1*404b540aSrobert // Stream buffer classes -*- C++ -*-
2*404b540aSrobert
3*404b540aSrobert // Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
4*404b540aSrobert //
5*404b540aSrobert // This file is part of the GNU ISO C++ Library. This library is free
6*404b540aSrobert // software; you can redistribute it and/or modify it under the
7*404b540aSrobert // terms of the GNU General Public License as published by the
8*404b540aSrobert // Free Software Foundation; either version 2, or (at your option)
9*404b540aSrobert // any later version.
10*404b540aSrobert
11*404b540aSrobert // This library is distributed in the hope that it will be useful,
12*404b540aSrobert // but WITHOUT ANY WARRANTY; without even the implied warranty of
13*404b540aSrobert // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14*404b540aSrobert // GNU General Public License for more details.
15*404b540aSrobert
16*404b540aSrobert // You should have received a copy of the GNU General Public License along
17*404b540aSrobert // with this library; see the file COPYING. If not, write to the Free
18*404b540aSrobert // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19*404b540aSrobert // USA.
20*404b540aSrobert
21*404b540aSrobert // As a special exception, you may use this file as part of a free software
22*404b540aSrobert // library without restriction. Specifically, if other files instantiate
23*404b540aSrobert // templates or use macros or inline functions from this file, or you compile
24*404b540aSrobert // this file and link it with other files to produce an executable, this
25*404b540aSrobert // file does not by itself cause the resulting executable to be covered by
26*404b540aSrobert // the GNU General Public License. This exception does not however
27*404b540aSrobert // invalidate any other reasons why the executable file might be covered by
28*404b540aSrobert // the GNU General Public License.
29*404b540aSrobert
30*404b540aSrobert //
31*404b540aSrobert // ISO C++ 14882: 27.5 Stream buffers
32*404b540aSrobert //
33*404b540aSrobert
34*404b540aSrobert #include <streambuf>
35*404b540aSrobert
_GLIBCXX_BEGIN_NAMESPACE(std)36*404b540aSrobert _GLIBCXX_BEGIN_NAMESPACE(std)
37*404b540aSrobert
38*404b540aSrobert template<>
39*404b540aSrobert streamsize
40*404b540aSrobert __copy_streambufs_eof(basic_streambuf<char>* __sbin,
41*404b540aSrobert basic_streambuf<char>* __sbout, bool& __ineof)
42*404b540aSrobert {
43*404b540aSrobert typedef basic_streambuf<char>::traits_type traits_type;
44*404b540aSrobert streamsize __ret = 0;
45*404b540aSrobert __ineof = true;
46*404b540aSrobert traits_type::int_type __c = __sbin->sgetc();
47*404b540aSrobert while (!traits_type::eq_int_type(__c, traits_type::eof()))
48*404b540aSrobert {
49*404b540aSrobert const streamsize __n = __sbin->egptr() - __sbin->gptr();
50*404b540aSrobert if (__n > 1)
51*404b540aSrobert {
52*404b540aSrobert const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n);
53*404b540aSrobert __sbin->gbump(__wrote);
54*404b540aSrobert __ret += __wrote;
55*404b540aSrobert if (__wrote < __n)
56*404b540aSrobert {
57*404b540aSrobert __ineof = false;
58*404b540aSrobert break;
59*404b540aSrobert }
60*404b540aSrobert __c = __sbin->underflow();
61*404b540aSrobert }
62*404b540aSrobert else
63*404b540aSrobert {
64*404b540aSrobert __c = __sbout->sputc(traits_type::to_char_type(__c));
65*404b540aSrobert if (traits_type::eq_int_type(__c, traits_type::eof()))
66*404b540aSrobert {
67*404b540aSrobert __ineof = false;
68*404b540aSrobert break;
69*404b540aSrobert }
70*404b540aSrobert ++__ret;
71*404b540aSrobert __c = __sbin->snextc();
72*404b540aSrobert }
73*404b540aSrobert }
74*404b540aSrobert return __ret;
75*404b540aSrobert }
76*404b540aSrobert
77*404b540aSrobert #ifdef _GLIBCXX_USE_WCHAR_T
78*404b540aSrobert template<>
79*404b540aSrobert streamsize
__copy_streambufs_eof(basic_streambuf<wchar_t> * __sbin,basic_streambuf<wchar_t> * __sbout,bool & __ineof)80*404b540aSrobert __copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin,
81*404b540aSrobert basic_streambuf<wchar_t>* __sbout, bool& __ineof)
82*404b540aSrobert {
83*404b540aSrobert typedef basic_streambuf<wchar_t>::traits_type traits_type;
84*404b540aSrobert streamsize __ret = 0;
85*404b540aSrobert __ineof = true;
86*404b540aSrobert traits_type::int_type __c = __sbin->sgetc();
87*404b540aSrobert while (!traits_type::eq_int_type(__c, traits_type::eof()))
88*404b540aSrobert {
89*404b540aSrobert const streamsize __n = __sbin->egptr() - __sbin->gptr();
90*404b540aSrobert if (__n > 1)
91*404b540aSrobert {
92*404b540aSrobert const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n);
93*404b540aSrobert __sbin->gbump(__wrote);
94*404b540aSrobert __ret += __wrote;
95*404b540aSrobert if (__wrote < __n)
96*404b540aSrobert {
97*404b540aSrobert __ineof = false;
98*404b540aSrobert break;
99*404b540aSrobert }
100*404b540aSrobert __c = __sbin->underflow();
101*404b540aSrobert }
102*404b540aSrobert else
103*404b540aSrobert {
104*404b540aSrobert __c = __sbout->sputc(traits_type::to_char_type(__c));
105*404b540aSrobert if (traits_type::eq_int_type(__c, traits_type::eof()))
106*404b540aSrobert {
107*404b540aSrobert __ineof = false;
108*404b540aSrobert break;
109*404b540aSrobert }
110*404b540aSrobert ++__ret;
111*404b540aSrobert __c = __sbin->snextc();
112*404b540aSrobert }
113*404b540aSrobert }
114*404b540aSrobert return __ret;
115*404b540aSrobert }
116*404b540aSrobert #endif
117*404b540aSrobert
118*404b540aSrobert _GLIBCXX_END_NAMESPACE
119