# define BOOST_ASIO_DECL
#endif // !defined(BOOST_ASIO_DECL)
+// Helper macro for documentation.
+#define BOOST_ASIO_UNSPECIFIED(e) e
+
// Microsoft Visual C++ detection.
#if !defined(BOOST_ASIO_MSVC)
# if defined(BOOST_ASIO_HAS_BOOST_CONFIG) && defined(BOOST_MSVC)
# endif // __has_feature(__cxx_rvalue_references__)
# endif // defined(__clang__)
# if defined(__GNUC__)
-# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_MOVE 1
# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
-# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_ASIO_MSVC)
# if (_MSC_VER >= 1700)
# define BOOST_ASIO_NONDEDUCED_MOVE_ARG(type) type&
# define BOOST_ASIO_MOVE_CAST(type) static_cast<type&&>
# define BOOST_ASIO_MOVE_CAST2(type1, type2) static_cast<type1, type2&&>
+# define BOOST_ASIO_MOVE_OR_LVALUE(type) static_cast<type&&>
+# define BOOST_ASIO_MOVE_OR_LVALUE_TYPE(type) type
#endif // defined(BOOST_ASIO_HAS_MOVE) && !defined(BOOST_ASIO_MOVE_CAST)
// If BOOST_ASIO_MOVE_CAST still isn't defined, default to a C++03-compatible
# define BOOST_ASIO_NONDEDUCED_MOVE_ARG(type) const type&
# define BOOST_ASIO_MOVE_CAST(type) static_cast<const type&>
# define BOOST_ASIO_MOVE_CAST2(type1, type2) static_cast<const type1, type2&>
+# define BOOST_ASIO_MOVE_OR_LVALUE(type)
+# define BOOST_ASIO_MOVE_OR_LVALUE_TYPE(type) type&
#endif // !defined(BOOST_ASIO_MOVE_CAST)
// Support variadic templates on compilers known to allow it.
# endif // __has_feature(__cxx_variadic_templates__)
# endif // defined(__clang__)
# if defined(__GNUC__)
-# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_VARIADIC_TEMPLATES 1
# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
-# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_ASIO_MSVC)
# if (_MSC_VER >= 1900)
# endif // defined(BOOST_ASIO_MSVC)
# endif // !defined(BOOST_ASIO_DISABLE_VARIADIC_TEMPLATES)
#endif // !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+#if !defined(BOOST_ASIO_ELLIPSIS)
+# if defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+# define BOOST_ASIO_ELLIPSIS ...
+# else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+# define BOOST_ASIO_ELLIPSIS
+# endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+#endif // !defined(BOOST_ASIO_ELLIPSIS)
// Support deleted functions on compilers known to allow it.
#if !defined(BOOST_ASIO_DELETED)
# if defined(__clang__)
# if __has_feature(__cxx_constexpr__)
# define BOOST_ASIO_HAS_CONSTEXPR 1
-# endif // __has_feature(__cxx_constexr__)
+# endif // __has_feature(__cxx_constexpr__)
# endif // defined(__clang__)
# if defined(__GNUC__)
-# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_CONSTEXPR 1
# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
-# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_ASIO_MSVC)
# if (_MSC_VER >= 1900)
# define BOOST_ASIO_CONSTEXPR
# endif // defined(BOOST_ASIO_HAS_CONSTEXPR)
#endif // !defined(BOOST_ASIO_CONSTEXPR)
+#if !defined(BOOST_ASIO_STATIC_CONSTEXPR)
+# if defined(BOOST_ASIO_HAS_CONSTEXPR)
+# define BOOST_ASIO_STATIC_CONSTEXPR(type, assignment) \
+ static constexpr type assignment
+# else // defined(BOOST_ASIO_HAS_CONSTEXPR)
+# define BOOST_ASIO_STATIC_CONSTEXPR(type, assignment) \
+ static const type assignment
+# endif // defined(BOOST_ASIO_HAS_CONSTEXPR)
+#endif // !defined(BOOST_ASIO_STATIC_CONSTEXPR)
+#if !defined(BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT)
+# if defined(BOOST_ASIO_HAS_CONSTEXPR)
+# if defined(__GNUC__)
+# if (__GNUC__ >= 8)
+# define BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(type, name) \
+ static constexpr const type name{}
+# else // (__GNUC__ >= 8)
+# define BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(type, name) \
+ static const type name
+# endif // (__GNUC__ >= 8)
+# elif defined(BOOST_ASIO_MSVC)
+# define BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(type, name) \
+ static const type name
+# else // defined(BOOST_ASIO_MSVC)
+# define BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(type, name) \
+ static constexpr const type name{}
+# endif // defined(BOOST_ASIO_MSVC)
+# else // defined(BOOST_ASIO_HAS_CONSTEXPR)
+# define BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(type, name) \
+ static const type name
+# endif // defined(BOOST_ASIO_HAS_CONSTEXPR)
+#endif // !defined(BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT)
// Support noexcept on compilers known to allow it.
