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From: bill@trotter.usma.edu (Bill Gunshannon)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Turbo C file size routine
Message-ID: <1005@trotter.usma.edu>
Date: Fri, 6-Nov-87 08:47:02 EST
Article-I.D.: trotter.1005
Posted: Fri Nov  6 08:47:02 1987
Date-Received: Tue, 10-Nov-87 04:07:06 EST
References: <2475@masscomp.UUCP> <32100013@bucc2>
Organization: US Military Academy, West Point, NY
Lines: 48
Summary: Turbo C filelength

In article <32100013@bucc2>, nez@bucc2.UUCP writes:
> 
> /* Written by masscomp.UUCP!alang in comp.sys.ibm.pc */
> > I'm looking for a way to determine the size of a text file from within Turbo
> > C.
> > 
> > i=0;
> > while (getc(fp) >= 0) i++;
> > 
> > Is there a faster way to do this?
> > 
> /* End of text from bucc2:comp.sys.ibm.pc */
> 
> 	How about trying something like:
EXAMPLE USING read() DELETED FOR BREVITY
> 	According to the Turbo C Reference manual, the function 'read'
> returns the number of bytes read and doesn't count ^Zs or ^Ms.
> 


Am I missing something here?   

Why not just use filelength()?

And of course if you find that too boring there is another method:

    FILE    *F0;
    long    file_length, ftell();
    int     fseek();

    fseek(F0,0L,SEEK_END);
    file_length = ftell(F0);


I guess it just depends on how hard you want to make things.  Another point
in favor of the second method is it should be portable as fseek() and ftell()
are standard routines and filelength() is not.

Hope this helps.

bill gunshannon


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