diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/gtest/internal/gtest-port.h | 67 |
1 files changed, 53 insertions, 14 deletions
diff --git a/include/gtest/internal/gtest-port.h b/include/gtest/internal/gtest-port.h index 817ac8c..e5a4551 100644 --- a/include/gtest/internal/gtest-port.h +++ b/include/gtest/internal/gtest-port.h @@ -72,6 +72,8 @@ // Test's own tr1 tuple implementation should be // used. Unused when the user sets // GTEST_HAS_TR1_TUPLE to 0. +// 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 @@ -259,6 +261,19 @@ # define GTEST_OS_QNX 1 #endif // __CYGWIN__ +#ifndef GTEST_LANG_CXX11 +// gcc and clang define __GXX_EXPERIMENTAL_CXX0X__ when +// -std={c,gnu}++{0x,11} is passed. The C++11 standard specifies a +// value for __cplusplus, and recent versions of clang, gcc, and +// probably other compilers set that too in C++11 mode. +# if __GXX_EXPERIMENTAL_CXX0X__ || __cplusplus >= 201103L +// Compiling in at least C++11 mode. +# define GTEST_LANG_CXX11 1 +# else +# define GTEST_LANG_CXX11 0 +# endif +#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. @@ -267,12 +282,7 @@ // is not the case, we need to include headers that provide the functions // mentioned above. # include <unistd.h> -# if !GTEST_OS_NACL -// TODO(vladl@google.com): Remove this condition when Native Client SDK adds -// strings.h (tracked in -// http://code.google.com/p/nativeclient/issues/detail?id=1175). -# include <strings.h> // Native Client doesn't provide strings.h. -# endif +# include <strings.h> #elif !GTEST_OS_WINDOWS_MOBILE # include <direct.h> # include <io.h> @@ -466,15 +476,28 @@ // The user didn't tell us, so we need to figure it out. // We use our own TR1 tuple if we aren't sure the user has an -// implementation of it already. At this time, GCC 4.0.0+ and MSVC -// 2010 are the only mainstream compilers that come with a TR1 tuple -// implementation. NVIDIA's CUDA NVCC compiler pretends to be GCC by -// defining __GNUC__ and friends, but cannot compile GCC's tuple -// implementation. MSVC 2008 (9.0) provides TR1 tuple in a 323 MB -// Feature Pack download, which we cannot assume the user has. -// QNX's QCC compiler is a modified GCC but it doesn't support TR1 tuple. +// implementation of it already. At this time, libstdc++ 4.0.0+ and +// MSVC 2010 are the only mainstream standard libraries that come +// with a TR1 tuple implementation. NVIDIA's CUDA NVCC compiler +// pretends to be GCC by defining __GNUC__ and friends, but cannot +// compile GCC's tuple implementation. MSVC 2008 (9.0) provides TR1 +// tuple in a 323 MB Feature Pack download, which we cannot assume the +// user has. QNX's QCC compiler is a modified GCC but it doesn't +// support TR1 tuple. libc++ only provides std::tuple, in C++11 mode, +// and it can be used with some compilers that define __GNUC__. # if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000) \ - && !GTEST_OS_QNX) || _MSC_VER >= 1600 + && !GTEST_OS_QNX && !defined(_LIBCPP_VERSION)) || _MSC_VER >= 1600 +# define GTEST_ENV_HAS_TR1_TUPLE_ 1 +# endif + +// C++11 specifies that <tuple> provides std::tuple. Users can't use +// gtest in C++11 mode until their standard library is at least that +// compliant. +# if GTEST_LANG_CXX11 +# define GTEST_ENV_HAS_STD_TUPLE_ 1 +# endif + +# if GTEST_ENV_HAS_TR1_TUPLE_ || GTEST_ENV_HAS_STD_TUPLE_ # define GTEST_USE_OWN_TR1_TUPLE 0 # else # define GTEST_USE_OWN_TR1_TUPLE 1 @@ -489,6 +512,22 @@ # if GTEST_USE_OWN_TR1_TUPLE # include "gtest/internal/gtest-tuple.h" +# elif GTEST_ENV_HAS_STD_TUPLE_ +# include <tuple> +// C++11 puts its tuple into the ::std namespace rather than +// ::std::tr1. gtest expects tuple to live in ::std::tr1, so put it there. +// This causes undefined behavior, but supported compilers react in +// the way we intend. +namespace std { +namespace tr1 { +using ::std::get; +using ::std::make_tuple; +using ::std::tuple; +using ::std::tuple_element; +using ::std::tuple_size; +} +} + # elif GTEST_OS_SYMBIAN // On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to |