-#if !defined(BOOST_ASIO_NOEXCEPT)
+#if !defined(BOOST_ASIO_HAS_NOEXCEPT)
# if !defined(BOOST_ASIO_DISABLE_NOEXCEPT)
# if defined(BOOST_ASIO_HAS_BOOST_CONFIG) && (BOOST_VERSION >= 105300)
+# if !defined(BOOST_NO_NOEXCEPT)
+# define BOOST_ASIO_HAS_NOEXCEPT 1
+# endif // !defined(BOOST_NO_NOEXCEPT)
# define BOOST_ASIO_NOEXCEPT BOOST_NOEXCEPT
# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW BOOST_NOEXCEPT_OR_NOTHROW
+# define BOOST_ASIO_NOEXCEPT_IF(c) BOOST_NOEXCEPT_IF(c)
# elif defined(__clang__)
# if __has_feature(__cxx_noexcept__)
-# define BOOST_ASIO_NOEXCEPT noexcept(true)
-# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
+# define BOOST_ASIO_HAS_NOEXCEPT 1
# endif // __has_feature(__cxx_noexcept__)
# elif defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
-# define BOOST_ASIO_NOEXCEPT noexcept(true)
-# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
+# define BOOST_ASIO_HAS_NOEXCEPT 1
# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
# elif defined(BOOST_ASIO_MSVC)
# if (_MSC_VER >= 1900)
-# define BOOST_ASIO_NOEXCEPT noexcept(true)
-# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
+# define BOOST_ASIO_HAS_NOEXCEPT 1
# endif // (_MSC_VER >= 1900)
# endif // defined(BOOST_ASIO_MSVC)
# endif // !defined(BOOST_ASIO_DISABLE_NOEXCEPT)
# if !defined(BOOST_ASIO_NOEXCEPT)
-# define BOOST_ASIO_NOEXCEPT
# endif // !defined(BOOST_ASIO_NOEXCEPT)
# if !defined(BOOST_ASIO_NOEXCEPT_OR_NOTHROW)
-# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW throw()
# endif // !defined(BOOST_ASIO_NOEXCEPT_OR_NOTHROW)
+#endif // !defined(BOOST_ASIO_HAS_NOEXCEPT)
+#if !defined(BOOST_ASIO_NOEXCEPT)
+# if defined(BOOST_ASIO_HAS_NOEXCEPT)
+# define BOOST_ASIO_NOEXCEPT noexcept(true)
+# else // defined(BOOST_ASIO_HAS_NOEXCEPT)
+# define BOOST_ASIO_NOEXCEPT
+# endif // defined(BOOST_ASIO_HAS_NOEXCEPT)
#endif // !defined(BOOST_ASIO_NOEXCEPT)
+#if !defined(BOOST_ASIO_NOEXCEPT_OR_NOTHROW)
+# if defined(BOOST_ASIO_HAS_NOEXCEPT)
+# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
+# else // defined(BOOST_ASIO_HAS_NOEXCEPT)
+# define BOOST_ASIO_NOEXCEPT_OR_NOTHROW throw()
+# endif // defined(BOOST_ASIO_HAS_NOEXCEPT)
+#endif // !defined(BOOST_ASIO_NOEXCEPT_OR_NOTHROW)
+#if !defined(BOOST_ASIO_NOEXCEPT_IF)
+# if defined(BOOST_ASIO_HAS_NOEXCEPT)
+# define BOOST_ASIO_NOEXCEPT_IF(c) noexcept(c)
+# else // defined(BOOST_ASIO_HAS_NOEXCEPT)
+# define BOOST_ASIO_NOEXCEPT_IF(c)
+# endif // defined(BOOST_ASIO_HAS_NOEXCEPT)
+#endif // !defined(BOOST_ASIO_NOEXCEPT_IF)
// Support automatic type deduction on compilers known to support it.
