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Unifdef c++11-related macros from googletest now that it requires C++11.

PiperOrigin-RevId: 225905601
This commit is contained in:
Abseil Team
2018-12-17 18:59:00 -05:00
committed by Mark Barolak
parent 9ab640ce5e
commit e26a3fa13c
17 changed files with 30 additions and 654 deletions
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121
googletest/include/gtest/internal/gtest-port.h
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@@ -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.
//