/*	Copyright (c) 1984 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/

#ident	"@(#)libc-port:gen/tolower.c	1.4"
/*	3.0 SID #	1.2	*/
/*LINTLIBRARY*/
/*
 * If arg is upper-case, return the lower-case, else return the arg.
 */

int
tolower(c)
register int c;
{
	if(c >= 'A' && c <= 'Z')
		c -= 'A' - 'a';
	return(c);
}
