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Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/src/codecvt.cc')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/src/codecvt.cc | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/src/codecvt.cc b/gcc-4.4.3/libstdc++-v3/src/codecvt.cc new file mode 100644 index 000000000..f88eda59c --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/src/codecvt.cc @@ -0,0 +1,148 @@ +// Copyright (C) 2000, 2002, 2004, 2005, 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/>. + +// Written by Benjamin Kosnik <bkoz@redhat.com> + +#include <locale> + +_GLIBCXX_BEGIN_NAMESPACE(std) + + // Definitions for locale::id of standard facets that are specialized. + locale::id codecvt<char, char, mbstate_t>::id; + +#ifdef _GLIBCXX_USE_WCHAR_T + locale::id codecvt<wchar_t, char, mbstate_t>::id; +#endif + + codecvt<char, char, mbstate_t>:: + codecvt(size_t __refs) + : __codecvt_abstract_base<char, char, mbstate_t>(__refs), + _M_c_locale_codecvt(_S_get_c_locale()) + { } + + codecvt<char, char, mbstate_t>:: + codecvt(__c_locale __cloc, size_t __refs) + : __codecvt_abstract_base<char, char, mbstate_t>(__refs), + _M_c_locale_codecvt(_S_clone_c_locale(__cloc)) + { } + + codecvt<char, char, mbstate_t>:: + ~codecvt() + { _S_destroy_c_locale(_M_c_locale_codecvt); } + + codecvt_base::result + codecvt<char, char, mbstate_t>:: + do_out(state_type&, const intern_type* __from, + const intern_type*, const intern_type*& __from_next, + extern_type* __to, extern_type*, + extern_type*& __to_next) const + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // According to the resolution of DR19, "If returns noconv [...] + // there are no changes to the values in [to, to_limit)." + __from_next = __from; + __to_next = __to; + return noconv; + } + + codecvt_base::result + codecvt<char, char, mbstate_t>:: + do_unshift(state_type&, extern_type* __to, + extern_type*, extern_type*& __to_next) const + { + __to_next = __to; + return noconv; + } + + codecvt_base::result + codecvt<char, char, mbstate_t>:: + do_in(state_type&, const extern_type* __from, + const extern_type*, const extern_type*& __from_next, + intern_type* __to, intern_type*, intern_type*& __to_next) const + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // According to the resolution of DR19, "If returns noconv [...] + // there are no changes to the values in [to, to_limit)." + __from_next = __from; + __to_next = __to; + return noconv; + } + + int + codecvt<char, char, mbstate_t>:: + do_encoding() const throw() + { return 1; } + + bool + codecvt<char, char, mbstate_t>:: + do_always_noconv() const throw() + { return true; } + + int + codecvt<char, char, mbstate_t>:: + do_length (state_type&, const extern_type* __from, + const extern_type* __end, size_t __max) const + { + size_t __d = static_cast<size_t>(__end - __from); + return std::min(__max, __d); + } + + int + codecvt<char, char, mbstate_t>:: + do_max_length() const throw() + { return 1; } + +#ifdef _GLIBCXX_USE_WCHAR_T + // codecvt<wchar_t, char, mbstate_t> required specialization + codecvt<wchar_t, char, mbstate_t>:: + codecvt(size_t __refs) + : __codecvt_abstract_base<wchar_t, char, mbstate_t>(__refs), + _M_c_locale_codecvt(_S_get_c_locale()) + { } + + codecvt<wchar_t, char, mbstate_t>:: + codecvt(__c_locale __cloc, size_t __refs) + : __codecvt_abstract_base<wchar_t, char, mbstate_t>(__refs), + _M_c_locale_codecvt(_S_clone_c_locale(__cloc)) + { } + + codecvt<wchar_t, char, mbstate_t>:: + ~codecvt() + { _S_destroy_c_locale(_M_c_locale_codecvt); } + + codecvt_base::result + codecvt<wchar_t, char, mbstate_t>:: + do_unshift(state_type&, extern_type* __to, + extern_type*, extern_type*& __to_next) const + { + // XXX Probably wrong for stateful encodings + __to_next = __to; + return noconv; + } + + bool + codecvt<wchar_t, char, mbstate_t>:: + do_always_noconv() const throw() + { return false; } +#endif // _GLIBCXX_USE_WCHAR_T + +_GLIBCXX_END_NAMESPACE |