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Test language version using _MSVC_LANG rather than _HAS_CXX17.

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This commit is contained in:
Christopher Kohlhoff 2018-11-04 20:48:17 +11:00
parent 2e30e9d327
commit b397659ded
1 changed files with 4 additions and 7 deletions
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11
asio/include/asio/detail/config.hpp
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@ -70,9 +70,6 @@
# define ASIO_MSVC _MSC_VER
# endif // defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_MSVC)
#endif // !defined(ASIO_MSVC)
#if defined(ASIO_MSVC)
# include <ciso646> // Needed for _HAS_CXX17.
#endif // defined(ASIO_MSVC)
// Clang / libc++ detection.
#if defined(__clang__)
@ -799,9 +796,9 @@
# endif // (__cplusplus >= 201703)
# endif // (__GNUC__ >= 7)
# elif defined(ASIO_MSVC)
# if (_MSC_VER >= 1910 && _HAS_CXX17)
# if (_MSC_VER >= 1910 && _MSVC_LANG >= 201703)
# define ASIO_HAS_STD_STRING_VIEW 1
# endif // (_MSC_VER >= 1910 && _HAS_CXX17)
# endif // (_MSC_VER >= 1910 && _MSVC_LANG >= 201703)
# endif // defined(ASIO_MSVC)
# endif // !defined(ASIO_DISABLE_STD_STRING_VIEW)
#endif // !defined(ASIO_HAS_STD_STRING_VIEW)
@ -859,9 +856,9 @@
#if !defined(ASIO_HAS_STD_INVOKE_RESULT)
# if !defined(ASIO_DISABLE_STD_INVOKE_RESULT)
# if defined(ASIO_MSVC)
# if (_MSC_VER >= 1910 && _HAS_CXX17)
# if (_MSC_VER >= 1910 && _MSVC_LANG >= 201703)
# define ASIO_HAS_STD_INVOKE_RESULT 1
# endif // (_MSC_VER >= 1910 && _HAS_CXX17)
# endif // (_MSC_VER >= 1910 && _MSVC_LANG >= 201703)
# endif // defined(ASIO_MSVC)
# endif // !defined(ASIO_DISABLE_STD_INVOKE_RESULT)
#endif // !defined(ASIO_HAS_STD_INVOKE_RESULT)