1 // class template regex -*- C++ -*-
3 // Copyright (C) 2010-2021 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
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13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 // Under Section 7 of GPL version 3, you are granted additional
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18 // 3.1, as published by the Free Software Foundation.
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26 * @file bits/regex_error.h
27 * @brief Error and exception objects for the std regex library.
29 * This is an internal header file, included by other library headers.
30 * Do not attempt to use it directly. @headername{regex}
33 namespace std
_GLIBCXX_VISIBILITY(default)
35 _GLIBCXX_BEGIN_NAMESPACE_VERSION
42 namespace regex_constants
45 * @name 5.3 Error Types
66 /** The expression contained an invalid collating element name. */
67 constexpr error_type
error_collate(_S_error_collate
);
69 /** The expression contained an invalid character class name. */
70 constexpr error_type
error_ctype(_S_error_ctype
);
73 * The expression contained an invalid escaped character, or a trailing
76 constexpr error_type
error_escape(_S_error_escape
);
78 /** The expression contained an invalid back reference. */
79 constexpr error_type
error_backref(_S_error_backref
);
81 /** The expression contained mismatched [ and ]. */
82 constexpr error_type
error_brack(_S_error_brack
);
84 /** The expression contained mismatched ( and ). */
85 constexpr error_type
error_paren(_S_error_paren
);
87 /** The expression contained mismatched { and } */
88 constexpr error_type
error_brace(_S_error_brace
);
90 /** The expression contained an invalid range in a {} expression. */
91 constexpr error_type
error_badbrace(_S_error_badbrace
);
94 * The expression contained an invalid character range,
95 * such as [b-a] in most encodings.
97 constexpr error_type
error_range(_S_error_range
);
100 * There was insufficient memory to convert the expression into a
101 * finite state machine.
103 constexpr error_type
error_space(_S_error_space
);
106 * One of <em>*?+{</em> was not preceded by a valid regular expression.
108 constexpr error_type
error_badrepeat(_S_error_badrepeat
);
111 * The complexity of an attempted match against a regular expression
112 * exceeded a pre-set level.
114 constexpr error_type
error_complexity(_S_error_complexity
);
117 * There was insufficient memory to determine whether the
118 * regular expression could match the specified character sequence.
120 constexpr error_type
error_stack(_S_error_stack
);
123 } // namespace regex_constants
125 // [7.8] Class regex_error
127 * @brief A regular expression exception class.
128 * @ingroup exceptions
130 * The regular expression library throws objects of this class on error.
132 class regex_error
: public std::runtime_error
134 regex_constants::error_type _M_code
;
138 * @brief Constructs a regex_error object.
140 * @param __ecode the regex error code.
143 regex_error(regex_constants::error_type __ecode
);
145 virtual ~regex_error() throw();
148 * @brief Gets the regex error code.
150 * @returns the regex error code.
152 regex_constants::error_type
157 regex_error(regex_constants::error_type __ecode
, const char* __what
)
158 : std::runtime_error(__what
), _M_code(__ecode
)
161 friend void __throw_regex_error(regex_constants::error_type
, const char*);
167 __throw_regex_error(regex_constants::error_type __ecode
);
170 __throw_regex_error(regex_constants::error_type __ecode
171 __attribute__((__unused__
)),
172 const char* __what
__attribute__((__unused__
)))
173 { _GLIBCXX_THROW_OR_ABORT(regex_error(__ecode
, __what
)); }
175 _GLIBCXX_END_NAMESPACE_VERSION