/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License, Version 1.0 only

 * (the "License").  You may not use this file except in compliance

 * with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*	Copyright (c) 1988 AT&T	*/

/*	  All Rights Reserved  	*/

#include "synonyms.h"

#include <ctype.h>

#include <sys/types.h>

#include <stdlib.h>

#define	ATOI

#ifdef	ATOI

typedef int TYPE;

#define	NAME	atoi

#else

typedef long TYPE;

#define	NAME	atol

#endif

TYPE

NAME(const char *p)

{

	TYPE n;

	int c, neg = 0;

	unsigned char	*up = (unsigned char *)p;

	if (!isdigit(c = *up)) {

		while (isspace(c))

			c = *++up;

		switch (c) {

		case '-':

			neg++;

			/* FALLTHROUGH */

		case '+':

			c = *++up;

		}

		if (!isdigit(c))

			return (0);

	}

	for (n = '0' - c; isdigit(c = *++up); ) {

		n *= 10; /* two steps to avoid unnecessary overflow */

		n += '0' - c; /* accum neg to avoid surprises at MAX */

	}

	return (neg ? n : -n);

}