OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [libiberty/] [strtoul.c] - Diff between revs 834 and 842

Go to most recent revision | Only display areas with differences | Details | Blame | View Log

Rev 834 Rev 842
/*
/*
 * Copyright (c) 1990 Regents of the University of California.
 * Copyright (c) 1990 Regents of the University of California.
 * All rights reserved.
 * All rights reserved.
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * modification, are permitted provided that the following conditions
 * are met:
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *    documentation and/or other materials provided with the distribution.
 * 3. [rescinded 22 July 1999]
 * 3. [rescinded 22 July 1999]
 * 4. Neither the name of the University nor the names of its contributors
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *    without specific prior written permission.
 *
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * 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
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * SUCH DAMAGE.
 */
 */
 
 
#ifdef HAVE_CONFIG_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#include "config.h"
#endif
#endif
#ifdef HAVE_LIMITS_H
#ifdef HAVE_LIMITS_H
#include <limits.h>
#include <limits.h>
#endif
#endif
#ifdef HAVE_SYS_PARAM_H
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#include <sys/param.h>
#endif
#endif
#include <errno.h>
#include <errno.h>
#ifdef NEED_DECLARATION_ERRNO
#ifdef NEED_DECLARATION_ERRNO
extern int errno;
extern int errno;
#endif
#endif
#if 0
#if 0
#include <stdlib.h>
#include <stdlib.h>
#endif
#endif
#include "ansidecl.h"
#include "ansidecl.h"
#include "safe-ctype.h"
#include "safe-ctype.h"
 
 
#ifndef ULONG_MAX
#ifndef ULONG_MAX
#define ULONG_MAX       ((unsigned long)(~0L))          /* 0xFFFFFFFF */
#define ULONG_MAX       ((unsigned long)(~0L))          /* 0xFFFFFFFF */
#endif
#endif
 
 
/*
/*
 * Convert a string to an unsigned long integer.
 * Convert a string to an unsigned long integer.
 *
 *
 * Ignores `locale' stuff.  Assumes that the upper and lower case
 * Ignores `locale' stuff.  Assumes that the upper and lower case
 * alphabets and digits are each contiguous.
 * alphabets and digits are each contiguous.
 */
 */
unsigned long
unsigned long
strtoul(const char *nptr, char **endptr, register int base)
strtoul(const char *nptr, char **endptr, register int base)
{
{
        register const char *s = nptr;
        register const char *s = nptr;
        register unsigned long acc;
        register unsigned long acc;
        register int c;
        register int c;
        register unsigned long cutoff;
        register unsigned long cutoff;
        register int neg = 0, any, cutlim;
        register int neg = 0, any, cutlim;
 
 
        /*
        /*
         * See strtol for comments as to the logic used.
         * See strtol for comments as to the logic used.
         */
         */
        do {
        do {
                c = *s++;
                c = *s++;
        } while (ISSPACE(c));
        } while (ISSPACE(c));
        if (c == '-') {
        if (c == '-') {
                neg = 1;
                neg = 1;
                c = *s++;
                c = *s++;
        } else if (c == '+')
        } else if (c == '+')
                c = *s++;
                c = *s++;
        if ((base == 0 || base == 16) &&
        if ((base == 0 || base == 16) &&
            c == '0' && (*s == 'x' || *s == 'X')) {
            c == '0' && (*s == 'x' || *s == 'X')) {
                c = s[1];
                c = s[1];
                s += 2;
                s += 2;
                base = 16;
                base = 16;
        }
        }
        if (base == 0)
        if (base == 0)
                base = c == '0' ? 8 : 10;
                base = c == '0' ? 8 : 10;
        cutoff = (unsigned long)ULONG_MAX / (unsigned long)base;
        cutoff = (unsigned long)ULONG_MAX / (unsigned long)base;
        cutlim = (unsigned long)ULONG_MAX % (unsigned long)base;
        cutlim = (unsigned long)ULONG_MAX % (unsigned long)base;
        for (acc = 0, any = 0;; c = *s++) {
        for (acc = 0, any = 0;; c = *s++) {
                if (ISDIGIT(c))
                if (ISDIGIT(c))
                        c -= '0';
                        c -= '0';
                else if (ISALPHA(c))
                else if (ISALPHA(c))
                        c -= ISUPPER(c) ? 'A' - 10 : 'a' - 10;
                        c -= ISUPPER(c) ? 'A' - 10 : 'a' - 10;
                else
                else
                        break;
                        break;
                if (c >= base)
                if (c >= base)
                        break;
                        break;
                if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
                if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
                        any = -1;
                        any = -1;
                else {
                else {
                        any = 1;
                        any = 1;
                        acc *= base;
                        acc *= base;
                        acc += c;
                        acc += c;
                }
                }
        }
        }
        if (any < 0) {
        if (any < 0) {
                acc = ULONG_MAX;
                acc = ULONG_MAX;
                errno = ERANGE;
                errno = ERANGE;
        } else if (neg)
        } else if (neg)
                acc = -acc;
                acc = -acc;
        if (endptr != 0)
        if (endptr != 0)
                *endptr = (char *) (any ? s - 1 : nptr);
                *endptr = (char *) (any ? s - 1 : nptr);
        return (acc);
        return (acc);
}
}
 
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.