#if !defined(BOOST_ASIO_HAS_DECLTYPE)
# endif // __has_feature(__cxx_decltype__)
# endif // defined(__clang__)
# if defined(__GNUC__)
-# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_DECLTYPE 1
# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
-# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_ASIO_MSVC)
# if (_MSC_VER >= 1800)
# if defined(__clang__)
# if __has_feature(__cxx_return_type_deduction__)
# define BOOST_ASIO_HAS_RETURN_TYPE_DEDUCTION 1
-# endif // __has_feature(__cxx_alias_templates__)
+# endif // __has_feature(__cxx_return_type_deduction__)
# elif (__cplusplus >= 201402)
# define BOOST_ASIO_HAS_RETURN_TYPE_DEDUCTION 1
# elif defined(__cpp_return_type_deduction)
# endif // !defined(BOOST_ASIO_DISABLE_CONCEPTS)
#endif // !defined(BOOST_ASIO_HAS_CONCEPTS)
+// Support template variables on compilers known to allow it.
+#if !defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
+# if !defined(BOOST_ASIO_DISABLE_VARIABLE_TEMPLATES)
+# if defined(__clang__)
+# if (__cplusplus >= 201402)
+# if __has_feature(__cxx_variable_templates__)
+# define BOOST_ASIO_HAS_VARIABLE_TEMPLATES 1
+# endif // __has_feature(__cxx_variable_templates__)
+# endif // (__cplusplus >= 201402)
+# endif // defined(__clang__)
+# if defined(__GNUC__) && !defined(__INTEL_COMPILER)
+# if (__GNUC__ >= 6)
+# if (__cplusplus >= 201402)
+# define BOOST_ASIO_HAS_VARIABLE_TEMPLATES 1
+# endif // (__cplusplus >= 201402)
+# endif // (__GNUC__ >= 6)
+# endif // defined(__GNUC__) && !defined(__INTEL_COMPILER)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1901)
+# define BOOST_ASIO_HAS_VARIABLE_TEMPLATES 1
+# endif // (_MSC_VER >= 1901)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_VARIABLE_TEMPLATES)
+#endif // !defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
+
+// Support SFINAEd template variables on compilers known to allow it.
+#if !defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
+# if !defined(BOOST_ASIO_DISABLE_SFINAE_VARIABLE_TEMPLATES)
+# if defined(__clang__)
+# if (__cplusplus >= 201703)
+# if __has_feature(__cxx_variable_templates__)
+# define BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES 1
+# endif // __has_feature(__cxx_variable_templates__)
+# endif // (__cplusplus >= 201703)
+# endif // defined(__clang__)
+# if defined(__GNUC__)
+# if ((__GNUC__ == 8) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 8)
+# if (__cplusplus >= 201402)
+# define BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES 1
+# endif // (__cplusplus >= 201402)
+# endif // ((__GNUC__ == 8) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 8)
+# endif // defined(__GNUC__)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1901)
+# define BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES 1
+# endif // (_MSC_VER >= 1901)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_SFINAE_VARIABLE_TEMPLATES)
+#endif // !defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
+
+// Support SFINAE use of constant expressions on compilers known to allow it.
+#if !defined(BOOST_ASIO_HAS_CONSTANT_EXPRESSION_SFINAE)
+# if !defined(BOOST_ASIO_DISABLE_CONSTANT_EXPRESSION_SFINAE)
+# if defined(__clang__)
+# if (__cplusplus >= 201402)
+# define BOOST_ASIO_HAS_CONSTANT_EXPRESSION_SFINAE 1
+# endif // (__cplusplus >= 201402)
+# endif // defined(__clang__)
+# if defined(__GNUC__) && !defined(__INTEL_COMPILER)
+# if (__GNUC__ >= 7)
+# if (__cplusplus >= 201402)
+# define BOOST_ASIO_HAS_CONSTANT_EXPRESSION_SFINAE 1
+# endif // (__cplusplus >= 201402)
+# endif // (__GNUC__ >= 7)
+# endif // defined(__GNUC__) && !defined(__INTEL_COMPILER)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1901)
+# define BOOST_ASIO_HAS_CONSTANT_EXPRESSION_SFINAE 1
+# endif // (_MSC_VER >= 1901)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_CONSTANT_EXPRESSION_SFINAE)
+#endif // !defined(BOOST_ASIO_HAS_CONSTANT_EXPRESSION_SFINAE)
+
+// Enable workarounds for lack of working expression SFINAE.
