80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/* Convert string to double, using the C locale.
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Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/* Written by Paul Eggert. */
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#include <config.h>
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#include "c-strtod.h"
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#include <locale.h>
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#include <stdlib.h>
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#include "xalloc.h"
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#if LONG
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# define C_STRTOD c_strtold
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# define DOUBLE long double
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# define STRTOD_L strtold_l
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#else
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# define C_STRTOD c_strtod
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# define DOUBLE double
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# define STRTOD_L strtod_l
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#endif
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/* c_strtold falls back on strtod if strtold doesn't conform to C99. */
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#if LONG && HAVE_C99_STRTOLD
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# define STRTOD strtold
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#else
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# define STRTOD strtod
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#endif
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DOUBLE
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C_STRTOD (char const *nptr, char **endptr)
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{
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DOUBLE r;
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#ifdef LC_ALL_MASK
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locale_t c_locale = newlocale (LC_ALL_MASK, "C", 0);
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r = STRTOD_L (nptr, endptr, c_locale);
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freelocale (c_locale);
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#else
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char *saved_locale = setlocale (LC_NUMERIC, NULL);
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if (saved_locale)
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{
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saved_locale = xstrdup (saved_locale);
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setlocale (LC_NUMERIC, "C");
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}
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r = STRTOD (nptr, endptr);
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if (saved_locale)
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{
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setlocale (LC_NUMERIC, saved_locale);
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free (saved_locale);
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}
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#endif
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return r;
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}
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