From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sat, 14 Jan 2006 17:07:59 +0800
From: =?gb2312?B?tbPBorHz?= <danglb@lianchuang.com>
To: "9fans@cse.psu.edu" <9fans@cse.psu.edu>
Message-id: <0IT200ET9SC10A@lianchuang.com>
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Subject: [9fans] warning of putchar
Topicbox-Message-UUID: d6e54bc4-ead0-11e9-9d60-3106f5b1d025

/* test.c */

#include <u.h>
#include <stdio.h>

void
main()
{
	putchar('\n');
}

8c -w test.c

warning:test.c:9 result of operation not used
warning:test.c:9 result of operation not used
warning:test.c:9 result of operation not used

three repetitive warnings