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1 | // Wrapper for underlying C-language localization -*- C++ -*- |
2 | ||
748086b7 | 3 | // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 |
964c5329 | 4 | // Free Software Foundation, Inc. |
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5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
748086b7 | 9 | // Free Software Foundation; either version 3, or (at your option) |
0214010c BK |
10 | // any later version. |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
748086b7 JJ |
17 | // Under Section 7 of GPL version 3, you are granted additional |
18 | // permissions described in the GCC Runtime Library Exception, version | |
19 | // 3.1, as published by the Free Software Foundation. | |
0214010c | 20 | |
748086b7 JJ |
21 | // You should have received a copy of the GNU General Public License and |
22 | // a copy of the GCC Runtime Library Exception along with this program; | |
23 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | // <http://www.gnu.org/licenses/>. | |
0214010c | 25 | |
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26 | /** @file c++locale.h |
27 | * This is an internal header file, included by other library headers. | |
28 | * You should not attempt to use it directly. | |
29 | */ | |
30 | ||
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31 | // |
32 | // ISO C++ 14882: 22.8 Standard locale categories. | |
33 | // | |
34 | ||
35 | // Written by Benjamin Kosnik <bkoz@redhat.com> | |
36 | ||
311635d1 BK |
37 | #ifndef _GLIBCXX_CXX_LOCALE_H |
38 | #define _GLIBCXX_CXX_LOCALE_H 1 | |
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39 | |
40 | #pragma GCC system_header | |
41 | ||
7a6f7290 | 42 | #include <clocale> |
538075fe | 43 | #include <cstddef> |
7a6f7290 | 44 | |
3d7c150e | 45 | #define _GLIBCXX_C_LOCALE_GNU 1 |
9e5c7dba | 46 | |
3d7c150e | 47 | #define _GLIBCXX_NUM_CATEGORIES 6 |
aa53f832 | 48 | |
714e9334 | 49 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) |
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50 | _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) |
51 | ||
714e9334 | 52 | extern "C" __typeof(uselocale) __uselocale; |
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53 | |
54 | _GLIBCXX_END_NAMESPACE | |
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55 | #endif |
56 | ||
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57 | _GLIBCXX_BEGIN_NAMESPACE(std) |
58 | ||
0214010c | 59 | typedef __locale_t __c_locale; |
14516325 | 60 | |
964c5329 PC |
61 | // Convert numeric value of type double and long double to string and |
62 | // return length of string. If vsnprintf is available use it, otherwise | |
63 | // fall back to the unsafe vsprintf which, in general, can be dangerous | |
64 | // and should be avoided. | |
65 | inline int | |
66 | __convert_from_v(const __c_locale& __cloc __attribute__ ((__unused__)), | |
67 | char* __out, | |
68 | const int __size __attribute__ ((__unused__)), | |
69 | const char* __fmt, ...) | |
70 | { | |
714e9334 | 71 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) |
964c5329 | 72 | __c_locale __old = __gnu_cxx::__uselocale(__cloc); |
14516325 | 73 | #else |
f697c80d PC |
74 | char* __old = std::setlocale(LC_NUMERIC, NULL); |
75 | char* __sav = NULL; | |
76 | if (__builtin_strcmp(__old, "C")) | |
77 | { | |
78 | const size_t __len = __builtin_strlen(__old) + 1; | |
aaee3e89 | 79 | __sav = new char[__len]; |
f697c80d PC |
80 | __builtin_memcpy(__sav, __old, __len); |
81 | std::setlocale(LC_NUMERIC, "C"); | |
82 | } | |
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83 | #endif |
84 | ||
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85 | __builtin_va_list __args; |
86 | __builtin_va_start(__args, __fmt); | |
964c5329 | 87 | |
3d7c150e | 88 | #ifdef _GLIBCXX_USE_C99 |
99408976 | 89 | const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args); |
14516325 | 90 | #else |
99408976 | 91 | const int __ret = __builtin_vsprintf(__out, __fmt, __args); |
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92 | #endif |
93 | ||
32c8d4b1 | 94 | __builtin_va_end(__args); |
964c5329 | 95 | |
14516325 | 96 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) |
964c5329 | 97 | __gnu_cxx::__uselocale(__old); |
14516325 | 98 | #else |
f697c80d PC |
99 | if (__sav) |
100 | { | |
101 | std::setlocale(LC_NUMERIC, __sav); | |
102 | delete [] __sav; | |
103 | } | |
14516325 | 104 | #endif |
964c5329 PC |
105 | return __ret; |
106 | } | |
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107 | |
108 | _GLIBCXX_END_NAMESPACE | |
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109 | |
110 | #endif |