2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Copyright (c) 2011 The FreeBSD Foundation
9 * Portions of this software were developed by David Chisnall
10 * under sponsorship from the FreeBSD Foundation.
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13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include "xlocale_private.h"
44 * Convert a string to an unsigned long long integer.
46 * Assumes that the upper and lower case
47 * alphabets and digits are each contiguous.
50 strtoull_l(const char * __restrict nptr, char ** __restrict endptr, int base,
54 unsigned long long acc;
56 unsigned long long cutoff;
61 * See strtoq for comments as to the logic used.
66 } while (isspace_l((unsigned char)c, locale));
75 if ((base == 0 || base == 16) &&
76 c == '0' && (*s == 'x' || *s == 'X') &&
77 ((s[1] >= '0' && s[1] <= '9') ||
78 (s[1] >= 'A' && s[1] <= 'F') ||
79 (s[1] >= 'a' && s[1] <= 'f'))) {
84 if ((base == 0 || base == 2) &&
85 c == '0' && (*s == 'b' || *s == 'B') &&
86 (s[1] >= '0' && s[1] <= '1')) {
92 base = c == '0' ? 8 : 10;
94 if (base < 2 || base > 36)
97 cutoff = ULLONG_MAX / base;
98 cutlim = ULLONG_MAX % base;
100 if (c >= '0' && c <= '9')
102 else if (c >= 'A' && c <= 'Z')
104 else if (c >= 'a' && c <= 'z')
110 if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
127 *endptr = (char *)(any ? s - 1 : nptr);
131 strtoull(const char * __restrict nptr, char ** __restrict endptr, int base)
133 return strtoull_l(nptr, endptr, base, __get_locale());