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-rw-r--r--lib/c-strtod.c81
1 files changed, 0 insertions, 81 deletions
diff --git a/lib/c-strtod.c b/lib/c-strtod.c
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1/* Convert string to double, using the C locale.
2
3 Copyright (C) 2003, 2004 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19/* Written by Paul Eggert. */
20
21#ifdef HAVE_CONFIG_H
22# include <config.h>
23#endif
24
25#include "c-strtod.h"
26
27#include <locale.h>
28#include <stdlib.h>
29
30#include "xalloc.h"
31
32#if LONG
33# define C_STRTOD c_strtold
34# define DOUBLE long double
35# define STRTOD_L strtold_l
36#else
37# define C_STRTOD c_strtod
38# define DOUBLE double
39# define STRTOD_L strtod_l
40#endif
41
42/* c_strtold falls back on strtod if strtold doesn't conform to C99. */
43#if LONG && HAVE_C99_STRTOLD
44# define STRTOD strtold
45#else
46# define STRTOD strtod
47#endif
48
49DOUBLE
50C_STRTOD (char const *nptr, char **endptr)
51{
52 DOUBLE r;
53
54#ifdef LC_ALL_MASK
55
56 locale_t c_locale = newlocale (LC_ALL_MASK, "C", 0);
57 r = STRTOD_L (nptr, endptr, c_locale);
58 freelocale (c_locale);
59
60#else
61
62 char *saved_locale = setlocale (LC_NUMERIC, NULL);
63
64 if (saved_locale)
65 {
66 saved_locale = xstrdup (saved_locale);
67 setlocale (LC_NUMERIC, "C");
68 }
69
70 r = STRTOD (nptr, endptr);
71
72 if (saved_locale)
73 {
74 setlocale (LC_NUMERIC, saved_locale);
75 free (saved_locale);
76 }
77
78#endif
79
80 return r;
81}