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
30 #include <sys/cdefs.h>
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char sccsid[] = "@(#)strtoq.c 8.1 (Berkeley) 6/4/93";
34 #endif /* LIBC_SCCS and not lint */
35 __FBSDID("FreeBSD: src/lib/libc/stdlib/strtoll.c,v 1.19 2002/09/06 11:23:59 tjr Exp ");
37 __FBSDID("$FreeBSD$");
46 * Convert a wide character string to a long long integer.
49 wcstoll(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr, int base)
52 unsigned long long acc;
54 unsigned long long cutoff;
58 * See strtoll for comments as to the logic used.
63 } while (iswspace(c));
72 if ((base == 0 || base == 16) &&
73 c == L'0' && (*s == L'x' || *s == L'X')) {
79 base = c == L'0' ? 8 : 10;
81 if (base < 2 || base > 36)
84 cutoff = neg ? (unsigned long long)-(LLONG_MIN + LLONG_MAX) + LLONG_MAX
86 cutlim = cutoff % base;
94 if (c >= L'0' && c <= L'9')
96 else if (c >= L'A' && c <= L'Z')
98 else if (c >= L'a' && c <= L'z')
104 if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
113 acc = neg ? LLONG_MIN : LLONG_MAX;
121 *endptr = (wchar_t *)(any ? s - 1 : nptr);