GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/locale/_wcstod.h Lines: 0 58 0.0 %
Date: 2017-11-13 Branches: 0 42 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: _wcstod.h,v 1.4 2015/10/01 02:32:07 guenther Exp $	*/
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/* $NetBSD: wcstod.c,v 1.4 2001/10/28 12:08:43 yamt Exp $ */
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/*-
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 * Copyright (c)1999, 2000, 2001 Citrus Project,
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 * All rights reserved.
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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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 *	$Citrus: xpg4dl/FreeBSD/lib/libc/locale/wcstod.c,v 1.2 2001/09/27 16:23:57 yamt Exp $
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 */
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/*
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 * function template for wcstof, wcstod and wcstold.
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 *
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 * parameters:
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 *	FUNCNAME : function name
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 *      float_type : return type
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 *      STRTOD_FUNC : conversion function
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 */
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float_type
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FUNCNAME(const wchar_t *nptr, wchar_t **endptr)
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{
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	const wchar_t *src;
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	size_t size;
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	const wchar_t *start;
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	const wchar_t *aftersign;
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	/*
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	 * check length of string and call strtod
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	 */
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	src = nptr;
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	/* skip space first */
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	while (iswspace(*src)) {
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		src++;
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	}
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	/* get length of string */
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	start = src;
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	if (*src && wcschr(L"+-", *src))
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		src++;
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	aftersign = src;
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	if (wcsncasecmp(src, L"inf", 3) == 0) {
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		src += 3;
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		if (wcsncasecmp(src, L"inity", 5) == 0)
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			src += 5;
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		goto match;
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	}
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	if (wcsncasecmp(src, L"nan", 3) == 0) {
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		src += 3;
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		if (*src == L'(') {
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			size = 1;
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			while (src[size] != L'\0' && src[size] != L')')
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				size++;
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			if (src[size] == L')')
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				src += size + 1;
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		}
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		goto match;
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	}
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	size = wcsspn(src, L"0123456789");
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	src += size;
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	if (*src == L'.') {/* XXX use localeconv */
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		src++;
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		size = wcsspn(src, L"0123456789");
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		src += size;
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	}
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	if (*src && wcschr(L"Ee", *src)) {
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		src++;
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		if (*src && wcschr(L"+-", *src))
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			src++;
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		size = wcsspn(src, L"0123456789");
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		src += size;
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	}
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match:
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	size = src - start;
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	/*
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	 * convert to a char-string and pass it to strtod.
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	 */
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	if (src > aftersign) {
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		mbstate_t st;
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		char *buf;
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		char *end;
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		const wchar_t *s;
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		size_t size_converted;
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		float_type result;
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		size_t bufsize;
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		s = start;
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		memset(&st, 0, sizeof(st));
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		bufsize = wcsnrtombs(NULL, &s, size, 0, &st);
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		buf = malloc(bufsize + 1);
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		if (!buf) {
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			errno = ENOMEM; /* XXX */
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			goto fail;
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		}
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		s = start;
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		memset(&st, 0, sizeof(st));
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		size_converted = wcsnrtombs(buf, &s, size, bufsize, &st);
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		if (size_converted != bufsize) {
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			/* XXX should not happen */
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			free(buf);
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			errno = EILSEQ;
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			goto fail;
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		}
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		buf[bufsize] = 0;
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		result = STRTOD_FUNC(buf, &end);
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		if (endptr) {
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			const char *s = buf;
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			memset(&st, 0, sizeof(st));
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			size = mbsnrtowcs(NULL, &s, end - buf, 0, &st);
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			*endptr = (wchar_t*)start + size;
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		}
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		free(buf);
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		return result;
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	}
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fail:
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	if (endptr)
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		*endptr = (wchar_t*)nptr;
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	return 0;
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}
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DEF_STRONG(FUNCNAME);