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1 /*
2  * Copyright 2010 VMware, Inc.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial portions
15  * of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  */
25 
26 
27 #include <stdlib.h>
28 
29 #ifdef _GNU_SOURCE
30 #include <locale.h>
31 #ifdef HAVE_XLOCALE_H
32 #include <xlocale.h>
33 static locale_t loc;
34 #endif
35 #endif
36 
37 #include "strtod.h"
38 
39 
40 void
_mesa_locale_init(void)41 _mesa_locale_init(void)
42 {
43 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
44    loc = newlocale(LC_CTYPE_MASK, "C", NULL);
45 #endif
46 }
47 
48 void
_mesa_locale_fini(void)49 _mesa_locale_fini(void)
50 {
51 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
52    freelocale(loc);
53 #endif
54 }
55 
56 /**
57  * Wrapper around strtod which uses the "C" locale so the decimal
58  * point is always '.'
59  */
60 double
_mesa_strtod(const char * s,char ** end)61 _mesa_strtod(const char *s, char **end)
62 {
63 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
64    return strtod_l(s, end, loc);
65 #else
66    return strtod(s, end);
67 #endif
68 }
69 
70 
71 /**
72  * Wrapper around strtof which uses the "C" locale so the decimal
73  * point is always '.'
74  */
75 float
_mesa_strtof(const char * s,char ** end)76 _mesa_strtof(const char *s, char **end)
77 {
78 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
79    return strtof_l(s, end, loc);
80 #elif defined(HAVE_STRTOF)
81    return strtof(s, end);
82 #else
83    return (float) strtod(s, end);
84 #endif
85 }
86