1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
// Exception Handling support header (exception_ptr class) for -*- C++ -*-
// Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
// 2004, 2005, 2006, 2007, 2008
// Free Software Foundation
//
// This file is part of GCC.
//
// GCC 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 2, or (at your option)
// any later version.
//
// GCC 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.
//
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING. If not, write to
// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/** @file exception_ptr.h
* This is an internal header file, included by other headers and the
* implementation. You should not attempt to use it directly.
*/
#ifndef __EXCEPTION_PTR_H__
#define __EXCEPTION_PTR_H__
#pragma GCC visibility push(default)
#include <bits/c++config.h>
extern "C++" {
namespace std
{
// Hide the free operators from other types
namespace __exception_ptr
{
/**
* @brief An opaque pointer to an arbitrary exception.
*/
class exception_ptr;
}
using __exception_ptr::exception_ptr;
/** Obtain an %exception_ptr to the currently handled exception. If there
* is none, or the currently handled exception is foreign, return the null
* value.
*/
exception_ptr current_exception() throw();
/// Throw the object pointed to by the %exception_ptr.
void rethrow_exception(exception_ptr) __attribute__ ((__noreturn__));
/// Obtain an %exception_ptr pointing to a copy of the supplied object.
template <class _Ex>
exception_ptr copy_exception(_Ex __ex) throw();
namespace __exception_ptr
{
bool operator==(const exception_ptr&,
const exception_ptr&) throw();
bool operator!=(const exception_ptr&,
const exception_ptr&) throw();
class exception_ptr
{
void* _M_exception_object;
explicit exception_ptr(void* __e) throw();
void _M_addref() throw();
void _M_release() throw();
void *_M_get() const throw();
void _M_safe_bool_dummy();
friend exception_ptr std::current_exception() throw();
friend void std::rethrow_exception(exception_ptr);
public:
exception_ptr() throw();
typedef void (exception_ptr::*__safe_bool)();
// For construction from nullptr or 0.
exception_ptr(__safe_bool) throw();
exception_ptr(const exception_ptr&) throw();
#ifdef __GXX_EXPERIMENTAL_CXX0X__
exception_ptr(exception_ptr&& __o) throw()
: _M_exception_object(__o._M_exception_object)
{
__o._M_exception_object = 0;
}
#endif
exception_ptr& operator=(const exception_ptr&) throw();
#ifdef __GXX_EXPERIMENTAL_CXX0X__
exception_ptr& operator=(exception_ptr&& __o) throw()
{
exception_ptr(__o).swap(*this);
return *this;
}
#endif
~exception_ptr() throw();
void swap(exception_ptr&) throw();
#ifdef __GXX_EXPERIMENTAL_CXX0X__
void swap(exception_ptr &&__o) throw()
{
void *__tmp = _M_exception_object;
_M_exception_object = __o._M_exception_object;
__o._M_exception_object = __tmp;
}
#endif
bool operator!() const throw();
operator __safe_bool() const throw();
friend bool operator==(const exception_ptr&,
const exception_ptr&) throw();
const type_info *__cxa_exception_type() const throw();
};
} // namespace __exception_ptr
template <class _Ex>
exception_ptr copy_exception(_Ex __ex) throw()
{
try
{
throw __ex;
}
catch(...)
{
return current_exception ();
}
}
} // namespace std
} // extern "C++"
#pragma GCC visibility pop
#endif
|
