| // Function-Based Exception Support -*- C++ -*- | |
| // Copyright (C) 2001-2026 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/>. | |
| /** @file bits/stdexcept_throw.h | |
| * This is an internal header file, included by other library headers. | |
| * Do not attempt to use it directly. @headername{stdexcept} | |
| */ | |
| // | |
| // ISO C++ 14882: 19.1 Exception classes | |
| // | |
| #include <bits/c++config.h> | |
| #include <bits/exception_defines.h> | |
| #if (_GLIBCXX_HOSTED && __cpp_exceptions && __cplusplus > 202302L \ | |
| && __cpp_constexpr_exceptions >= 202411L) | |
| // This is a complicated case. Classes like std::logic_error | |
| // are defined in <stdexcept> but need std::string and <string> | |
| // needs __throw_logic_error and a few others. So, for C++26 | |
| // constant expression we need to forward declare the constexpr | |
| // __throw_logic_error etc. functions when included recursively | |
| // from <string> and then at the end of that header make sure | |
| // <stdexcept> is included and define those. | |
| // If <string> hasn't been included yet, include it at the end | |
| // of this header and that will arrange for all these to be | |
| // defined. | |
| #if defined(_GLIBCXX_STRING) || __glibcxx_exc_in_string == 2 | |
| #ifdef __glibcxx_exc_in_string | |
| #include <bits/stdexcept_throwfwd.h> | |
| #else | |
| #include <bits/stdexcept_throwdef.h> | |
| #endif | |
| #endif | |
| #if !defined(_GLIBCXX_STRING) && __glibcxx_exc_in_string != 2 | |
| #include <string> | |
| #endif | |
| #else | |
| #include <bits/stdexcept_throwfwd.h> | |
| #endif |