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
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30 #include <sys/cdefs.h>
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char sccsid[] = "from @(#)strtol.c 8.1 (Berkeley) 6/4/93";
34 #endif /* LIBC_SCCS and not lint */
35 __FBSDID("FreeBSD: src/lib/libc/stdlib/strtoimax.c,v 1.8 2002/09/06 11:23:59 tjr Exp ");
37 __FBSDID("$FreeBSD$");
46 * Convert a wide character string to an intmax_t integer.
49 wcstoimax(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr,
59 * See strtoimax for comments as to the logic used.
64 } while (iswspace(c));
73 if ((base == 0 || base == 16) &&
74 c == L'0' && (*s == L'x' || *s == L'X')) {
80 base = c == L'0' ? 8 : 10;
82 if (base < 2 || base > 36)
85 cutoff = neg ? (uintmax_t)-(INTMAX_MIN + INTMAX_MAX) + INTMAX_MAX
87 cutlim = cutoff % base;
95 if (c >= L'0' && c <= L'9')
97 else if (c >= L'A' && c <= L'Z')
99 else if (c >= 'a' && c <= 'z')
105 if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
114 acc = neg ? INTMAX_MIN : INTMAX_MAX;
122 *endptr = (wchar_t *)(any ? s - 1 : nptr);