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From: reznick@ribs.UUCP (Larry Reznick)
Newsgroups: comp.lang.c
Subject: Re: how to write () a constant?
Message-ID: <241@heel.ribs.UUCP>
Date: 9 Jan 90 16:28:46 GMT
References: <10883@attctc.Dallas.TX.US> <21689@mimsy.umd.edu>
Distribution: na
Organization: Alldata Corp., Sacramento;
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In-reply-to: chris@mimsy.umd.edu's message of 8 Jan 90 07:36:16 GMT

In article <21689@mimsy.umd.edu> chris@mimsy.umd.edu (Chris Torek) writes:
>
>	int val = 1234;
>	if (fwrite((void *)&val, sizeof(val), 1, stream)) != sizeof(val))
>		... handle error ...
>

The comparison is mistaken.  The fread() and fwrite() functions return
their 3rd parameters if there's no error.  So, the fragment should be
written as:

	if (fwrite((void *) &val, sizeof(val), 1, stream)) != 1) {
		... handle error ...
	}

----

-- 
Lawrence S. Reznick, KB6NSI	Systems Software Engineer
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