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Added C++11 R-value and noexcept feature detection

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This commit is contained in:
Jeffrey Walton 2015-07-26 20:36:24 -04:00
parent 8ea014437c
commit 46edae68a5
1 changed files with 38 additions and 0 deletions
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38
config.h
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@ -485,4 +485,42 @@ NAMESPACE_END
#define CRYPTOPP_STATIC_TEMPLATE_CLASS CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS
#endif
// ***************** C++11 related ********************
// Visual Studio and C++11 language features began at Visual Studio 2012,
// https://msdn.microsoft.com/en-us/library/hh567368%28v=vs.110%29.aspx.
// Also see the warning on the buggy C++11 feature matrix at
// http://stackoverflow.com/a/31642496/608639
#if (__cpluplus >= 201103L) || (_MSC_VER >= 1500)
# define CRYPTOPP_CXX11
#endif
// C++11 R-values. MS at VS2010 (16.00); GCC at 4.3; Clang at 2.9; and Intel 11.1.
#if (_MSC_VER >= 1600) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
# define CRYPTOPP_CXX11_RVALUES 1
#endif
#if defined(__clang__)
# if __has_feature(cxx_rvalue_references)
# define CRYPTOPP_CXX11_RVALUES 1
# endif
#endif // R-value compilers
// C++11 noexcept. MS at VS2015 (19.00); GCC at 4.6; Clang at 3.0; and Intel 14.0.
#if (_MSC_VER >= 1900) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
# define CRYPTOPP_CXX11_NOEXCEPT 1
#endif
#if defined(__clang__)
# if __has_feature(cxx_noexcept)
# define CRYPTOPP_CXX11_NOEXCEPT 1
# endif
#endif // noexcept compilers
#if defined(CRYPTOPP_CXX11_NOEXCEPT)
# define CRYPTOPP_THROW noexcept(false)
# define CRYPTOPP_NO_THROW noexcept(true)
#else
# define CRYPTOPP_THROW
# define CRYPTOPP_NO_THROW
#endif // CRYPTOPP_CXX11_NOEXCEPT
#endif