1 /* Convert string to double, using the C locale.
3 Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
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 3 of the License, or
8 (at your option) any later version.
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.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 /* Written by Paul Eggert. */
30 # define C_STRTOD c_strtold
31 # define DOUBLE long double
32 # define STRTOD_L strtold_l
34 # define C_STRTOD c_strtod
35 # define DOUBLE double
36 # define STRTOD_L strtod_l
39 /* c_strtold falls back on strtod if strtold doesn't conform to C99. */
40 #if LONG && HAVE_C99_STRTOLD
41 # define STRTOD strtold
43 # define STRTOD strtod
47 C_STRTOD (char const *nptr
, char **endptr
)
53 locale_t c_locale
= newlocale (LC_ALL_MASK
, "C", 0);
54 r
= STRTOD_L (nptr
, endptr
, c_locale
);
55 freelocale (c_locale
);
59 char *saved_locale
= setlocale (LC_NUMERIC
, NULL
);
63 saved_locale
= xstrdup (saved_locale
);
64 setlocale (LC_NUMERIC
, "C");
67 r
= STRTOD (nptr
, endptr
);
71 setlocale (LC_NUMERIC
, saved_locale
);