1 // Compatibility symbols for previous versions, C++0x bits -*- C++ -*-
3 // Copyright (C) 2009-2015 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 #define _GLIBCXX_COMPATIBILITY_CXX0X
26 #define _GLIBCXX_USE_CXX11_ABI 0
27 #define error_category error_categoryxx
28 #define system_category system_categoryxx
29 #define generic_category generic_categoryxx
32 #include <system_error>
35 #undef system_category
36 #undef generic_category
39 #if __cplusplus < 201103L
40 # error "compatibility-c++0x.cc must be compiled with -std=gnu++0x"
43 #ifdef _GLIBCXX_SHARED
45 namespace std _GLIBCXX_VISIBILITY(default)
48 // <mutex> exported std::lock_error
49 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
50 class lock_error : public exception
54 _GLIBCXX_CONST what() const throw();
58 lock_error::what() const throw()
59 { return "std::lock_error"; }
62 // We need these due to the symbols exported since GLIBCXX_3.4.10.
63 // See libstdc++/41662 for details.
65 #ifndef _GLIBCXX_LONG_DOUBLE_COMPAT_IMPL
69 size_t operator()(string) const;
73 hash<string>::operator()(string __s) const
74 { return _Hash_impl::hash(__s.data(), __s.length()); }
77 struct hash<const string&>
79 size_t operator()(const string&) const;
83 hash<const string&>::operator()(const string& __s) const
84 { return _Hash_impl::hash(__s.data(), __s.length()); }
86 #ifdef _GLIBCXX_USE_WCHAR_T
90 size_t operator()(wstring) const;
94 hash<wstring>::operator()(wstring __s) const
95 { return _Hash_impl::hash(__s.data(), __s.length() * sizeof(wchar_t)); }
98 struct hash<const wstring&>
100 size_t operator()(const wstring&) const;
104 hash<const wstring&>::operator()(const wstring& __s) const
105 { return _Hash_impl::hash(__s.data(), __s.length() * sizeof(wchar_t)); }
110 struct hash<error_code>
112 size_t operator()(error_code) const;
116 hash<error_code>::operator()(error_code __e) const
118 const size_t __tmp = std::_Hash_impl::hash(__e._M_value);
119 return std::_Hash_impl::__hash_combine(__e._M_cat, __tmp);
123 // <chrono> changes is_monotonic to is_steady.
128 static constexpr bool is_monotonic = false;
130 constexpr bool system_clock::is_monotonic;
131 } // namespace chrono
133 _GLIBCXX_BEGIN_NAMESPACE_VERSION
134 // gcc-5 replaces this with _V2::error_category
138 error_category() noexcept;
140 virtual ~error_category();
142 error_category(const error_category&) = delete;
143 error_category& operator=(const error_category&) = delete;
146 name() const noexcept = 0;
149 message(int) const = 0;
151 virtual error_condition
152 default_error_condition(int __i) const noexcept;
155 equivalent(int __i, const error_condition& __cond) const noexcept;
158 equivalent(const error_code& __code, int __i) const noexcept;
161 operator<(const error_category& __other) const noexcept
162 { return less<const error_category*>()(this, &__other); }
165 operator==(const error_category& __other) const noexcept
166 { return this == &__other; }
169 operator!=(const error_category& __other) const noexcept
170 { return this != &__other; }
172 _GLIBCXX_END_NAMESPACE_VERSION
175 // LWG 2145 changes this constructor to constexpr i.e. inline
176 error_category::error_category() noexcept = default;
178 error_category::~error_category() noexcept = default;
184 struct generic_error_category : public std::error_category
187 name() const noexcept
188 { return "generic"; }
193 // XXX locale issues: how does one get or set loc.
194 // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
195 return string(strerror(i));
199 struct system_error_category : public std::error_category
202 name() const noexcept
208 // XXX locale issues: how does one get or set loc.
209 // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
210 return string(strerror(i));
214 const generic_error_category generic_category_instance{};
215 const system_error_category system_category_instance{};
218 _GLIBCXX_BEGIN_NAMESPACE_VERSION
219 const error_category&
220 system_category() noexcept { return system_category_instance; }
222 const error_category&
223 generic_category() noexcept { return generic_category_instance; }
227 _GLIBCXX_CONST const error_categoryxx& system_category() noexcept;
228 _GLIBCXX_CONST const error_categoryxx& generic_category() noexcept;
230 _GLIBCXX_END_NAMESPACE_VERSION
233 error_category::default_error_condition(int __i) const noexcept
235 if (*this == system_category())
236 return error_condition(__i, _V2::system_category());
237 return error_condition(__i, _V2::generic_category());
241 error_category::equivalent(int __i,
242 const error_condition& __cond) const noexcept
243 { return default_error_condition(__i) == __cond; }
246 error_category::equivalent(const error_code& __code, int __i) const noexcept
248 if (*this == system_category()
249 && __code.category() == _V2::system_category())
250 return __code.value() == __i;
251 if (*this == generic_category()
252 && __code.category() == _V2::generic_category())
253 return __code.value() == __i;