+#if !defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+# if !defined(BOOST_ASIO_DISABLE_WORKING_EXPRESSION_SFINAE)
+# if !defined(BOOST_ASIO_MSVC) && !defined(__INTEL_COMPILER)
+# if (__cplusplus >= 201103)
+# define BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE 1
+# endif // (__cplusplus >= 201103)
+# endif // !defined(BOOST_ASIO_MSVC) && !defined(__INTEL_COMPILER)
+# endif // !defined(BOOST_ASIO_DISABLE_WORKING_EXPRESSION_SFINAE)
+#endif // !defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+
+// Support ref-qualified functions on compilers known to allow it.
+#if !defined(BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS)
+# if !defined(BOOST_ASIO_DISABLE_REF_QUALIFIED_FUNCTIONS)
+# if defined(__clang__)
+# if __has_feature(__cxx_reference_qualified_functions__)
+# define BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS 1
+# endif // __has_feature(__cxx_reference_qualified_functions__)
+# endif // defined(__clang__)
+# if defined(__GNUC__)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 9)) || (__GNUC__ > 4)
+# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+# define BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS 1
+# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 9)) || (__GNUC__ > 4)
+# endif // defined(__GNUC__)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1900)
+# define BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS 1
+# endif // (_MSC_VER >= 1900)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_REF_QUALIFIED_FUNCTIONS)
+#endif // !defined(BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS)
+#if defined(BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS)
+# if !defined(BOOST_ASIO_LVALUE_REF_QUAL)
+# define BOOST_ASIO_LVALUE_REF_QUAL &
+# endif // !defined(BOOST_ASIO_LVALUE_REF_QUAL)
+# if !defined(BOOST_ASIO_RVALUE_REF_QUAL)
+# define BOOST_ASIO_RVALUE_REF_QUAL &&
+# endif // !defined(BOOST_ASIO_RVALUE_REF_QUAL)
+#else // defined(BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS)
+# if !defined(BOOST_ASIO_LVALUE_REF_QUAL)
+# define BOOST_ASIO_LVALUE_REF_QUAL
+# endif // !defined(BOOST_ASIO_LVALUE_REF_QUAL)
+# if !defined(BOOST_ASIO_RVALUE_REF_QUAL)
+# define BOOST_ASIO_RVALUE_REF_QUAL
+# endif // !defined(BOOST_ASIO_RVALUE_REF_QUAL)
+#endif // defined(BOOST_ASIO_HAS_REF_QUALIFIED_FUNCTIONS)
+
// Standard library support for system errors.
# if !defined(BOOST_ASIO_DISABLE_STD_SYSTEM_ERROR)
# if defined(__clang__)
# define BOOST_ASIO_HAS_STD_ATOMIC 1
# endif // __has_include(<atomic>)
# endif // (__clang_major__ >= 10)
-# endif /// defined(__apple_build_version__) && defined(_LIBCPP_VERSION)
+# endif // defined(__apple_build_version__) && defined(_LIBCPP_VERSION)
# endif // defined(__clang__)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
# endif // (__cplusplus >= 201103)
# endif // defined(__clang__)
# if defined(__GNUC__)
-# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_TYPE_TRAITS 1
# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
-# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_ASIO_MSVC)
# if (_MSC_VER >= 1700)
# if defined(__clang__)
# if __has_feature(__cxx_nullptr__)
# define BOOST_ASIO_HAS_NULLPTR 1
-# endif // __has_feature(__cxx_rvalue_references__)
+# endif // __has_feature(__cxx_nullptr__)
# elif defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
# elif (__cplusplus >= 201103)
# if __has_include(<future>)
# define BOOST_ASIO_HAS_STD_FUTURE 1
-# endif // __has_include(<mutex>)
+# endif // __has_include(<future>)
# endif // (__cplusplus >= 201103)
# endif // defined(__clang__)
# if defined(__GNUC__)
# endif // !defined(BOOST_ASIO_DISABLE_STD_INVOKE_RESULT)
#endif // !defined(BOOST_ASIO_HAS_STD_INVOKE_RESULT)
+// Standard library support for std::exception_ptr and std::current_exception.
