/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)atol.c	5.3 (Berkeley) 07/19/88";
#endif /* LIBC_SCCS and not lint */

#include <ctype.h>

long
atol(ascii)
	register char *ascii;
{
	register long val;
	int negative = 0;

	for (; isascii(*ascii) && isspace(*ascii); ++ascii);
	if (*ascii == '+')
		++ascii;
	else if (*ascii == '-') {
		++ascii;
		negative = 1;
	}
	for (val = 0; isascii(*ascii) && isdigit(*ascii); ++ascii)
		val = val * 10 + *ascii - '0';
	return(negative ? -val : val);
}