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
|
// File position object and stream types
// Copyright (C) 1997, 1998, 1999, 2000, 2001 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 2, 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.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// 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.
//
// ISO C++ 14882: 27 Input/output library
//
/** @file fpos.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _CPP_BITS_FPOS_H
#define _CPP_BITS_FPOS_H 1
#pragma GCC system_header
#include <bits/c++io.h>
#include <cwchar> // For mbstate_t.
namespace std
{
// 27.4.1 Types
// 27.4.3 Template class fpos
template<typename _StateT>
class fpos
{
public:
// Types:
typedef _StateT __state_type;
private:
streamoff _M_off;
__state_type _M_st;
public:
__state_type
state() const { return _M_st; }
void
state(__state_type __st) { _M_st = __st; }
// NB: The standard defines only the implicit copy ctor and the
// previous two members. The rest is a "conforming extension".
fpos(): _M_off(streamoff()), _M_st(__state_type()) { }
fpos(streamoff __off, __state_type __st = __state_type())
: _M_off(__off), _M_st(__st) { }
operator streamoff() const { return _M_off; }
fpos&
operator+=(streamoff __off) { _M_off += __off; return *this; }
fpos&
operator-=(streamoff __off) { _M_off -= __off; return *this; }
fpos
operator+(streamoff __off)
{
fpos __t(*this);
__t += __off;
return __t;
}
fpos
operator-(streamoff __off)
{
fpos __t(*this);
__t -= __off;
return __t;
}
bool
operator==(const fpos& __pos) const
{ return _M_off == __pos._M_off; }
bool
operator!=(const fpos& __pos) const
{ return _M_off != __pos._M_off; }
streamoff
_M_position() const { return _M_off; }
void
_M_position(streamoff __off) { _M_off = __off; }
};
// 27.2, paragraph 10 about fpos/char_traits circularity
typedef fpos<mbstate_t> streampos;
# ifdef _GLIBCPP_USE_WCHAR_T
typedef fpos<mbstate_t> wstreampos;
# endif
} // namespace std
#endif
|
