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| // Methods for Exception Support for -*- C++ -*- |
| |
| // Copyright (C) 2014-2015 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/>. |
| |
| // |
| // ISO C++ 14882: 19.1 Exception classes |
| // |
| |
| // All exception classes still use the classic COW std::string. |
| #define _GLIBCXX_USE_CXX11_ABI 0 |
| #define _GLIBCXX_DEFINE_STDEXCEPT_COPY_OPS 1 |
| #define __cow_string __cow_stringxxx |
| #include <stdexcept> |
| #include <system_error> |
| #undef __cow_string |
| |
| namespace std _GLIBCXX_VISIBILITY(default) |
| { |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| |
| // Copy constructors and assignment operators defined using COW std::string |
| |
| logic_error::logic_error(const logic_error& e) noexcept |
| : _M_msg(e._M_msg) { } |
| |
| logic_error& logic_error::operator=(const logic_error& e) noexcept |
| { _M_msg = e._M_msg; return *this; } |
| |
| runtime_error::runtime_error(const runtime_error& e) noexcept |
| : _M_msg(e._M_msg) { } |
| |
| runtime_error& |
| runtime_error::operator=(const runtime_error& e) noexcept |
| { _M_msg = e._M_msg; return *this; } |
| |
| // New C++11 constructors: |
| |
| logic_error::logic_error(const char* __arg) |
| : exception(), _M_msg(__arg) { } |
| |
| domain_error::domain_error(const char* __arg) |
| : logic_error(__arg) { } |
| |
| invalid_argument::invalid_argument(const char* __arg) |
| : logic_error(__arg) { } |
| |
| length_error::length_error(const char* __arg) |
| : logic_error(__arg) { } |
| |
| out_of_range::out_of_range(const char* __arg) |
| : logic_error(__arg) { } |
| |
| runtime_error::runtime_error(const char* __arg) |
| : exception(), _M_msg(__arg) { } |
| |
| range_error::range_error(const char* __arg) |
| : runtime_error(__arg) { } |
| |
| overflow_error::overflow_error(const char* __arg) |
| : runtime_error(__arg) { } |
| |
| underflow_error::underflow_error(const char* __arg) |
| : runtime_error(__arg) { } |
| |
| #if _GLIBCXX_USE_DUAL_ABI |
| // Converting constructor from COW std::string to SSO string. |
| __sso_string::__sso_string(const string& s) |
| : __sso_string(s.c_str(), s.length()) { } |
| |
| // Redefine __cow_string so that we can define and export its members |
| // in terms of the COW std::string. |
| struct __cow_string |
| { |
| union { |
| const char* _M_p; |
| char _M_bytes[sizeof(_M_p)]; |
| std::string _M_str; |
| }; |
| |
| __cow_string(); |
| __cow_string(const std::string& s); |
| __cow_string(const char*, size_t n); |
| __cow_string(const __cow_string&) noexcept; |
| __cow_string& operator=(const __cow_string&) noexcept; |
| ~__cow_string(); |
| __cow_string(__cow_string&&) noexcept; |
| __cow_string& operator=(__cow_string&&) noexcept; |
| }; |
| |
| __cow_string::__cow_string() : _M_str() { } |
| |
| __cow_string::__cow_string(const std::string& s) : _M_str(s) { } |
| |
| __cow_string::__cow_string(const char* s, size_t n) : _M_str(s, n) { } |
| |
| __cow_string::__cow_string(const __cow_string& s) noexcept |
| : _M_str(s._M_str) { } |
| |
| __cow_string& |
| __cow_string::operator=(const __cow_string& s) noexcept |
| { |
| _M_str = s._M_str; |
| return *this; |
| } |
| |
| __cow_string::~__cow_string() { _M_str.~basic_string(); } |
| |
| __cow_string::__cow_string(__cow_string&& s) noexcept |
| : _M_str(std::move(s._M_str)) { } |
| |
| __cow_string& |
| __cow_string::operator=(__cow_string&& s) noexcept |
| { |
| _M_str = std::move(s._M_str); |
| return *this; |
| } |
| |
| static_assert(sizeof(__cow_string) == sizeof(std::string), |
| "sizeof(std::string) has changed"); |
| static_assert(alignof(__cow_string) == alignof(std::string), |
| "alignof(std::string) has changed"); |
| #endif |
| |
| // Return error_category::message() as an SSO string |
| __sso_string |
| error_category::_M_message(int i) const |
| { |
| string msg = this->message(i); |
| return {msg.c_str(), msg.length()}; |
| } |
| |
| _GLIBCXX_END_NAMESPACE_VERSION |
| } // namespace |