File Coverage

/usr/include/c++/5/exception
Criterion Covered Total %
statement 0 1 0.0
branch n/a
condition n/a
subroutine n/a
pod n/a
total 0 1 0.0


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1             // Exception Handling support header for -*- C++ -*-
2              
3             // Copyright (C) 1995-2015 Free Software Foundation, Inc.
4             //
5             // This file is part of GCC.
6             //
7             // GCC is free software; you can redistribute it and/or modify
8             // it under the terms of the GNU General Public License as published by
9             // the Free Software Foundation; either version 3, or (at your option)
10             // any later version.
11             //
12             // GCC is distributed in the hope that it will be useful,
13             // but WITHOUT ANY WARRANTY; without even the implied warranty of
14             // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15             // GNU General Public License for more details.
16             //
17             // Under Section 7 of GPL version 3, you are granted additional
18             // permissions described in the GCC Runtime Library Exception, version
19             // 3.1, as published by the Free Software Foundation.
20              
21             // You should have received a copy of the GNU General Public License and
22             // a copy of the GCC Runtime Library Exception along with this program;
23             // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24             // <http://www.gnu.org/licenses/>.
25              
26             /** @file exception
27             * This is a Standard C++ Library header.
28             */
29              
30             #ifndef __EXCEPTION__
31             #define __EXCEPTION__
32              
33             #pragma GCC system_header
34              
35             #pragma GCC visibility push(default)
36              
37             #include <bits/c++config.h>
38             #include <bits/atomic_lockfree_defines.h>
39              
40             extern "C++" {
41              
42             namespace std
43             {
44             /**
45             * @defgroup exceptions Exceptions
46             * @ingroup diagnostics
47             *
48             * Classes and functions for reporting errors via exception classes.
49             * @{
50             */
51              
52             /**
53             * @brief Base class for all library exceptions.
54             *
55             * This is the base class for all exceptions thrown by the standard
56             * library, and by certain language expressions. You are free to derive
57             * your own %exception classes, or use a different hierarchy, or to
58             * throw non-class data (e.g., fundamental types).
59             */
60             class exception
61             {
62             public:
63 0           exception() _GLIBCXX_USE_NOEXCEPT { }
64             virtual ~exception() _GLIBCXX_USE_NOEXCEPT;
65              
66             /** Returns a C-style character string describing the general cause
67             * of the current error. */
68             virtual const char* what() const _GLIBCXX_USE_NOEXCEPT;
69             };
70              
71             /** If an %exception is thrown which is not listed in a function's
72             * %exception specification, one of these may be thrown. */
73             class bad_exception : public exception
74             {
75             public:
76             bad_exception() _GLIBCXX_USE_NOEXCEPT { }
77              
78             // This declaration is not useless:
79             // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
80             virtual ~bad_exception() _GLIBCXX_USE_NOEXCEPT;
81              
82             // See comment in eh_exception.cc.
83             virtual const char* what() const _GLIBCXX_USE_NOEXCEPT;
84             };
85              
86             /// If you write a replacement %terminate handler, it must be of this type.
87             typedef void (*terminate_handler) ();
88              
89             /// If you write a replacement %unexpected handler, it must be of this type.
90             typedef void (*unexpected_handler) ();
91              
92             /// Takes a new handler function as an argument, returns the old function.
93             terminate_handler set_terminate(terminate_handler) _GLIBCXX_USE_NOEXCEPT;
94              
95             #if __cplusplus >= 201103L
96             /// Return the current terminate handler.
97             terminate_handler get_terminate() noexcept;
98             #endif
99              
100             /** The runtime will call this function if %exception handling must be
101             * abandoned for any reason. It can also be called by the user. */
102             void terminate() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__noreturn__));
103              
104             /// Takes a new handler function as an argument, returns the old function.
105             unexpected_handler set_unexpected(unexpected_handler) _GLIBCXX_USE_NOEXCEPT;
106              
107             #if __cplusplus >= 201103L
108             /// Return the current unexpected handler.
109             unexpected_handler get_unexpected() noexcept;
110             #endif
111              
112             /** The runtime will call this function if an %exception is thrown which
113             * violates the function's %exception specification. */
114             void unexpected() __attribute__ ((__noreturn__));
115              
116             /** [18.6.4]/1: 'Returns true after completing evaluation of a
117             * throw-expression until either completing initialization of the
118             * exception-declaration in the matching handler or entering @c unexpected()
119             * due to the throw; or after entering @c terminate() for any reason
120             * other than an explicit call to @c terminate(). [Note: This includes
121             * stack unwinding [15.2]. end note]'
122             *
123             * 2: 'When @c uncaught_exception() is true, throwing an
124             * %exception can result in a call of @c terminate()
125             * (15.5.1).'
126             */
127             bool uncaught_exception() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
128              
129             // @} group exceptions
130             } // namespace std
131              
132             namespace __gnu_cxx
133             {
134             _GLIBCXX_BEGIN_NAMESPACE_VERSION
135              
136             /**
137             * @brief A replacement for the standard terminate_handler which
138             * prints more information about the terminating exception (if any)
139             * on stderr.
140             *
141             * @ingroup exceptions
142             *
143             * Call
144             * @code
145             * std::set_terminate(__gnu_cxx::__verbose_terminate_handler)
146             * @endcode
147             * to use. For more info, see
148             * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt02ch06s02.html
149             *
150             * In 3.4 and later, this is on by default.
151             */
152             void __verbose_terminate_handler();
153              
154             _GLIBCXX_END_NAMESPACE_VERSION
155             } // namespace
156              
157             } // extern "C++"
158              
159             #pragma GCC visibility pop
160              
161             #if (__cplusplus >= 201103L) && (ATOMIC_INT_LOCK_FREE > 1)
162             #include <bits/exception_ptr.h>
163             #include <bits/nested_exception.h>
164             #endif
165              
166             #endif