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| 20effc67 TL |
1 | #ifndef BOOST_SYSTEM_DETAIL_SYSTEM_CATEGORY_HPP_INCLUDED |
| 2 | #define BOOST_SYSTEM_DETAIL_SYSTEM_CATEGORY_HPP_INCLUDED | |
| 3 | ||
| 4 | // Copyright Beman Dawes 2006, 2007 | |
| 5 | // Copyright Christoper Kohlhoff 2007 | |
| 6 | // Copyright Peter Dimov 2017, 2018 | |
| 7 | // | |
| 8 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 9 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 10 | // | |
| 11 | // See library home page at http://www.boost.org/libs/system | |
| 12 | ||
| 13 | #include <boost/system/detail/error_category.hpp> | |
| 14 | #include <boost/system/detail/config.hpp> | |
| 15 | #include <boost/config.hpp> | |
| 16 | ||
| 17 | namespace boost | |
| 18 | { | |
| 19 | ||
| 20 | namespace system | |
| 21 | { | |
| 22 | ||
| 23 | namespace detail | |
| 24 | { | |
| 25 | ||
| 26 | // system_error_category | |
| 27 | ||
| 28 | #if ( defined( BOOST_GCC ) && BOOST_GCC >= 40600 ) || defined( BOOST_CLANG ) | |
| 29 | #pragma GCC diagnostic push | |
| 30 | #pragma GCC diagnostic ignored "-Wnon-virtual-dtor" | |
| 31 | #endif | |
| 32 | ||
| 33 | class BOOST_SYMBOL_VISIBLE system_error_category: public error_category | |
| 34 | { | |
| 35 | public: | |
| 36 | ||
| 37 | BOOST_SYSTEM_CONSTEXPR system_error_category() BOOST_NOEXCEPT: | |
| 38 | error_category( detail::system_category_id ) | |
| 39 | { | |
| 40 | } | |
| 41 | ||
| 42 | const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE | |
| 43 | { | |
| 44 | return "system"; | |
| 45 | } | |
| 46 | ||
| 47 | error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT BOOST_OVERRIDE; | |
| 48 | ||
| 49 | std::string message( int ev ) const BOOST_OVERRIDE; | |
| 50 | char const * message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT BOOST_OVERRIDE; | |
| 51 | }; | |
| 52 | ||
| 53 | #if ( defined( BOOST_GCC ) && BOOST_GCC >= 40600 ) || defined( BOOST_CLANG ) | |
| 54 | #pragma GCC diagnostic pop | |
| 55 | #endif | |
| 56 | ||
| 57 | } // namespace detail | |
| 58 | ||
| 59 | // system_category() | |
| 60 | ||
| 61 | #if defined(BOOST_SYSTEM_HAS_CONSTEXPR) | |
| 62 | ||
| 63 | namespace detail | |
| 64 | { | |
| 65 | ||
| 66 | template<class T> struct BOOST_SYMBOL_VISIBLE system_cat_holder | |
| 67 | { | |
| 68 | static constexpr system_error_category instance{}; | |
| 69 | }; | |
| 70 | ||
| 71 | // Before C++17 it was mandatory to redeclare all static constexpr | |
| 72 | #if defined(BOOST_NO_CXX17_INLINE_VARIABLES) | |
| 73 | template<class T> constexpr system_error_category system_cat_holder<T>::instance; | |
| 74 | #endif | |
| 75 | ||
| 76 | } // namespace detail | |
| 77 | ||
| 78 | constexpr error_category const & system_category() BOOST_NOEXCEPT | |
| 79 | { | |
| 80 | return detail::system_cat_holder<void>::instance; | |
| 81 | } | |
| 82 | ||
| 83 | #else // #if defined(BOOST_SYSTEM_HAS_CONSTEXPR) | |
| 84 | ||
| 85 | #if !defined(__SUNPRO_CC) // trailing __global is not supported | |
| 86 | inline error_category const & system_category() BOOST_NOEXCEPT BOOST_SYMBOL_VISIBLE; | |
| 87 | #endif | |
| 88 | ||
| 89 | inline error_category const & system_category() BOOST_NOEXCEPT | |
| 90 | { | |
| 91 | static const detail::system_error_category instance; | |
| 92 | return instance; | |
| 93 | } | |
| 94 | ||
| 95 | #endif // #if defined(BOOST_SYSTEM_HAS_CONSTEXPR) | |
| 96 | ||
| 97 | // deprecated synonyms | |
| 98 | ||
| 99 | #ifdef BOOST_SYSTEM_ENABLE_DEPRECATED | |
| 100 | ||
| 101 | BOOST_SYSTEM_DEPRECATED("please use system_category()") inline const error_category & get_system_category() { return system_category(); } | |
| 102 | BOOST_SYSTEM_DEPRECATED("please use system_category()") static const error_category & native_ecat BOOST_ATTRIBUTE_UNUSED = system_category(); | |
| 103 | ||
| 104 | #endif | |
| 105 | ||
| 106 | } // namespace system | |
| 107 | ||
| 108 | } // namespace boost | |
| 109 | ||
| 110 | #endif // #ifndef BOOST_SYSTEM_DETAIL_SYSTEM_CATEGORY_HPP_INCLUDED |