From: "Bas Hamstra" <bas DOT hamstraNOSPAM AT wxs DOT nl>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: length of file (baffling me)
Date: Sun, 15 Aug 1999 02:31:28 +0200
Organization: Planet Internet
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References: <7p3u7u$ncb$1 AT nnrp1 DOT deja DOT com> <37B5BAFA DOT 504E01BB AT unb DOT ca>
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To: djgpp AT delorie DOT com
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Endlisnis heeft geschreven in bericht <37B5BAFA DOT 504E01BB AT unb DOT ca>...
>jsc AT lds DOT co DOT uk wrote:
>
>> Hello all, this must be an easy question, but I can't seem to get it to
work.
>> All I'm trying to do is work out the length of a file. I use
>>
>> FILE *fp;
>> fp = fopen(filename, "rb");
>> printf( "File length: %i", filelength((int)fp) );
>>
>> I get -1 returned, indicating an error, but I can't see why.
>> If anyone could help, I'd really appreciate it.
>
>If you would have read the documentation on the filelength function, you
would
>have discovered that it takes an argument of a filedescriptor, and you
can't just
>cast a FILE* to an int and hope it works.  The docs clearly say to use the
fileno
>macro.
>
>printf("File length: %i", filelength(fileno(fp)));

Man, can''t you try to be a bit more friendly? Be nice! Just answer the
question and don't go "if you had done this, you would have known that".