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https://github.com/freebsd/freebsd-src
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559a218c9b
These sys/cdefs.h are not needed. Purge them. They are mostly left-over from the $FreeBSD$ removal. A few in libc are still required for macros that cdefs.h defines. Keep those. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D42385
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2002, 2003 Tim J. Robbins
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* All rights reserved.
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*
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* Copyright (c) 2011 The FreeBSD Foundation
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*
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* Portions of this software were developed by David Chisnall
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <wchar.h>
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#include <wctype.h>
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#include "xlocale_private.h"
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/*
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* See wcstod() for comments as to the logic used.
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*/
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long double
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wcstold_l(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
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locale_t locale)
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{
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static const mbstate_t initial;
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mbstate_t mbs;
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long double val;
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char *buf, *end;
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const wchar_t *wcp;
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size_t len;
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size_t spaces;
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FIX_LOCALE(locale);
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wcp = nptr;
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spaces = 0;
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while (iswspace_l(*wcp, locale)) {
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wcp++;
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spaces++;
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}
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mbs = initial;
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if ((len = wcsrtombs_l(NULL, &wcp, 0, &mbs, locale)) == (size_t)-1) {
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if (endptr != NULL)
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*endptr = (wchar_t *)nptr;
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return (0.0);
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}
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if ((buf = malloc(len + 1)) == NULL) {
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if (endptr != NULL)
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*endptr = (wchar_t *)nptr;
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return (0.0);
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}
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mbs = initial;
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wcsrtombs_l(buf, &wcp, len + 1, &mbs, locale);
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val = strtold_l(buf, &end, locale);
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if (endptr != NULL) {
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*endptr = (wchar_t *)nptr + (end - buf);
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if (buf != end)
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*endptr += spaces;
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}
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free(buf);
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return (val);
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}
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long double
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wcstold(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr)
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{
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return wcstold_l(nptr, endptr, __get_locale());
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}
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