c_locale.h revision 107606
1// Wrapper for underlying C-language localization -*- C++ -*- 2 3// Copyright (C) 2001, 2002 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19// USA. 20 21// As a special exception, you may use this file as part of a free software 22// library without restriction. Specifically, if other files instantiate 23// templates or use macros or inline functions from this file, or you compile 24// this file and link it with other files to produce an executable, this 25// file does not by itself cause the resulting executable to be covered by 26// the GNU General Public License. This exception does not however 27// invalidate any other reasons why the executable file might be covered by 28// the GNU General Public License. 29 30// 31// ISO C++ 14882: 22.8 Standard locale categories. 32// 33 34// Written by Benjamin Kosnik <bkoz@redhat.com> 35 36#include <clocale> 37#include <langinfo.h> // For codecvt 38#include <iconv.h> // For codecvt using iconv, iconv_t 39#include <libintl.h> // For messages 40 41#define _GLIBCPP_C_LOCALE_GNU 1 42 43#define _GLIBCPP_NUM_CATEGORIES 6 44 45#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) 46namespace __gnu_cxx 47{ 48 extern "C" __typeof(uselocale) __uselocale; 49} 50#endif 51 52namespace std 53{ 54 typedef __locale_t __c_locale; 55 56 template<typename _Tv> 57 int 58 __convert_from_v(char* __out, const int __size, const char* __fmt, 59#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) 60 _Tv __v, const __c_locale& __cloc, int __prec = -1) 61 { 62 __c_locale __old = __gnu_cxx::__uselocale(__cloc); 63#else 64 _Tv __v, const __c_locale&, int __prec = -1) 65 { 66 char* __old = setlocale(LC_ALL, NULL); 67 char* __sav = static_cast<char*>(malloc(strlen(__old) + 1)); 68 if (__sav) 69 strcpy(__sav, __old); 70 setlocale(LC_ALL, "C"); 71#endif 72 73 int __ret; 74#ifdef _GLIBCPP_USE_C99 75 if (__prec >= 0) 76 __ret = snprintf(__out, __size, __fmt, __prec, __v); 77 else 78 __ret = snprintf(__out, __size, __fmt, __v); 79#else 80 if (__prec >= 0) 81 __ret = sprintf(__out, __fmt, __prec, __v); 82 else 83 __ret = sprintf(__out, __fmt, __v); 84#endif 85 86#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) 87 __gnu_cxx::__uselocale(__old); 88#else 89 setlocale(LC_ALL, __sav); 90 free(__sav); 91#endif 92 return __ret; 93 } 94} 95