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Edit File: stdexcept
// Standard exception classes -*- C++ -*- // Copyright (C) 2001-2021 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 include/stdexcept * This is a Standard C++ Library header. */ // // ISO C++ 19.1 Exception classes // #ifndef _GLIBCXX_STDEXCEPT #define _GLIBCXX_STDEXCEPT 1 #pragma GCC system_header #include <exception> #include <string> namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION #if _GLIBCXX_USE_DUAL_ABI #if _GLIBCXX_USE_CXX11_ABI // Emulates an old COW string when the new std::string is in use. struct __cow_string { union { const char* _M_p; char _M_bytes[sizeof(const char*)]; }; __cow_string(); __cow_string(const std::string&); __cow_string(const char*, size_t); __cow_string(const __cow_string&) _GLIBCXX_NOTHROW; __cow_string& operator=(const __cow_string&) _GLIBCXX_NOTHROW; ~__cow_string(); #if __cplusplus >= 201103L __cow_string(__cow_string&&) noexcept; __cow_string& operator=(__cow_string&&) noexcept; #endif }; typedef basic_string<char> __sso_string; #else // _GLIBCXX_USE_CXX11_ABI typedef basic_string<char> __cow_string; // Emulates a new SSO string when the old std::string is in use. struct __sso_string { struct __str { const char* _M_p; size_t _M_string_length; char _M_local_buf[16]; }; union { __str _M_s; char _M_bytes[sizeof(__str)]; }; __sso_string() _GLIBCXX_NOTHROW; __sso_string(const std::string&); __sso_string(const char*, size_t); __sso_string(const __sso_string&); __sso_string& operator=(const __sso_string&); ~__sso_string(); #if __cplusplus >= 201103L __sso_string(__sso_string&&) noexcept; __sso_string& operator=(__sso_string&&) noexcept; #endif }; #endif // _GLIBCXX_USE_CXX11_ABI #else // _GLIBCXX_USE_DUAL_ABI typedef basic_string<char> __sso_string; typedef basic_string<char> __cow_string; #endif /** * @addtogroup exceptions * @{ */ /** Logic errors represent problems in the internal logic of a program; * in theory, these are preventable, and even detectable before the * program runs (e.g., violations of class invariants). * @brief One of two subclasses of exception. */ class logic_error : public exception { __cow_string _M_msg; public: /** Takes a character string describing the error. */ explicit logic_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit logic_error(const char*) _GLIBCXX_TXN_SAFE; logic_error(logic_error&&) noexcept; logic_error& operator=(logic_error&&) noexcept; #endif #if _GLIBCXX_USE_CXX11_ABI || _GLIBCXX_DEFINE_STDEXCEPT_COPY_OPS logic_error(const logic_error&) _GLIBCXX_NOTHROW; logic_error& operator=(const logic_error&) _GLIBCXX_NOTHROW; #elif __cplusplus >= 201103L logic_error(const logic_error&) = default; logic_error& operator=(const logic_error&) = default; #endif virtual ~logic_error() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW; /** Returns a C-style character string describing the general cause of * the current error (the same string passed to the ctor). */ virtual const char* what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW; # ifdef _GLIBCXX_TM_TS_INTERNAL friend void* ::_txnal_logic_error_get_msg(void* e); # endif }; /** Thrown by the library, or by you, to report domain errors (domain in * the mathematical sense). */ class domain_error : public logic_error { public: explicit domain_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit domain_error(const char*) _GLIBCXX_TXN_SAFE; domain_error(const domain_error&) = default; domain_error& operator=(const domain_error&) = default; domain_error(domain_error&&) = default; domain_error& operator=(domain_error&&) = default; #endif virtual ~domain_error() _GLIBCXX_NOTHROW; }; /** Thrown to report invalid arguments to functions. */ class invalid_argument : public logic_error { public: explicit invalid_argument(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit invalid_argument(const char*) _GLIBCXX_TXN_SAFE; invalid_argument(const invalid_argument&) = default; invalid_argument& operator=(const