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Path: utzoo!linus!decvax!harpo!eagle!mhuxl!houxm!ihnp4!ihuxl!dcn
From: dcn@ihuxl.UUCP
Newsgroups: net.sources
Subject: Aztec C cource - stoi.c
Message-ID: <730@ihuxl.UUCP>
Date: Fri, 11-Nov-83 17:31:32 EST
Article-I.D.: ihuxl.730
Posted: Fri Nov 11 17:31:32 1983
Date-Received: Sun, 13-Nov-83 07:58:20 EST
Organization: AT&T Bell Labs, Naperville, Il
Lines: 24


/* stoi - convert string to integer (checks sign) */

#include "stdio.h"

stoi(s)
char *s ;
{
	int n, sign ;

	while( *s == BLANK || *s == NL || *s == TAB )
		s++ ;

	sign = 1 ;
	if( *s == '+' )
		s++ ;
	else if( *s == '-' ) {
		sign = -1 ;
		s++ ;
	}
	for( n=0 ; *s >= '0' && *s <= '9' ; s++ )
		n = 10 * n + *s - '0' ;
	return( sign * n ) ;
}