]>
Commit | Line | Data |
---|---|---|
11202768 PC |
1 | // Helpers for ostream inserters -*- C++ -*- |
2 | ||
bc2631e0 | 3 | // Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. |
11202768 PC |
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) |
11202768 PC |
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. | |
19 | ||
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/>. | |
11202768 PC |
24 | |
25 | /** @file ostream_insert.h | |
26 | * This is an internal header file, included by other library headers. | |
27 | * You should not attempt to use it directly. | |
28 | */ | |
29 | ||
30 | #ifndef _OSTREAM_INSERT_H | |
31 | #define _OSTREAM_INSERT_H 1 | |
32 | ||
33 | #pragma GCC system_header | |
34 | ||
35 | #include <iosfwd> | |
fba10f59 | 36 | #include <cxxabi-forced.h> |
11202768 PC |
37 | |
38 | _GLIBCXX_BEGIN_NAMESPACE(std) | |
39 | ||
40 | template<typename _CharT, typename _Traits> | |
41 | inline void | |
42 | __ostream_write(basic_ostream<_CharT, _Traits>& __out, | |
43 | const _CharT* __s, streamsize __n) | |
44 | { | |
45 | typedef basic_ostream<_CharT, _Traits> __ostream_type; | |
46 | typedef typename __ostream_type::ios_base __ios_base; | |
47 | ||
48 | const streamsize __put = __out.rdbuf()->sputn(__s, __n); | |
49 | if (__put != __n) | |
50 | __out.setstate(__ios_base::badbit); | |
51 | } | |
52 | ||
53 | template<typename _CharT, typename _Traits> | |
54 | inline void | |
55 | __ostream_fill(basic_ostream<_CharT, _Traits>& __out, streamsize __n) | |
56 | { | |
57 | typedef basic_ostream<_CharT, _Traits> __ostream_type; | |
58 | typedef typename __ostream_type::ios_base __ios_base; | |
59 | ||
60 | const _CharT __c = __out.fill(); | |
61 | for (; __n > 0; --__n) | |
62 | { | |
63 | const typename _Traits::int_type __put = __out.rdbuf()->sputc(__c); | |
64 | if (_Traits::eq_int_type(__put, _Traits::eof())) | |
65 | { | |
66 | __out.setstate(__ios_base::badbit); | |
67 | break; | |
68 | } | |
69 | } | |
70 | } | |
71 | ||
72 | template<typename _CharT, typename _Traits> | |
73 | basic_ostream<_CharT, _Traits>& | |
74 | __ostream_insert(basic_ostream<_CharT, _Traits>& __out, | |
75 | const _CharT* __s, streamsize __n) | |
76 | { | |
77 | typedef basic_ostream<_CharT, _Traits> __ostream_type; | |
78 | typedef typename __ostream_type::ios_base __ios_base; | |
79 | ||
80 | typename __ostream_type::sentry __cerb(__out); | |
880b527f | 81 | if (__cerb) |
11202768 | 82 | { |
bc2631e0 | 83 | __try |
11202768 PC |
84 | { |
85 | const streamsize __w = __out.width(); | |
86 | if (__w > __n) | |
87 | { | |
88 | const bool __left = ((__out.flags() | |
89 | & __ios_base::adjustfield) | |
90 | == __ios_base::left); | |
91 | if (!__left) | |
92 | __ostream_fill(__out, __w - __n); | |
93 | if (__out.good()) | |
94 | __ostream_write(__out, __s, __n); | |
95 | if (__left && __out.good()) | |
96 | __ostream_fill(__out, __w - __n); | |
97 | } | |
98 | else | |
99 | __ostream_write(__out, __s, __n); | |
100 | __out.width(0); | |
101 | } | |
bc2631e0 | 102 | __catch(__cxxabiv1::__forced_unwind&) |
d05f74f1 JM |
103 | { |
104 | __out._M_setstate(__ios_base::badbit); | |
105 | __throw_exception_again; | |
106 | } | |
bc2631e0 | 107 | __catch(...) |
11202768 PC |
108 | { __out._M_setstate(__ios_base::badbit); } |
109 | } | |
110 | return __out; | |
111 | } | |
112 | ||
84b31797 PC |
113 | // Inhibit implicit instantiations for required instantiations, |
114 | // which are defined via explicit instantiations elsewhere. | |
115 | // NB: This syntax is a GNU extension. | |
116 | #if _GLIBCXX_EXTERN_TEMPLATE | |
117 | extern template ostream& __ostream_insert(ostream&, const char*, streamsize); | |
118 | ||
119 | #ifdef _GLIBCXX_USE_WCHAR_T | |
120 | extern template wostream& __ostream_insert(wostream&, const wchar_t*, | |
121 | streamsize); | |
122 | #endif | |
123 | #endif | |
124 | ||
11202768 PC |
125 | _GLIBCXX_END_NAMESPACE |
126 | ||
127 | #endif /* _OSTREAM_INSERT_H */ |