+#if !defined(BOOST_ASIO_HAS_STD_EXCEPTION_PTR)
+# if !defined(BOOST_ASIO_DISABLE_STD_EXCEPTION_PTR)
+# if defined(__clang__)
+# if defined(BOOST_ASIO_HAS_CLANG_LIBCXX)
+# define BOOST_ASIO_HAS_STD_EXCEPTION_PTR 1
+# elif (__cplusplus >= 201103)
+# define BOOST_ASIO_HAS_STD_EXCEPTION_PTR 1
+# endif // (__cplusplus >= 201103)
+# elif defined(__GNUC__)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
+# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+# define BOOST_ASIO_HAS_STD_EXCEPTION_PTR 1
+# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
+# endif // defined(__GNUC__)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1800)
+# define BOOST_ASIO_HAS_STD_EXCEPTION_PTR 1
+# endif // (_MSC_VER >= 1800)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_STD_EXCEPTION_PTR)
+#endif // !defined(BOOST_ASIO_HAS_STD_EXCEPTION_PTR)
+
+// Standard library support for std::nested_exception.
+#if !defined(BOOST_ASIO_HAS_STD_NESTED_EXCEPTION)
+# if !defined(BOOST_ASIO_DISABLE_STD_NESTED_EXCEPTION)
+# if defined(__clang__)
+# if defined(BOOST_ASIO_HAS_CLANG_LIBCXX)
+# define BOOST_ASIO_HAS_STD_NESTED_EXCEPTION 1
+# elif (__cplusplus >= 201103)
+# define BOOST_ASIO_HAS_STD_NESTED_EXCEPTION 1
+# endif // (__cplusplus >= 201103)
+# elif defined(__GNUC__)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
+# if (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+# define BOOST_ASIO_HAS_STD_NESTED_EXCEPTION 1
+# endif // (__cplusplus >= 201103) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
+# endif // defined(__GNUC__)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1900)
+# define BOOST_ASIO_HAS_STD_NESTED_EXCEPTION 1
+# endif // (_MSC_VER >= 1900)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_STD_NESTED_EXCEPTION)
+#endif // !defined(BOOST_ASIO_HAS_STD_NESTED_EXCEPTION)
+
+// Standard library support for std::any.
+#if !defined(BOOST_ASIO_HAS_STD_ANY)
+# if !defined(BOOST_ASIO_DISABLE_STD_ANY)
+# if defined(__clang__)
+# if (__cplusplus >= 201703)
+# if __has_include(<any>)
+# define BOOST_ASIO_HAS_STD_ANY 1
+# endif // __has_include(<any>)
+# endif // (__cplusplus >= 201703)
+# elif defined(__GNUC__)
+# if (__GNUC__ >= 7)
+# if (__cplusplus >= 201703)
+# define BOOST_ASIO_HAS_STD_ANY 1
+# endif // (__cplusplus >= 201703)
+# endif // (__GNUC__ >= 7)
+# endif // defined(__GNUC__)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1910) && (_MSVC_LANG >= 201703)
+# define BOOST_ASIO_HAS_STD_ANY 1
+# endif // (_MSC_VER >= 1910) && (_MSVC_LANG >= 201703)
+# endif // defined(BOOST_ASIO_MSVC)
+# endif // !defined(BOOST_ASIO_DISABLE_STD_ANY)
+#endif // !defined(BOOST_ASIO_HAS_STD_ANY)
+
+// Standard library support for std::source_location.
+#if !defined(BOOST_ASIO_HAS_STD_SOURCE_LOCATION)
+# if !defined(BOOST_ASIO_DISABLE_STD_SOURCE_LOCATION)
+// ...
+# endif // !defined(BOOST_ASIO_DISABLE_STD_SOURCE_LOCATION)
+#endif // !defined(BOOST_ASIO_HAS_STD_SOURCE_LOCATION)
+
+// Standard library support for std::experimental::source_location.
+#if !defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_SOURCE_LOCATION)
+# if !defined(BOOST_ASIO_DISABLE_STD_EXPERIMENTAL_SOURCE_LOCATION)
+# if defined(__GNUC__)
+# if (__cplusplus >= 201709)
+# if __has_include(<experimental/source_location>)
+# define BOOST_ASIO_HAS_STD_EXPERIMENTAL_SOURCE_LOCATION 1
+# endif // __has_include(<experimental/source_location>)
+# endif // (__cplusplus >= 201709)
+# endif // defined(__GNUC__)
+# endif // !defined(BOOST_ASIO_DISABLE_STD_EXPERIMENTAL_SOURCE_LOCATION)
+#endif // !defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_SOURCE_LOCATION)
+
+// Standard library has a source_location that we can use.
