xref: /third_party/mesa3d/src/util/strtod.c (revision bf215546)
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#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
30#include <locale.h>
31#ifdef HAVE_XLOCALE_H
32#include <xlocale.h>
33#endif
34static locale_t loc;
35#endif
36
37#include "strtod.h"
38
39
40void
41_mesa_locale_init(void)
42{
43#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
44   loc = newlocale(LC_CTYPE_MASK, "C", NULL);
45#endif
46}
47
48void
49_mesa_locale_fini(void)
50{
51#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
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 */
60double
61_mesa_strtod(const char *s, char **end)
62{
63#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
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 */
75float
76_mesa_strtof(const char *s, char **end)
77{
78#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
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