libstdc++: functexcept.h Source File

libstdc++

functexcept.h
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1// Function-Based Exception Support -*- C++ -*-
2
3// Copyright (C) 2001-2026 Free Software Foundation, Inc.
4//
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
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file bits/functexcept.h
26 * This is an internal header file, included by other library headers.
27 * Do not attempt to use it directly. @headername{exception}
28 *
29 * This header provides support for -fno-exceptions.
30 */
31
32//
33// ISO C++ 14882: 19.1 Exception classes
34//
35
36#ifndef _FUNCTEXCEPT_H
37#define _FUNCTEXCEPT_H 1
38
39#include <bits/c++config.h>
40#include <bits/exception_defines.h>
41
42#if _GLIBCXX_HOSTED
43namespace std _GLIBCXX_VISIBILITY(default)
44{
45_GLIBCXX_BEGIN_NAMESPACE_VERSION
46 // Helper for exception objects in <except>
47 void
48 __throw_bad_exception(void) __attribute__((__noreturn__));
49
50 // Helper for exception objects in <typeinfo>
51 void
52 __throw_bad_cast(void) __attribute__((__noreturn__,__cold__));
53
54 void
55 __throw_bad_typeid(void) __attribute__((__noreturn__,__cold__));
56
57 // Helpers for exception objects in <stdexcept>
58 void
59 __throw_range_error(const char*) __attribute__((__noreturn__,__cold__));
60
61 // Helpers for exception objects in <ios>
62 void
63 __throw_ios_failure(const char*) __attribute__((__noreturn__,__cold__));
64
65 void
66 __throw_ios_failure(const char*, int) __attribute__((__noreturn__,__cold__));
67
68 // Helpers for exception objects in <system_error>
69 void
70 __throw_system_error(int) __attribute__((__noreturn__,__cold__));
71
72 // Helpers for exception objects in <future>
73 void
74 __throw_future_error(int) __attribute__((__noreturn__,__cold__));
75
76 // Helpers for exception objects in <functional>
77 void
78 __throw_bad_function_call() __attribute__((__noreturn__,__cold__));
79
80_GLIBCXX_END_NAMESPACE_VERSION
81} // namespace
82#endif // HOSTED
83
84#endif
exception_defines.h
c++config.h
std
ISO C++ entities toplevel namespace is std.