_(expr, msg) \ - typedef ::testing::internal::CompileAssert<(static_cast<bool>(expr))> \ - msg[static_cast<bool>(expr) ? 1 : -1] GTEST_ATTRIBUTE_UNUSED_ -#endif // !GTEST_LANG_CXX11 - -// Implementation details of GTEST_COMPILE_ASSERT_: -// -// (In C++11, we simply use static_assert instead of the following) -// -// - GTEST_COMPILE_ASSERT_ works by defining an array type that has -1 -// elements (and thus is invalid) when the expression is false. -// -// - The simpler definition -// -// #define GTEST_COMPILE_ASSERT_(expr, msg) typedef char msg[(expr) ? 1 : -1] -// -// does not work, as gcc supports variable-length arrays whose sizes -// are determined at run-time (this is gcc's extension and not part -// of the C++ standard). As a result, gcc fails to reject the -// following code with the simple definition: -// -// int foo; -// GTEST_COMPILE_ASSERT_(foo, msg); // not supposed to compile as foo is -// // not a compile-time constant. -// -// - By using the type CompileAssert<(bool(expr))>, we ensures that -// expr is a compile-time constant. (Template arguments must be -// determined at compile-time.) -// -// - The outter parentheses in CompileAssert<(bool(expr))> are necessary -// to work around a bug in gcc 3.4.4 and 4.0.1. If we had written -// -// CompileAssert<bool(expr)> -// -// instead, these compilers will refuse to compile -// -// GTEST_COMPILE_ASSERT_(5 > 0, some_message); -// -// (They seem to think the ">" in "5 > 0" marks the end of the -// template argument list.) -// -// - The array size is (bool(expr) ? 1 : -1), instead of simply -// -// ((expr) ? 1 : -1). -// -// This is to avoid running into a bug in MS VC 7.1, which -// causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1. +// The second argument to the macro must be a valid C++ identifier. If the +// expression is false, compiler will issue an error containing this identifier. +#define GTEST_COMPILE_ASSERT_(expr, msg) static_assert(expr, #msg) // StaticAssertTypeEqHelper is used by StaticAssertTypeEq defined in gtest.h. // |