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From: dwight@micron.net (Dwight Tovey)
Newsgroups: comp.unix.bsd.misc,alt.unix.wizards,comp.unix.misc
Subject: Re: How to write end of file character into file??!
Date: 8 Apr 1996 14:12:47 GMT
Organization: Wish I had some
Lines: 43
Message-ID: <4kb6sv$399@is05.micron.net>
References: <xsvarshney-0604962038290001@newshub.csu.net>
Reply-To: dwight@micron.net
NNTP-Posting-Host: dwight.boi.micron.net
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.misc:629 alt.unix.wizards:3577 comp.unix.misc:21817
In article <xsvarshney-0604962038290001@newshub.csu.net>, xsvarshney@ccvax.fullerton.edu (S. Varshney) writes:
|>
|>
|> I have the following code to write to a file...
|>
|> Input of variable is done by:
|>
|> data_f=fopen("input", "a");
|> fprintf(data_f, "%s\n", var1);
|>
|> Now I'm trying to read this file, using fopen("input","r");
|>
|> The problem is, I can't seem to get a handle on detecting the eof char...
|> so as to be able to printf correctly. Any suggestions on how to write the
|> file so that an EOF char is written on the file, so that I can read the
|> EOF correctly?
|>
|> The machine is Unix 5.5 Thanks!
|>
|>
|> -Suvrit
|> xsvarshney@ccvax.fullerton.edu
Others have already commented about the EOF in Unix. One other thing you can do
when reading the file is use the 'feof()' to check for the EOF condition before
you do the read. Possibly something like this:
data_f = fopen( "input", "r" );
while( !feof( data_f )) {
fread(....)
.....
}
fclose( data_f );
/dwight
--
Dwight N. Tovey H&W Computer Systems, Inc.
Software Specialist III 12438 W. Bridger St. Suite 100
dwight@hwcs.com Boise, ID. 83713
or dwight@micron.net (208)377-0336
I didn't claw my way to the top of the food chain to eat vegetables!!