mesa/src/util/strtod.c

96 lines
2.4 KiB
C

/*
* Copyright 2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
#include <locale.h>
#ifdef HAVE_XLOCALE_H
#include <xlocale.h>
#endif
#endif
#include "strtod.h"
#include "util/u_call_once.h"
#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
static locale_t loc;
static void
_mesa_locale_fini(void)
{
freelocale(loc);
}
static void
_mesa_locale_init_once(void)
{
loc = newlocale(LC_CTYPE_MASK, "C", NULL);
atexit(_mesa_locale_fini);
}
static ALWAYS_INLINE locale_t
_mesa_get_locale(void)
{
static util_once_flag once = UTIL_ONCE_FLAG_INIT;
util_call_once(&once, _mesa_locale_init_once);
return loc;
}
#endif
/**
* Wrapper around strtod which uses the "C" locale so the decimal
* point is always '.'
*/
double
_mesa_strtod(const char *s, char **end)
{
#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
return strtod_l(s, end, _mesa_get_locale());
#else
return strtod(s, end);
#endif
}
/**
* Wrapper around strtof which uses the "C" locale so the decimal
* point is always '.'
*/
float
_mesa_strtof(const char *s, char **end)
{
#if defined(_GNU_SOURCE) && defined(HAVE_STRTOD_L)
return strtof_l(s, end, _mesa_get_locale());
#elif defined(HAVE_STRTOF)
return strtof(s, end);
#else
return (float) strtod(s, end);
#endif
}