1 // Wrapper for underlying C-language localization -*- C++ -*-
3 // Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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)
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.
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,
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.
31 // ISO C++ 14882: 22.8 Standard locale categories.
34 // Written by Benjamin Kosnik <bkoz@redhat.com>
39 #pragma GCC system_header
43 #define _GLIBCXX_NUM_CATEGORIES 0
47 typedef int* __c_locale;
49 // Convert numeric value of type _Tv to string and return length of
50 // string. If snprintf is available use it, otherwise fall back to
51 // the unsafe sprintf which, in general, can be dangerous and should
53 template<typename _Tv>
55 __convert_from_v(char* __out,
56 const int __size __attribute__ ((__unused__)),
58 _Tv __v, const __c_locale&, int __prec = -1)
60 char* __old = setlocale(LC_ALL, NULL);
61 char* __sav = static_cast<char*>(malloc(strlen(__old) + 1));
64 setlocale(LC_ALL, "C");
67 #ifdef _GLIBCXX_USE_C99
69 __ret = snprintf(__out, __size, __fmt, __prec, __v);
71 __ret = snprintf(__out, __size, __fmt, __v);
74 __ret = sprintf(__out, __fmt, __prec, __v);
76 __ret = sprintf(__out, __fmt, __v);
78 setlocale(LC_ALL, __sav);