diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/config/locale/gnu/c_locale.h')
-rw-r--r-- | gcc-4.4.3/libstdc++-v3/config/locale/gnu/c_locale.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/config/locale/gnu/c_locale.h b/gcc-4.4.3/libstdc++-v3/config/locale/gnu/c_locale.h new file mode 100644 index 000000000..749a97ad6 --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/config/locale/gnu/c_locale.h @@ -0,0 +1,110 @@ +// Wrapper for underlying C-language localization -*- C++ -*- + +// Copyright (C) 2001, 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/>. + +/** @file c++locale.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +// +// ISO C++ 14882: 22.8 Standard locale categories. +// + +// Written by Benjamin Kosnik <bkoz@redhat.com> + +#ifndef _GLIBCXX_CXX_LOCALE_H +#define _GLIBCXX_CXX_LOCALE_H 1 + +#pragma GCC system_header + +#include <clocale> +#include <cstddef> + +#define _GLIBCXX_C_LOCALE_GNU 1 + +#define _GLIBCXX_NUM_CATEGORIES 6 + +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) +_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) + + extern "C" __typeof(uselocale) __uselocale; + +_GLIBCXX_END_NAMESPACE +#endif + +_GLIBCXX_BEGIN_NAMESPACE(std) + + typedef __locale_t __c_locale; + + // Convert numeric value of type double and long double to string and + // return length of string. If vsnprintf is available use it, otherwise + // fall back to the unsafe vsprintf which, in general, can be dangerous + // and should be avoided. + inline int + __convert_from_v(const __c_locale& __cloc __attribute__ ((__unused__)), + char* __out, + const int __size __attribute__ ((__unused__)), + const char* __fmt, ...) + { +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) + __c_locale __old = __gnu_cxx::__uselocale(__cloc); +#else + char* __old = std::setlocale(LC_NUMERIC, NULL); + char* __sav = NULL; + if (__builtin_strcmp(__old, "C")) + { + const size_t __len = __builtin_strlen(__old) + 1; + __sav = new char[__len]; + __builtin_memcpy(__sav, __old, __len); + std::setlocale(LC_NUMERIC, "C"); + } +#endif + + __builtin_va_list __args; + __builtin_va_start(__args, __fmt); + +#ifdef _GLIBCXX_USE_C99 + const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args); +#else + const int __ret = __builtin_vsprintf(__out, __fmt, __args); +#endif + + __builtin_va_end(__args); + +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) + __gnu_cxx::__uselocale(__old); +#else + if (__sav) + { + std::setlocale(LC_NUMERIC, __sav); + delete [] __sav; + } +#endif + return __ret; + } + +_GLIBCXX_END_NAMESPACE + +#endif |