| // Compatibility symbols for previous versions, C++0x bits -*- C++ -*- |
| |
| // Copyright (C) 2009-2017 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| #define _GLIBCXX_COMPATIBILITY_CXX0X |
| #define _GLIBCXX_USE_CXX11_ABI 0 |
| #define error_category error_categoryxx |
| #define system_category system_categoryxx |
| #define generic_category generic_categoryxx |
| #define _V2 _V2xx |
| #include <string> |
| #include <system_error> |
| #include <cstring> |
| #undef error_category |
| #undef system_category |
| #undef generic_category |
| #undef _V2 |
| |
| #if __cplusplus < 201103L |
| # error "compatibility-c++0x.cc must be compiled with -std=gnu++0x" |
| #endif |
| |
| #ifdef _GLIBCXX_SHARED |
| |
| namespace std _GLIBCXX_VISIBILITY(default) |
| { |
| // gcc-4.4.0 |
| // <mutex> exported std::lock_error |
| #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) |
| class lock_error : public exception |
| { |
| public: |
| virtual const char* |
| _GLIBCXX_CONST what() const throw(); |
| }; |
| |
| const char* |
| lock_error::what() const throw() |
| { return "std::lock_error"; } |
| #endif |
| |
| // We need these due to the symbols exported since GLIBCXX_3.4.10. |
| // See libstdc++/41662 for details. |
| |
| #ifndef _GLIBCXX_LONG_DOUBLE_COMPAT_IMPL |
| template<> |
| struct hash<string> |
| { |
| size_t operator()(string) const; |
| }; |
| |
| size_t |
| hash<string>::operator()(string __s) const |
| { return _Hash_impl::hash(__s.data(), __s.length()); } |
| |
| template<> |
| struct hash<const string&> |
| { |
| size_t operator()(const string&) const; |
| }; |
| |
| size_t |
| hash<const string&>::operator()(const string& __s) const |
| { return _Hash_impl::hash(__s.data(), __s.length()); } |
| |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| template<> |
| struct hash<wstring> |
| { |
| size_t operator()(wstring) const; |
| }; |
| |
| size_t |
| hash<wstring>::operator()(wstring __s) const |
| { return _Hash_impl::hash(__s.data(), __s.length() * sizeof(wchar_t)); } |
| |
| template<> |
| struct hash<const wstring&> |
| { |
| size_t operator()(const wstring&) const; |
| }; |
| |
| size_t |
| hash<const wstring&>::operator()(const wstring& __s) const |
| { return _Hash_impl::hash(__s.data(), __s.length() * sizeof(wchar_t)); } |
| #endif |
| #endif |
| |
| template<> |
| struct hash<error_code> |
| { |
| size_t operator()(error_code) const; |
| }; |
| |
| size_t |
| hash<error_code>::operator()(error_code __e) const |
| { |
| const size_t __tmp = std::_Hash_impl::hash(__e._M_value); |
| return std::_Hash_impl::__hash_combine(__e._M_cat, __tmp); |
| } |
| |
| // gcc-4.7.0 |
| // <chrono> changes is_monotonic to is_steady. |
| namespace chrono |
| { |
| struct system_clock |
| { |
| static constexpr bool is_monotonic = false; |
| }; |
| constexpr bool system_clock::is_monotonic; |
| } // namespace chrono |
| |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| // gcc-5 replaces this with _V2::error_category |
| class error_category |
| { |
| public: |
| error_category() noexcept; |
| |
| virtual ~error_category(); |
| |
| error_category(const error_category&) = delete; |
| error_category& operator=(const error_category&) = delete; |
| |
| virtual const char* |
| name() const noexcept = 0; |
| |
| virtual string |
| message(int) const = 0; |
| |
| virtual error_condition |
| default_error_condition(int __i) const noexcept; |
| |
| virtual bool |
| equivalent(int __i, const error_condition& __cond) const noexcept; |
| |
| virtual bool |
| equivalent(const error_code& __code, int __i) const noexcept; |
| |
| bool |
| operator<(const error_category& __other) const noexcept |
| { return less<const error_category*>()(this, &__other); } |
| |
| bool |
| operator==(const error_category& __other) const noexcept |
| { return this == &__other; } |
| |
| bool |
| operator!=(const error_category& __other) const noexcept |
| { return this != &__other; } |
| }; |
| _GLIBCXX_END_NAMESPACE_VERSION |
| |
| // gcc-4.9.0 |
| // LWG 2145 changes this constructor to constexpr i.e. inline |
| error_category::error_category() noexcept = default; |
| |
| error_category::~error_category() noexcept = default; |
| |
| namespace |
| { |
| using std::string; |
| |
| struct generic_error_category : public std::error_category |
| { |
| virtual const char* |
| name() const noexcept |
| { return "generic"; } |
| |
| virtual string |
| message(int i) const |
| { |
| // XXX locale issues: how does one get or set loc. |
| // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc) |
| return string(strerror(i)); |
| } |
| }; |
| |
| struct system_error_category : public std::error_category |
| { |
| virtual const char* |
| name() const noexcept |
| { return "system"; } |
| |
| virtual string |
| message(int i) const |
| { |
| // XXX locale issues: how does one get or set loc. |
| // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc) |
| return string(strerror(i)); |
| } |
| }; |
| |
| const generic_error_category generic_category_instance{}; |
| const system_error_category system_category_instance{}; |
| } |
| |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| const error_category& |
| system_category() noexcept { return system_category_instance; } |
| |
| const error_category& |
| generic_category() noexcept { return generic_category_instance; } |
| |
| namespace _V2 |
| { |
| _GLIBCXX_CONST const error_categoryxx& system_category() noexcept; |
| _GLIBCXX_CONST const error_categoryxx& generic_category() noexcept; |
| } |
| _GLIBCXX_END_NAMESPACE_VERSION |
| |
| error_condition |
| error_category::default_error_condition(int __i) const noexcept |
| { |
| if (*this == system_category()) |
| return error_condition(__i, _V2::system_category()); |
| return error_condition(__i, _V2::generic_category()); |
| } |
| |
| bool |
| error_category::equivalent(int __i, |
| const error_condition& __cond) const noexcept |
| { return default_error_condition(__i) == __cond; } |
| |
| bool |
| error_category::equivalent(const error_code& __code, int __i) const noexcept |
| { |
| if (*this == system_category() |
| && __code.category() == _V2::system_category()) |
| return __code.value() == __i; |
| if (*this == generic_category() |
| && __code.category() == _V2::generic_category()) |
| return __code.value() == __i; |
| return false; |
| } |
| |
| } |
| #endif |