+#if !defined(BOOST_ASIO_HAS_SOURCE_LOCATION)
+# if !defined(BOOST_ASIO_DISABLE_SOURCE_LOCATION)
+# if defined(BOOST_ASIO_HAS_STD_SOURCE_LOCATION)
+# define BOOST_ASIO_HAS_SOURCE_LOCATION 1
+# elif defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_SOURCE_LOCATION)
+# define BOOST_ASIO_HAS_SOURCE_LOCATION 1
+# endif // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_SOURCE_LOCATION)
+# endif // !defined(BOOST_ASIO_DISABLE_SOURCE_LOCATION)
+#endif // !defined(BOOST_ASIO_HAS_SOURCE_LOCATION)
+
// Windows App target. Windows but with a limited API.
#if !defined(BOOST_ASIO_WINDOWS_APP)
# if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0603)
// Windows: target OS version.
#if defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
# if !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
-# if defined(_MSC_VER) || defined(__BORLANDC__)
+# if defined(_MSC_VER) || (defined(__BORLANDC__) && !defined(__clang__))
# pragma message( \
"Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately. For example:\n"\
"- add -D_WIN32_WINNT=0x0601 to the compiler command line; or\n"\
"- add _WIN32_WINNT=0x0601 to your project's Preprocessor Definitions.\n"\
"Assuming _WIN32_WINNT=0x0601 (i.e. Windows 7 target).")
-# else // defined(_MSC_VER) || defined(__BORLANDC__)
+# else // defined(_MSC_VER) || (defined(__BORLANDC__) && !defined(__clang__))
# warning Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately.
# warning For example, add -D_WIN32_WINNT=0x0601 to the compiler command line.
# warning Assuming _WIN32_WINNT=0x0601 (i.e. Windows 7 target).
-# endif // defined(_MSC_VER) || defined(__BORLANDC__)
+# endif // defined(_MSC_VER) || (defined(__BORLANDC__) && !defined(__clang__))
# define _WIN32_WINNT 0x0601
# endif // !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
# if defined(_MSC_VER)
// UNIX domain sockets.
#if !defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
# if !defined(BOOST_ASIO_DISABLE_LOCAL_SOCKETS)
-# if !defined(BOOST_ASIO_WINDOWS) \
- && !defined(BOOST_ASIO_WINDOWS_RUNTIME) \
- && !defined(__CYGWIN__)
+# if !defined(BOOST_ASIO_WINDOWS_RUNTIME)
# define BOOST_ASIO_HAS_LOCAL_SOCKETS 1
-# endif // !defined(BOOST_ASIO_WINDOWS)
- // && !defined(BOOST_ASIO_WINDOWS_RUNTIME)
- // && !defined(__CYGWIN__)
+# endif // !defined(BOOST_ASIO_WINDOWS_RUNTIME)
# endif // !defined(BOOST_ASIO_DISABLE_LOCAL_SOCKETS)
#endif // !defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
# if (__GNUC__ >= 3)
# define BOOST_ASIO_HAS_HANDLER_HOOKS 1
# endif // (__GNUC__ >= 3)
-# elif !defined(__BORLANDC__)
+# elif !defined(__BORLANDC__) || defined(__clang__)
# define BOOST_ASIO_HAS_HANDLER_HOOKS 1
-# endif // !defined(__BORLANDC__)
+# endif // !defined(__BORLANDC__) || defined(__clang__)
# endif // !defined(BOOST_ASIO_DISABLE_HANDLER_HOOKS)
#endif // !defined(BOOST_ASIO_HAS_HANDLER_HOOKS)
# define BOOST_ASIO_UNUSED_VARIABLE
#endif // !defined(BOOST_ASIO_UNUSED_VARIABLE)
-// Support co_await on compilers known to allow it.
+// Support the co_await keyword on compilers known to allow it.
