1 // Helpers for ostream inserters -*- C++ -*-
3 // Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
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
8 // Free Software Foundation; either version 3, or (at your option)
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.
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.
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/>.
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.
30 #ifndef _OSTREAM_INSERT_H
31 #define _OSTREAM_INSERT_H 1
33 #pragma GCC system_header
36 #include <cxxabi-forced.h>
38 _GLIBCXX_BEGIN_NAMESPACE(std
)
40 template<typename _CharT
, typename _Traits
>
42 __ostream_write(basic_ostream
<_CharT
, _Traits
>& __out
,
43 const _CharT
* __s
, streamsize __n
)
45 typedef basic_ostream
<_CharT
, _Traits
> __ostream_type
;
46 typedef typename
__ostream_type::ios_base __ios_base
;
48 const streamsize __put
= __out
.rdbuf()->sputn(__s
, __n
);
50 __out
.setstate(__ios_base::badbit
);
53 template<typename _CharT
, typename _Traits
>
55 __ostream_fill(basic_ostream
<_CharT
, _Traits
>& __out
, streamsize __n
)
57 typedef basic_ostream
<_CharT
, _Traits
> __ostream_type
;
58 typedef typename
__ostream_type::ios_base __ios_base
;
60 const _CharT __c
= __out
.fill();
61 for (; __n
> 0; --__n
)
63 const typename
_Traits::int_type __put
= __out
.rdbuf()->sputc(__c
);
64 if (_Traits::eq_int_type(__put
, _Traits::eof()))
66 __out
.setstate(__ios_base::badbit
);
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
)
77 typedef basic_ostream
<_CharT
, _Traits
> __ostream_type
;
78 typedef typename
__ostream_type::ios_base __ios_base
;
80 typename
__ostream_type::sentry
__cerb(__out
);
85 const streamsize __w
= __out
.width();
88 const bool __left
= ((__out
.flags()
89 & __ios_base::adjustfield
)
92 __ostream_fill(__out
, __w
- __n
);
94 __ostream_write(__out
, __s
, __n
);
95 if (__left
&& __out
.good())
96 __ostream_fill(__out
, __w
- __n
);
99 __ostream_write(__out
, __s
, __n
);
102 __catch(__cxxabiv1::__forced_unwind
&)
104 __out
._M_setstate(__ios_base::badbit
);
105 __throw_exception_again
;
108 { __out
._M_setstate(__ios_base::badbit
); }
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
);
119 #ifdef _GLIBCXX_USE_WCHAR_T
120 extern template wostream
& __ostream_insert(wostream
&, const wchar_t*,
125 _GLIBCXX_END_NAMESPACE
127 #endif /* _OSTREAM_INSERT_H */