Edit: regex_error.h
// class template regex -*- C++ -*- // Copyright (C) 2010-2018 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/regex_error.h * @brief Error and exception objects for the std regex library. * * This is an internal header file, included by other library headers. * Do not attempt to use it directly. @headername{regex} */ namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION /** * @addtogroup regex * @{ */ namespace regex_constants { /** * @name 5.3 Error Types */ //@{ enum error_type { _S_error_collate, _S_error_ctype, _S_error_escape, _S_error_backref, _S_error_brack, _S_error_paren, _S_error_brace, _S_error_badbrace, _S_error_range, _S_error_space, _S_error_badrepeat, _S_error_complexity, _S_error_stack, }; /** The expression contained an invalid collating element name. */ constexpr error_type error_collate(_S_error_collate); /** The expression contained an invalid character class name. */ constexpr error_type error_ctype(_S_error_ctype); /** * The expression contained an invalid escaped character, or a trailing * escape. */ constexpr error_type error_escape(_S_error_escape); /** The expression contained an invalid back reference. */ constexpr error_type error_backref(_S_error_backref); /** The expression contained mismatched [ and ]. */ constexpr error_type error_brack(_S_error_brack); /** The expression contained mismatched ( and ). */ constexpr error_type error_paren(_S_error_paren); /** The expression contained mismatched { and } */ constexpr error_type error_brace(_S_error_brace); /** The expression contained an invalid range in a {} expression. */ constexpr error_type error_badbrace(_S_error_badbrace); /** * The expression contained an invalid character range, * such as [b-a] in most encodings. */ constexpr error_type error_range(_S_error_range); /** * There was insufficient memory to convert the expression into a * finite state machine. */ constexpr error_type error_space(_S_error_space); /** * One of <em>*?+{</em> was not preceded by a valid regular expression. */ constexpr error_type error_badrepeat(_S_error_badrepeat); /** * The complexity of an attempted match against a regular expression * exceeded a pre-set level. */ constexpr error_type error_complexity(_S_error_complexity); /** * There was insufficient memory to determine whether the * regular expression could match the specified character sequence. */ constexpr error_type error_stack(_S_error_stack); //@} } // namespace regex_constants // [7.8] Class regex_error /** * @brief A regular expression exception class. * @ingroup exceptions * * The regular expression library throws objects of this class on error. */ class regex_error : public std::runtime_error { regex_constants::error_type _M_code; public: /** * @brief Constructs a regex_error object. * * @param __ecode the regex error code. */ explicit regex_error(regex_constants::error_type __ecode); virtual ~regex_error() throw(); /** * @brief Gets the regex error code. * * @returns the regex error code. */ regex_constants::error_type code() const { return _M_code; } private: regex_error(regex_constants::error_type __ecode, const char* __what) : std::runtime_error(__what), _M_code(__ecode) { } friend void __throw_regex_error(regex_constants::error_type, const char*); }; //@} // group regex void __throw_regex_error(regex_constants::error_type __ecode); inline void __throw_regex_error(regex_constants::error_type __ecode, const char* __what) { _GLIBCXX_THROW_OR_ABORT(regex_error(__ecode, __what)); } _GLIBCXX_END_NAMESPACE_VERSION } // namespace std
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