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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/stdlib/strtoumax.c	Lines:	0	38	0.0 %
Date:	2017-11-13	Branches:	0	38	0.0 %


/*	$OpenBSD: strtoumax.c,v 1.4 2017/07/06 16:23:11 millert Exp $	*/
/*
 * Copyright (c) 1992 The Regents of the University of California.
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <ctype.h>
#include <errno.h>
#include <inttypes.h>

/*
 * Convert a string to a uintmax_t.
 *
 * Ignores `locale' stuff.  Assumes that the upper and lower case
 * alphabets and digits are each contiguous.
 */
uintmax_t
strtoumax(const char *nptr, char **endptr, int base)
{
	const char *s;
	uintmax_t acc, cutoff;
	int c;
	int neg, any, cutlim;

	/*
	 * See strtoimax for comments as to the logic used.
	 */
	if (base < 0 || base == 1 || base > 36) {
		if (endptr != 0)
			*endptr = (char *)nptr;
		errno = EINVAL;
		return 0;
	}

	s = nptr;
	do {
		c = (unsigned char) *s++;
	} while (isspace(c));
	if (c == '-') {
		neg = 1;
		c = *s++;
	} else {
		neg = 0;
		if (c == '+')
			c = *s++;
	}
	if ((base == 0 || base == 16) && c == '0' &&
	    (*s == 'x' || *s == 'X') && isxdigit((unsigned char)s[1])) {
		c = s[1];
		s += 2;
		base = 16;
	}
	if (base == 0)
		base = c == '0' ? 8 : 10;

	cutoff = UINTMAX_MAX / (uintmax_t)base;
	cutlim = UINTMAX_MAX % (uintmax_t)base;
	for (acc = 0, any = 0;; c = (unsigned char) *s++) {
		if (isdigit(c))
			c -= '0';
		else if (isalpha(c))
			c -= isupper(c) ? 'A' - 10 : 'a' - 10;
		else
			break;
		if (c >= base)
			break;
		if (any < 0)
			continue;
		if (acc > cutoff || (acc == cutoff && c > cutlim)) {
			any = -1;
			acc = UINTMAX_MAX;
			errno = ERANGE;
		} else {
			any = 1;
			acc *= (uintmax_t)base;
			acc += c;
		}
	}
	if (neg && any > 0)
		acc = -acc;
	if (endptr != 0)
		*endptr = (char *) (any ? s - 1 : nptr);
	return (acc);
}
DEF_STRONG(strtoumax);


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: strtoumax.c,v 1.4 2017/07/06 16:23:11 millert Exp $ */
2			/*
3			* Copyright (c) 1992 The Regents of the University of California.
4			* All rights reserved.
5			*
6			* Redistribution and use in source and binary forms, with or without
7			* modification, are permitted provided that the following conditions
8			* are met:
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			* 2. Redistributions in binary form must reproduce the above copyright
12			* notice, this list of conditions and the following disclaimer in the
13			* documentation and/or other materials provided with the distribution.
14			* 3. Neither the name of the University nor the names of its contributors
15			* may be used to endorse or promote products derived from this software
16			* without specific prior written permission.
17			*
18			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28			* SUCH DAMAGE.
29			*/
30
31			#include <ctype.h>
32			#include <errno.h>
33			#include <inttypes.h>
34
35			/*
36			* Convert a string to a uintmax_t.
37			*
38			* Ignores `locale' stuff. Assumes that the upper and lower case
39			* alphabets and digits are each contiguous.
40			*/
41			uintmax_t
42			strtoumax(const char nptr, char *endptr, int base)
43			{
44			const char *s;
45			uintmax_t acc, cutoff;
46			int c;
47			int neg, any, cutlim;
48
49			/*
50			* See strtoimax for comments as to the logic used.
51			*/
52			if (base < 0 \|\| base == 1 \|\| base > 36) {
53			if (endptr != 0)
54			endptr = (char )nptr;
55			errno = EINVAL;
56			return 0;
57			}
58
59			s = nptr;
60			do {
61			c = (unsigned char) *s++;
62			} while (isspace(c));
63			if (c == '-') {
64			neg = 1;
65			c = *s++;
66			} else {
67			neg = 0;
68			if (c == '+')
69			c = *s++;
70			}
71			if ((base == 0 \|\| base == 16) && c == '0' &&
72			(s == 'x' \|\| s == 'X') && isxdigit((unsigned char)s[1])) {
73			c = s[1];
74			s += 2;
75			base = 16;
76			}
77			if (base == 0)
78			base = c == '0' ? 8 : 10;
79
80			cutoff = UINTMAX_MAX / (uintmax_t)base;
81			cutlim = UINTMAX_MAX % (uintmax_t)base;
82			for (acc = 0, any = 0;; c = (unsigned char) *s++) {
83			if (isdigit(c))
84			c -= '0';
85			else if (isalpha(c))
86			c -= isupper(c) ? 'A' - 10 : 'a' - 10;
87			else
88			break;
89			if (c >= base)
90			break;
91			if (any < 0)
92			continue;
93			if (acc > cutoff \|\| (acc == cutoff && c > cutlim)) {
94			any = -1;
95			acc = UINTMAX_MAX;
96			errno = ERANGE;
97			} else {
98			any = 1;
99			acc *= (uintmax_t)base;
100			acc += c;
101			}
102			}
103			if (neg && any > 0)
104			acc = -acc;
105			if (endptr != 0)
106			endptr = (char ) (any ? s - 1 : nptr);
107			return (acc);
108			}
109			DEF_STRONG(strtoumax);