diff options
Diffstat (limited to 'libstdc++-v3/config/locale/gnu/codecvt_members.cc')
| -rw-r--r-- | libstdc++-v3/config/locale/gnu/codecvt_members.cc | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/libstdc++-v3/config/locale/gnu/codecvt_members.cc b/libstdc++-v3/config/locale/gnu/codecvt_members.cc new file mode 100644 index 00000000000..aa855a6a1f2 --- /dev/null +++ b/libstdc++-v3/config/locale/gnu/codecvt_members.cc @@ -0,0 +1,113 @@ +// std::codecvt implementation details, GNU version -*- C++ -*- + +// Copyright (C) 2002 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 2, 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. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +// +// ISO C++ 14882: 22.2.1.5 - Template class codecvt +// + +// Written by Benjamin Kosnik <bkoz@redhat.com> + +#include <locale> +#include "c++locale_internal.h" + +namespace std +{ + // Specializations. +#ifdef _GLIBCPP_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 = error; + size_t __len = min(__from_end - __from, __to_end - __to); +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) + __c_locale __old = __uselocale(_M_c_locale_codecvt); +#endif + size_t __conv = wcsrtombs(__to, &__from, __len, &__state); +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) + __uselocale(__old); +#endif + + if (__conv == __len) + { + __from_next = __from; + __to_next = __to + __conv; + __ret = ok; + } + else if (__conv > 0 && __conv < __len) + { + __from_next = __from; + __to_next = __to + __conv; + __ret = partial; + } + else + __ret = error; + + 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 = error; + size_t __len = min(__from_end - __from, __to_end - __to); +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) + __c_locale __old = __uselocale(_M_c_locale_codecvt); +#endif + size_t __conv = mbsrtowcs(__to, &__from, __len, &__state); +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) + __uselocale(__old); +#endif + + if (__conv == __len) + { + __from_next = __from; + __to_next = __to + __conv; + __ret = ok; + } + else if (__conv > 0 && __conv < __len) + { + __from_next = __from; + __to_next = __to + __conv; + __ret = partial; + } + else + __ret = error; + + return __ret; + } +#endif +} |