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
|
// Stream buffer classes -*- C++ -*-
// Copyright (C) 2004, 2005, 2006, 2009 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 3, 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.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
//
// ISO C++ 14882: 27.5 Stream buffers
//
#include <streambuf>
_GLIBCXX_BEGIN_NAMESPACE(std)
template<>
streamsize
__copy_streambufs_eof(basic_streambuf<char>* __sbin,
basic_streambuf<char>* __sbout, bool& __ineof)
{
typedef basic_streambuf<char>::traits_type traits_type;
streamsize __ret = 0;
__ineof = true;
traits_type::int_type __c = __sbin->sgetc();
while (!traits_type::eq_int_type(__c, traits_type::eof()))
{
const streamsize __n = __sbin->egptr() - __sbin->gptr();
if (__n > 1)
{
const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n);
__sbin->gbump(__wrote);
__ret += __wrote;
if (__wrote < __n)
{
__ineof = false;
break;
}
__c = __sbin->underflow();
}
else
{
__c = __sbout->sputc(traits_type::to_char_type(__c));
if (traits_type::eq_int_type(__c, traits_type::eof()))
{
__ineof = false;
break;
}
++__ret;
__c = __sbin->snextc();
}
}
return __ret;
}
#ifdef _GLIBCXX_USE_WCHAR_T
template<>
streamsize
__copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin,
basic_streambuf<wchar_t>* __sbout, bool& __ineof)
{
typedef basic_streambuf<wchar_t>::traits_type traits_type;
streamsize __ret = 0;
__ineof = true;
traits_type::int_type __c = __sbin->sgetc();
while (!traits_type::eq_int_type(__c, traits_type::eof()))
{
const streamsize __n = __sbin->egptr() - __sbin->gptr();
if (__n > 1)
{
const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n);
__sbin->gbump(__wrote);
__ret += __wrote;
if (__wrote < __n)
{
__ineof = false;
break;
}
__c = __sbin->underflow();
}
else
{
__c = __sbout->sputc(traits_type::to_char_type(__c));
if (traits_type::eq_int_type(__c, traits_type::eof()))
{
__ineof = false;
break;
}
++__ret;
__c = __sbin->snextc();
}
}
return __ret;
}
#endif
_GLIBCXX_END_NAMESPACE
|
