+++ /dev/null
-/*-
- * Copyright (c) 2002 Tim J. Robbins
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/locale/wcstod.c,v 1.4 2004/04/07 09:47:56 tjr Exp $");
-
-#include "xlocale_private.h"
-
-#include <stdlib.h>
-#include <wchar.h>
-#include <wctype.h>
-#include <_simple.h>
-
-/*
- * __wcs_end_offset calculates the offset to the end within the wide character
- * string, assuming numbers and letters are single bytes in multibyte
- * representation, get the actual decimal string for localeconv_l. If the
- * decimal point was within the string, compensate for the fact that the
- * (possible more than one byte) decimal point one takes one wide character.
- */
-__private_extern__ size_t
-__wcs_end_offset(const char * __restrict buf, const char * __restrict end, locale_t loc)
-{
- const char *decimalpoint = localeconv_l(loc)->decimal_point;
- size_t n = end - buf;
- char *p;
-
- if ((p = strnstr(buf, decimalpoint, n)) != NULL)
- n -= strlen(decimalpoint) - 1;
- return n;
-}
-
-/*
- * Convert a string to a double-precision number.
- *
- * This is the wide-character counterpart of strtod(). So that we do not
- * have to duplicate the code of strtod() here, we convert the supplied
- * wide character string to multibyte and call strtod() on the result.
- * This assumes that the multibyte encoding is compatible with ASCII
- * for at least the digits and letters. The radix character can be more
- * than one byte.
- */
-
-double
-wcstod_l(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
- locale_t loc)
-{
- static const mbstate_t initial;
- mbstate_t mbs;
- double val;
- char *buf, *end;
- size_t len;
- locale_t ctype;
- _SIMPLE_STRING b;
- char mb[MB_CUR_MAX + 1];
- const wchar_t *nptr0 = nptr;
- const wchar_t *first;
-
- NORMALIZE_LOCALE(loc);
- ctype = __numeric_ctype(loc);
-
- while (iswspace_l(*nptr, ctype))
- nptr++;
-
- if ((b = _simple_salloc()) == NULL)
- return (0.0);
-
- first = nptr;
- mbs = initial;
- while (*nptr && (len = wcrtomb_l(mb, *nptr, &mbs, ctype)) != (size_t)-1) {
- mb[len] = 0;
- if (_simple_sappend(b, mb) < 0) { /* no memory */
- _simple_sfree(b);
- return (0.0);
- }
- nptr++;
- }
-
- /* Let strtod() do most of the work for us. */
- buf = _simple_string(b);
- val = strtod_l(buf, &end, loc);
-
- /*
- * We only know where the number ended in the _multibyte_
- * representation of the string. If the caller wants to know
- * where it ended, count multibyte characters to find the
- * corresponding position in the wide char string.
- */
- if (endptr != NULL)
- /* XXX Assume each wide char is one byte. */
- *endptr = (end == buf) ? (wchar_t *)nptr0 : ((wchar_t *)first + __wcs_end_offset(buf, end, loc));
-
- _simple_sfree(b);
-
- return (val);
-}
-
-double
-wcstod(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr)
-{
- return wcstod_l(nptr, endptr, __current_locale());
-}