#if !defined(BOOST_ASIO_HAS_CO_AWAIT)
# if !defined(BOOST_ASIO_DISABLE_CO_AWAIT)
# if defined(BOOST_ASIO_MSVC)
-# if (_MSC_FULL_VER >= 190023506)
+# if (_MSC_VER >= 1928) && (_MSVC_LANG >= 201705)
+# define BOOST_ASIO_HAS_CO_AWAIT 1
+# elif (_MSC_FULL_VER >= 190023506)
# if defined(_RESUMABLE_FUNCTIONS_SUPPORTED)
# define BOOST_ASIO_HAS_CO_AWAIT 1
# endif // defined(_RESUMABLE_FUNCTIONS_SUPPORTED)
# endif // (_MSC_FULL_VER >= 190023506)
# endif // defined(BOOST_ASIO_MSVC)
+# if defined(__clang__)
+# if (__cplusplus >= 201703) && (__cpp_coroutines >= 201703)
+# if __has_include(<experimental/coroutine>)
+# define BOOST_ASIO_HAS_CO_AWAIT 1
+# endif // __has_include(<experimental/coroutine>)
+# endif // (__cplusplus >= 201703) && (__cpp_coroutines >= 201703)
+# elif defined(__GNUC__)
+# if (__cplusplus >= 201709) && (__cpp_impl_coroutine >= 201902)
+# if __has_include(<coroutine>)
+# define BOOST_ASIO_HAS_CO_AWAIT 1
+# endif // __has_include(<coroutine>)
+# endif // (__cplusplus >= 201709) && (__cpp_impl_coroutine >= 201902)
+# endif // defined(__GNUC__)
# endif // !defined(BOOST_ASIO_DISABLE_CO_AWAIT)
-# if defined(__clang__)
-# if (__cplusplus >= 201703) && (__cpp_coroutines >= 201703)
-# if __has_include(<experimental/coroutine>)
-# define BOOST_ASIO_HAS_CO_AWAIT 1
-# endif // __has_include(<experimental/coroutine>)
-# endif // (__cplusplus >= 201703) && (__cpp_coroutines >= 201703)
-# endif // defined(__clang__)
#endif // !defined(BOOST_ASIO_HAS_CO_AWAIT)
+// Standard library support for coroutines.
+#if !defined(BOOST_ASIO_HAS_STD_COROUTINE)
+# if !defined(BOOST_ASIO_DISABLE_STD_COROUTINE)
+# if defined(BOOST_ASIO_MSVC)
+# if (_MSC_VER >= 1928) && (_MSVC_LANG >= 201705)
+# define BOOST_ASIO_HAS_STD_COROUTINE 1
+# endif // (_MSC_VER >= 1928) && (_MSVC_LANG >= 201705)
+# endif // defined(BOOST_ASIO_MSVC)
+# if defined(__GNUC__)
+# if (__cplusplus >= 201709) && (__cpp_impl_coroutine >= 201902)
+# if __has_include(<coroutine>)
+# define BOOST_ASIO_HAS_STD_COROUTINE 1
+# endif // __has_include(<coroutine>)
+# endif // (__cplusplus >= 201709) && (__cpp_impl_coroutine >= 201902)
+# endif // defined(__GNUC__)
+# endif // !defined(BOOST_ASIO_DISABLE_STD_COROUTINE)
+#endif // !defined(BOOST_ASIO_HAS_STD_COROUTINE)
+
+// Compiler support for the the [[nodiscard]] attribute.
+#if !defined(BOOST_ASIO_NODISCARD)
+# if defined(__has_cpp_attribute)
+# if __has_cpp_attribute(nodiscard)
+# if (__cplusplus >= 201703)
+# define BOOST_ASIO_NODISCARD [[nodiscard]]
+# endif // (__cplusplus >= 201703)
+# endif // __has_cpp_attribute(nodiscard)
+# endif // defined(__has_cpp_attribute)
+#endif // !defined(BOOST_ASIO_NODISCARD)
+#if !defined(BOOST_ASIO_NODISCARD)
+# define BOOST_ASIO_NODISCARD
+#endif // !defined(BOOST_ASIO_NODISCARD)
+
+// Kernel support for MSG_NOSIGNAL.
+#if !defined(BOOST_ASIO_HAS_MSG_NOSIGNAL)
+# if defined(__linux__)
+# define BOOST_ASIO_HAS_MSG_NOSIGNAL 1
+# elif defined(_POSIX_VERSION)
+# if (_POSIX_VERSION >= 200809L)
+# define BOOST_ASIO_HAS_MSG_NOSIGNAL 1
+# endif // _POSIX_VERSION >= 200809L
+# endif // defined(_POSIX_VERSION)
+#endif // !defined(BOOST_ASIO_HAS_MSG_NOSIGNAL)
+
#endif // BOOST_ASIO_DETAIL_CONFIG_HPP
projects / ceph.git / blobdiff