2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 #define isspace(c) ((c) == ' ' || (c) == '\t' || (c) == '\r' || (c) == '\n')
45 /* Minimum and maximum values a `signed long long int' can hold. */
47 # define LLONG_MAX 9223372036854775807LL
51 # define LLONG_MIN (-LLONG_MAX - 1LL)
53 /* Maximum value an `unsigned long long int' can hold. (Minimum is 0.) */
55 # define ULLONG_MAX 18446744073709551615ULL
59 * Convert a string to an unsigned long long integer.
61 * Assumes that the upper and lower case
62 * alphabets and digits are each contiguous.
64 unsigned long long strtoull (const char *, char **, int);
67 strtoull(const char * nptr, char ** endptr, int base)
70 unsigned long long acc;
72 unsigned long long cutoff;
76 * See strtoq for comments as to the logic used.
81 } while (isspace((unsigned char)c));
90 if ((base == 0 || base == 16) &&
91 c == '0' && (*s == 'x' || *s == 'X') &&
92 ((s[1] >= '0' && s[1] <= '9') ||
93 (s[1] >= 'A' && s[1] <= 'F') ||
94 (s[1] >= 'a' && s[1] <= 'f'))) {
100 base = c == '0' ? 8 : 10;
102 if (base < 2 || base > 36)
105 cutoff = ULLONG_MAX / base;
106 cutlim = ULLONG_MAX % base;
107 for ( ; ; c = *s++) {
108 if (c >= '0' && c <= '9')
110 else if (c >= 'A' && c <= 'Z')
112 else if (c >= 'a' && c <= 'z')
118 if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
129 SetLastError (ERROR_ARITHMETIC_OVERFLOW);
136 SetLastError (ERROR_INVALID_PARAMETER);
143 *endptr = (char *)(any ? s - 1 : nptr);