f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
142 lines
3.7 KiB
C
142 lines
3.7 KiB
C
/* $NetBSD: _wcstol.h,v 1.4 2012/06/25 22:32:44 abs Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1990, 1993
|
|
* 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.
|
|
*
|
|
* Original version ID:
|
|
* @(#)strtol.c 8.1 (Berkeley) 6/4/93
|
|
* NetBSD: wcstol.c,v 1.1 2001/09/27 16:30:36 yamt Exp
|
|
* Citrus: xpg4dl/FreeBSD/lib/libc/locale/wcstol.c,v 1.2 2001/09/21 16:11:41 yamt Exp
|
|
*/
|
|
|
|
/*
|
|
* function template for wcstol, wcstoll and wcstoimax.
|
|
*
|
|
* parameters:
|
|
* _FUNCNAME : function name
|
|
* __INT : return type
|
|
* __INT_MIN : lower limit of the return type
|
|
* __INT_MAX : upper limit of the return type
|
|
*/
|
|
|
|
__INT
|
|
_FUNCNAME(const wchar_t *nptr, wchar_t **endptr, int base)
|
|
{
|
|
const wchar_t *s;
|
|
__INT acc, cutoff;
|
|
wint_t wc;
|
|
int i;
|
|
int neg, any, cutlim;
|
|
|
|
_DIAGASSERT(nptr != NULL);
|
|
/* endptr may be NULL */
|
|
|
|
#ifdef __GNUC__
|
|
(void)&acc; (void)&cutoff;
|
|
#endif
|
|
|
|
/* check base value */
|
|
if (base && (base < 2 || base > 36)) {
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Skip white space and pick up leading +/- sign if any.
|
|
* If base is 0, allow 0x for hex and 0 for octal, else
|
|
* assume decimal; if base is already 16, allow 0x.
|
|
*/
|
|
s = nptr;
|
|
do {
|
|
wc = (wchar_t) *s++;
|
|
} while (iswspace(wc));
|
|
if (wc == L'-') {
|
|
neg = 1;
|
|
wc = *s++;
|
|
} else {
|
|
neg = 0;
|
|
if (wc == L'+')
|
|
wc = *s++;
|
|
}
|
|
if ((base == 0 || base == 16) &&
|
|
wc == L'0' && (*s == L'x' || *s == L'X')) {
|
|
wc = s[1];
|
|
s += 2;
|
|
base = 16;
|
|
}
|
|
if (base == 0)
|
|
base = wc == L'0' ? 8 : 10;
|
|
|
|
/*
|
|
* See strtol for comments as to the logic used.
|
|
*/
|
|
cutoff = neg ? __INT_MIN : __INT_MAX;
|
|
cutlim = (int)(cutoff % base);
|
|
cutoff /= base;
|
|
if (neg) {
|
|
if (cutlim > 0) {
|
|
cutlim -= base;
|
|
cutoff += 1;
|
|
}
|
|
cutlim = -cutlim;
|
|
}
|
|
for (acc = 0, any = 0;; wc = (wchar_t) *s++) {
|
|
i = __wctoint(wc);
|
|
if (i == -1)
|
|
break;
|
|
if (i >= base)
|
|
break;
|
|
if (any < 0)
|
|
continue;
|
|
if (neg) {
|
|
if (acc < cutoff || (acc == cutoff && i > cutlim)) {
|
|
any = -1;
|
|
acc = __INT_MIN;
|
|
errno = ERANGE;
|
|
} else {
|
|
any = 1;
|
|
acc *= base;
|
|
acc -= i;
|
|
}
|
|
} else {
|
|
if (acc > cutoff || (acc == cutoff && i > cutlim)) {
|
|
any = -1;
|
|
acc = __INT_MAX;
|
|
errno = ERANGE;
|
|
} else {
|
|
any = 1;
|
|
acc *= base;
|
|
acc += i;
|
|
}
|
|
}
|
|
}
|
|
if (endptr != 0)
|
|
*endptr = __UNCONST(any ? s - 1 : nptr);
|
|
return (acc);
|
|
}
|