don't allow negative zero; ``printf("%.3f", (double)-0.00005);''

[unix-history] / usr / src / lib / libc / stdio / printf.c

/*
 * Copyright (c) 1987 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of California at 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'' without express or implied warranty.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)printf.c	5.3 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <stdio.h>

printf(fmt, args)
	char *fmt;
	int args;
{
	int len;

	len = _doprnt(fmt, &args, stdout);
	return(ferror(stdout) ? EOF : len);
}