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1 // std::codecvt implementation details, GNU version -*- C++ -*-
3 // Copyright (C) 2002 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 2, 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 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
31 // ISO C++ 14882: 22.2.1.5 - Template class codecvt
34 // Written by Benjamin Kosnik <bkoz@redhat.com>
37 #include "c++locale_internal.h"
42 #ifdef _GLIBCPP_USE_WCHAR_T
44 codecvt
<wchar_t, char, mbstate_t>::
45 do_out(state_type
& __state
, const intern_type
* __from
,
46 const intern_type
* __from_end
, const intern_type
*& __from_next
,
47 extern_type
* __to
, extern_type
* __to_end
,
48 extern_type
*& __to_next
) const
51 size_t __len
= min(__from_end
- __from
, __to_end
- __to
);
52 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
53 __c_locale __old
= __uselocale(_M_c_locale_codecvt
);
55 size_t __conv
= wcsrtombs(__to
, &__from
, __len
, &__state
);
56 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
63 __to_next
= __to
+ __conv
;
66 else if (__conv
> 0 && __conv
< __len
)
69 __to_next
= __to
+ __conv
;
79 codecvt
<wchar_t, char, mbstate_t>::
80 do_in(state_type
& __state
, const extern_type
* __from
,
81 const extern_type
* __from_end
, const extern_type
*& __from_next
,
82 intern_type
* __to
, intern_type
* __to_end
,
83 intern_type
*& __to_next
) const
86 size_t __len
= min(__from_end
- __from
, __to_end
- __to
);
87 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
88 __c_locale __old
= __uselocale(_M_c_locale_codecvt
);
90 size_t __conv
= mbsrtowcs(__to
, &__from
, __len
, &__state
);
91 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
98 __to_next
= __to
+ __conv
;
101 else if (__conv
> 0 && __conv
< __len
)
103 __from_next
= __from
;
104 __to_next
= __to
+ __conv
;