diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/config/locale/generic/codecvt_members.cc')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/config/locale/generic/codecvt_members.cc | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/config/locale/generic/codecvt_members.cc b/gcc-4.4.3/libstdc++-v3/config/locale/generic/codecvt_members.cc deleted file mode 100644 index b68e18aaf..000000000 --- a/gcc-4.4.3/libstdc++-v3/config/locale/generic/codecvt_members.cc +++ /dev/null @@ -1,217 +0,0 @@ -// std::codecvt implementation details, generic version -*- C++ -*- - -// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009 -// Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 3, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// Under Section 7 of GPL version 3, you are granted additional -// permissions described in the GCC Runtime Library Exception, version -// 3.1, as published by the Free Software Foundation. - -// You should have received a copy of the GNU General Public License and -// a copy of the GCC Runtime Library Exception along with this program; -// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -// <http://www.gnu.org/licenses/>. - -// -// ISO C++ 14882: 22.2.1.5 - Template class codecvt -// - -// Written by Benjamin Kosnik <bkoz@redhat.com> - -#include <locale> -#include <cstdlib> // For MB_CUR_MAX -#include <climits> // For MB_LEN_MAX -#include <cstring> - -_GLIBCXX_BEGIN_NAMESPACE(std) - - // Specializations. -#ifdef _GLIBCXX_USE_WCHAR_T - codecvt_base::result - codecvt<wchar_t, char, mbstate_t>:: - do_out(state_type& __state, const intern_type* __from, - const intern_type* __from_end, const intern_type*& __from_next, - extern_type* __to, extern_type* __to_end, - extern_type*& __to_next) const - { - result __ret = ok; - // The conversion must be done using a temporary destination buffer - // since it is not possible to pass the size of the buffer to wcrtomb - state_type __tmp_state(__state); - - // The conversion must be done by calling wcrtomb in a loop rather - // than using wcsrtombs because wcsrtombs assumes that the input is - // zero-terminated. - - // Either we can upper bound the total number of external characters to - // something smaller than __to_end - __to or the conversion must be done - // using a temporary destination buffer since it is not possible to - // pass the size of the buffer to wcrtomb - if (MB_CUR_MAX * (__from_end - __from) - (__to_end - __to) <= 0) - while (__from < __from_end) - { - const size_t __conv = wcrtomb(__to, *__from, &__tmp_state); - if (__conv == static_cast<size_t>(-1)) - { - __ret = error; - break; - } - __state = __tmp_state; - __to += __conv; - __from++; - } - else - { - extern_type __buf[MB_LEN_MAX]; - while (__from < __from_end && __to < __to_end) - { - const size_t __conv = wcrtomb(__buf, *__from, &__tmp_state); - if (__conv == static_cast<size_t>(-1)) - { - __ret = error; - break; - } - else if (__conv > static_cast<size_t>(__to_end - __to)) - { - __ret = partial; - break; - } - - memcpy(__to, __buf, __conv); - __state = __tmp_state; - __to += __conv; - __from++; - } - } - - if (__ret == ok && __from < __from_end) - __ret = partial; - - __from_next = __from; - __to_next = __to; - return __ret; - } - - codecvt_base::result - codecvt<wchar_t, char, mbstate_t>:: - do_in(state_type& __state, const extern_type* __from, - const extern_type* __from_end, const extern_type*& __from_next, - intern_type* __to, intern_type* __to_end, - intern_type*& __to_next) const - { - result __ret = ok; - // This temporary state object is neccessary so __state won't be modified - // if [__from, __from_end) is a partial multibyte character. - state_type __tmp_state(__state); - - // Conversion must be done by calling mbrtowc in a loop rather than - // by calling mbsrtowcs because mbsrtowcs assumes that the input - // sequence is zero-terminated. - while (__from < __from_end && __to < __to_end) - { - size_t __conv = mbrtowc(__to, __from, __from_end - __from, - &__tmp_state); - if (__conv == static_cast<size_t>(-1)) - { - __ret = error; - break; - } - else if (__conv == static_cast<size_t>(-2)) - { - // It is unclear what to return in this case (see DR 382). - __ret = partial; - break; - } - else if (__conv == 0) - { - // XXX Probably wrong for stateful encodings - __conv = 1; - *__to = L'\0'; - } - - __state = __tmp_state; - __to++; - __from += __conv; - } - - // It is not clear that __from < __from_end implies __ret != ok - // (see DR 382). - if (__ret == ok && __from < __from_end) - __ret = partial; - - __from_next = __from; - __to_next = __to; - return __ret; - } - - int - codecvt<wchar_t, char, mbstate_t>:: - do_encoding() const throw() - { - // XXX This implementation assumes that the encoding is - // stateless and is either single-byte or variable-width. - int __ret = 0; - if (MB_CUR_MAX == 1) - __ret = 1; - return __ret; - } - - int - codecvt<wchar_t, char, mbstate_t>:: - do_max_length() const throw() - { - // XXX Probably wrong for stateful encodings. - int __ret = MB_CUR_MAX; - return __ret; - } - - int - codecvt<wchar_t, char, mbstate_t>:: - do_length(state_type& __state, const extern_type* __from, - const extern_type* __end, size_t __max) const - { - int __ret = 0; - state_type __tmp_state(__state); - - while (__from < __end && __max) - { - size_t __conv = mbrtowc(NULL, __from, __end - __from, &__tmp_state); - if (__conv == static_cast<size_t>(-1)) - { - // Invalid source character - break; - } - else if (__conv == static_cast<size_t>(-2)) - { - // Remainder of input does not form a complete destination - // character. - break; - } - else if (__conv == 0) - { - // XXX Probably wrong for stateful encodings - __conv = 1; - } - - __state = __tmp_state; - __from += __conv; - __ret += __conv; - __max--; - } - - return __ret; - } -#endif - -_GLIBCXX_END_NAMESPACE |