1 // localization implementation details, DragonFly version -*- C++ -*- 2 3 // Copyright (C) 2001-2018 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 /** @file bits/c++locale.h 26 * This is an internal header file, included by other library headers. 27 * Do not attempt to use it directly. @headername{locale} 28 */ 29 30 // 31 // ISO C++ 14882: 22.8 Standard locale categories. 32 // 33 34 // Written by Benjamin Kosnik <bkoz@redhat.com> 35 // Modified for DragonFly by John Marino <gnugcc@marino.st> 36 37 #ifndef _GLIBCXX_CXX_LOCALE_H 38 #define _GLIBCXX_CXX_LOCALE_H 1 39 40 #pragma GCC system_header 41 42 #include <clocale> 43 #ifndef __NetBSD__ 44 #include <xlocale.h> 45 #else 46 #include <cstdio> 47 #endif 48 49 #define _GLIBCXX_NUM_CATEGORIES 0 50 51 namespace std _GLIBCXX_VISIBILITY(default) 52 { 53 _GLIBCXX_BEGIN_NAMESPACE_VERSION 54 55 typedef int* __c_locale; 56 57 // Convert numeric value of type double and long double to string and 58 // return length of string. If vsnprintf is available use it, otherwise 59 // fall back to the unsafe vsprintf which, in general, can be dangerous 60 // and should be avoided. 61 inline int 62 __convert_from_v(const __c_locale& __cloc, char* __out, 63 const int __size __attribute__ ((__unused__)), 64 const char* __fmt, ...) 65 { 66 #ifndef __NetBSD__ 67 __c_locale __old = (__c_locale)uselocale((locale_t)__cloc); 68 #endif 69 70 __builtin_va_list __args; 71 __builtin_va_start(__args, __fmt); 72 73 #ifndef __NetBSD__ 74 #if _GLIBCXX_USE_C99_STDIO 75 const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args); 76 #else 77 const int __ret = __builtin_vsprintf(__out, __fmt, __args); 78 #endif 79 80 uselocale((locale_t)__old); 81 #else 82 const int __ret = vsnprintf_l(__out, __size, (locale_t)__cloc, __fmt, 83 __args); 84 #endif 85 86 __builtin_va_end(__args); 87 88 return __ret; 89 } 90 91 _GLIBCXX_END_NAMESPACE_VERSION 92 } // namespace 93 94 #endif 95