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1 | // Stream buffer classes -*- C++ -*- |
2 | ||
748086b7 | 3 | // Copyright (C) 2004, 2005, 2006, 2009 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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9 | // any later version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
2bf8accc | 19 | |
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20 | // You should have received a copy of the GNU General Public License and |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
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24 | |
25 | // | |
26 | // ISO C++ 14882: 27.5 Stream buffers | |
27 | // | |
28 | ||
29 | #include <streambuf> | |
30 | ||
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31 | namespace std _GLIBCXX_VISIBILITY(default) |
32 | { | |
33 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
3cbc7af0 | 34 | |
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35 | template<> |
36 | streamsize | |
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37 | __copy_streambufs_eof(basic_streambuf<char>* __sbin, |
38 | basic_streambuf<char>* __sbout, bool& __ineof) | |
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39 | { |
40 | typedef basic_streambuf<char>::traits_type traits_type; | |
41 | streamsize __ret = 0; | |
6f4d3d86 | 42 | __ineof = true; |
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43 | traits_type::int_type __c = __sbin->sgetc(); |
44 | while (!traits_type::eq_int_type(__c, traits_type::eof())) | |
45 | { | |
cdcdee12 | 46 | const streamsize __n = __sbin->egptr() - __sbin->gptr(); |
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47 | if (__n > 1) |
48 | { | |
cdcdee12 | 49 | const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n); |
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50 | __sbin->gbump(__wrote); |
51 | __ret += __wrote; | |
52 | if (__wrote < __n) | |
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53 | { |
54 | __ineof = false; | |
55 | break; | |
56 | } | |
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57 | __c = __sbin->underflow(); |
58 | } | |
59 | else | |
60 | { | |
61 | __c = __sbout->sputc(traits_type::to_char_type(__c)); | |
62 | if (traits_type::eq_int_type(__c, traits_type::eof())) | |
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63 | { |
64 | __ineof = false; | |
65 | break; | |
66 | } | |
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67 | ++__ret; |
68 | __c = __sbin->snextc(); | |
69 | } | |
70 | } | |
71 | return __ret; | |
72 | } | |
73 | ||
74 | #ifdef _GLIBCXX_USE_WCHAR_T | |
75 | template<> | |
76 | streamsize | |
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77 | __copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin, |
78 | basic_streambuf<wchar_t>* __sbout, bool& __ineof) | |
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79 | { |
80 | typedef basic_streambuf<wchar_t>::traits_type traits_type; | |
81 | streamsize __ret = 0; | |
6f4d3d86 | 82 | __ineof = true; |
2bf8accc PC |
83 | traits_type::int_type __c = __sbin->sgetc(); |
84 | while (!traits_type::eq_int_type(__c, traits_type::eof())) | |
85 | { | |
cdcdee12 | 86 | const streamsize __n = __sbin->egptr() - __sbin->gptr(); |
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87 | if (__n > 1) |
88 | { | |
cdcdee12 | 89 | const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n); |
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90 | __sbin->gbump(__wrote); |
91 | __ret += __wrote; | |
92 | if (__wrote < __n) | |
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93 | { |
94 | __ineof = false; | |
95 | break; | |
96 | } | |
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97 | __c = __sbin->underflow(); |
98 | } | |
99 | else | |
100 | { | |
101 | __c = __sbout->sputc(traits_type::to_char_type(__c)); | |
102 | if (traits_type::eq_int_type(__c, traits_type::eof())) | |
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103 | { |
104 | __ineof = false; | |
105 | break; | |
106 | } | |
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107 | ++__ret; |
108 | __c = __sbin->snextc(); | |
109 | } | |
110 | } | |
111 | return __ret; | |
112 | } | |
113 | #endif | |
3cbc7af0 | 114 | |
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115 | _GLIBCXX_END_NAMESPACE_VERSION |
116 | } // namespace |