invalid_argument&) = default; invalid_argument(invalid_argument&&) = default; invalid_argument& operator=(invalid_argument&&) = default; #endif virtual ~invalid_argument() _GLIBCXX_NOTHROW; }; /** Thrown when an object is constructed that would exceed its maximum * permitted size (e.g., a basic_string instance). */ class length_error : public logic_error { public: explicit length_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit length_error(const char*) _GLIBCXX_TXN_SAFE; length_error(const length_error&) = default; length_error& operator=(const length_error&) = default; length_error(length_error&&) = default; length_error& operator=(length_error&&) = default; #endif virtual ~length_error() _GLIBCXX_NOTHROW; }; /** This represents an argument whose value is not within the expected * range (e.g., boundary checks in basic_string). */ class out_of_range : public logic_error { public: explicit out_of_range(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit out_of_range(const char*) _GLIBCXX_TXN_SAFE; out_of_range(const out_of_range&) = default; out_of_range& operator=(const out_of_range&) = default; out_of_range(out_of_range&&) = default; out_of_range& operator=(out_of_range&&) = default; #endif virtual ~out_of_range() _GLIBCXX_NOTHROW; }; /** Runtime errors represent problems outside the scope of a program; * they cannot be easily predicted and can generally only be caught as * the program executes. * @brief One of two subclasses of exception. */ class runtime_error : public exception { __cow_string _M_msg; public: /** Takes a character string describing the error. */ explicit runtime_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit runtime_error(const char*) _GLIBCXX_TXN_SAFE; runtime_error(runtime_error&&) noexcept; runtime_error& operator=(runtime_error&&) noexcept; #endif #if _GLIBCXX_USE_CXX11_ABI || _GLIBCXX_DEFINE_STDEXCEPT_COPY_OPS runtime_error(const runtime_error&) _GLIBCXX_NOTHROW; runtime_error& operator=(const runtime_error&) _GLIBCXX_NOTHROW; #elif __cplusplus >= 201103L runtime_error(const runtime_error&) = default; runtime_error& operator=(const runtime_error&) = default; #endif virtual ~runtime_error() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW; /** Returns a C-style character string describing the general cause of * the current error (the same string passed to the ctor). */ virtual const char* what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW; # ifdef _GLIBCXX_TM_TS_INTERNAL friend void* ::_txnal_runtime_error_get_msg(void* e); # endif }; /** Thrown to indicate range errors in internal computations. */ class range_error : public runtime_error { public: explicit range_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit range_error(const char*) _GLIBCXX_TXN_SAFE; range_error(const range_error&) = default; range_error& operator=(const range_error&) = default; range_error(range_error&&) = default; range_error& operator=(range_error&&) = default; #endif virtual ~range_error() _GLIBCXX_NOTHROW; }; /** Thrown to indicate arithmetic overflow. */ class overflow_error : public runtime_error { public: explicit overflow_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit overflow_error(const char*) _GLIBCXX_TXN_SAFE; overflow_error(const overflow_error&) = default; overflow_error& operator=(const overflow_error&) = default; overflow_error(overflow_error&&) = default; overflow_error& operator=(overflow_error&&) = default; #endif virtual ~overflow_error() _GLIBCXX_NOTHROW; }; /** Thrown to indicate arithmetic underflow. */ class underflow_error : public runtime_error { public: explicit underflow_error(const string& __arg) _GLIBCXX_TXN_SAFE; #if __cplusplus >= 201103L explicit underflow_error(const char*) _GLIBCXX_TXN_SAFE; underflow_error(const underflow_error&) = default; underflow_error& operator=(const underflow_error&) = default; underflow_error(underflow_error&&) = default; underflow_error& operator=(underflow_error&&) = default; #endif virtual ~underflow_error() _GLIBCXX_NOTHROW; }; /// @} group exceptions _GLIBCXX_END_NAMESPACE_VERSION } // namespace #endif /* _GLIBCXX_STDEXCEPT */