1 // Copyright (C) 2000 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 2, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING. If not, write to the Free
16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19 // As a special exception, you may use this file as part of a free software
20 // library without restriction. Specifically, if other files instantiate
21 // templates or use macros or inline functions from this file, or you compile
22 // this file and link it with other files to produce an executable, this
23 // file does not by itself cause the resulting executable to be covered by
24 // the GNU General Public License. This exception does not however
25 // invalidate any other reasons why the executable file might be covered by
26 // the GNU General Public License.
28 // Written by Benjamin Kosnik <bkoz@cygnus.com>
30 #include <bits/std_locale.h>
34 #ifdef _GLIBCPP_USE_WCHAR_T
35 // Definitions for static const data members of __enc_traits.
36 const int __enc_traits::_S_max_size
;
37 #endif /* _GLIBCPP_USE_WCHAR_T */
39 codecvt
<char, char, mbstate_t>::
40 codecvt(size_t __refs
)
41 : __codecvt_abstract_base
<char, char, mbstate_t>(__refs
)
44 codecvt
<char, char, mbstate_t>::
48 codecvt
<char, char, mbstate_t>::
49 do_out(state_type
& /*__state*/, const intern_type
* __from
,
50 const intern_type
* __from_end
, const intern_type
*& __from_next
,
51 extern_type
* __to
, extern_type
* __to_end
,
52 extern_type
*& __to_next
) const
54 size_t __len
= min(__from_end
- __from
, __to_end
- __to
);
55 memcpy(__to
, __from
, __len
);
62 codecvt
<char, char, mbstate_t>::
63 do_unshift(state_type
& /*__state*/, extern_type
* __to
,
64 extern_type
* /*__to_end*/, extern_type
*& __to_next
) const
71 codecvt
<char, char, mbstate_t>::
72 do_in(state_type
& /*__state*/, const extern_type
* __from
,
73 const extern_type
* __from_end
, const extern_type
*& __from_next
,
74 intern_type
* __to
, intern_type
* __to_end
,
75 intern_type
*& __to_next
) const
77 size_t __len
= min(__from_end
- __from
, __to_end
- __to
);
78 memcpy(__to
, __from
, __len
);
85 codecvt
<char, char, mbstate_t>::
86 do_encoding() const throw()
90 codecvt
<char, char, mbstate_t>::
91 do_always_noconv() const throw()
95 codecvt
<char, char, mbstate_t>::
96 do_length (const state_type
& /*__state*/, const extern_type
* __from
,
97 const extern_type
* __end
, size_t __max
) const
98 { return min(__max
, static_cast<size_t>(__end
- __from
)); }
101 codecvt
<char, char, mbstate_t>::
102 do_max_length() const throw()
105 #ifdef _GLIBCPP_USE_WCHAR_T
106 // codecvt<wchar_t, char, mbstate_t> required specialization
107 codecvt
<wchar_t, char, mbstate_t>::
108 codecvt(size_t __refs
)
109 : __codecvt_abstract_base
<wchar_t, char, mbstate_t>(__refs
) { }
111 codecvt
<wchar_t, char, mbstate_t>::
115 codecvt
<wchar_t, char, mbstate_t>::
116 do_out(state_type
& __state
, const intern_type
* __from
,
117 const intern_type
* __from_end
, const intern_type
*& __from_next
,
118 extern_type
* __to
, extern_type
* __to_end
,
119 extern_type
*& __to_next
) const
121 result __ret
= error
;
122 size_t __len
= min(__from_end
- __from
, __to_end
- __to
);
123 size_t __conv
= wcsrtombs(__to
, &__from
, __len
, &__state
);
127 __from_next
= __from
;
128 __to_next
= __to
+ __conv
;
131 else if (__conv
> 0 && __conv
< __len
)
133 __from_next
= __from
;
134 __to_next
= __to
+ __conv
;
144 codecvt
<wchar_t, char, mbstate_t>::
145 do_unshift(state_type
& /*__state*/, extern_type
* __to
,
146 extern_type
* /*__to_end*/, extern_type
*& __to_next
) const
153 codecvt
<wchar_t, char, mbstate_t>::
154 do_in(state_type
& __state
, const extern_type
* __from
,
155 const extern_type
* __from_end
, const extern_type
*& __from_next
,
156 intern_type
* __to
, intern_type
* __to_end
,
157 intern_type
*& __to_next
) const
159 result __ret
= error
;
160 size_t __len
= min(__from_end
- __from
, __to_end
- __to
);
161 size_t __conv
= mbsrtowcs(__to
, &__from
, __len
, &__state
);
165 __from_next
= __from
;
166 __to_next
= __to
+ __conv
;
169 else if (__conv
> 0 && __conv
< __len
)
171 __from_next
= __from
;
172 __to_next
= __to
+ __conv
;
182 codecvt
<wchar_t, char, mbstate_t>::
183 do_encoding() const throw()
187 codecvt
<wchar_t, char, mbstate_t>::
188 do_always_noconv() const throw()
192 codecvt
<wchar_t, char, mbstate_t>::
193 do_length(const state_type
& /*__state*/, const extern_type
* __from
,
194 const extern_type
* __end
, size_t __max
) const
195 { return min(__max
, static_cast<size_t>(__end
- __from
)); }
198 codecvt
<wchar_t, char, mbstate_t>::
199 do_max_length() const throw()
201 #endif // _GLIBCPP_USE_WCHAR_T