From: firewind <firewind AT metroid DOT dyn DOT ml DOT org>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Checking to see if I file exists
Date: 24 Oct 1997 02:59:46 GMT
Organization: Netcom
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References: <199710210043 DOT RAA15253 AT adit DOT ap DOT net> <344F2B84 DOT 7979 AT dcs DOT gla DOT ac DOT uk>
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To: djgpp AT delorie DOT com
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Campbell Allan <allanca AT dcs DOT gla DOT ac DOT uk> wrote:
> Nate Eldredge wrote:
> > Try the very confusingly :) named function __file_exists(). If you want to
> > be portable, use access() or stat().
> > 

> What's wrong with trying to open the file as normal? I use fopen which
> returns a pointer to FILE. If the file doesn't exist or can't be
> read/written to for some reason then a NULL is returned instead of the
> pointer. ie.

> 	FILE *fp;

> 	fp=fopen("myfile.dat","br");
> 	if (fp==NULL)
> 	  {
> 	     printf("Error datafile does not exist!\n");
> 	     exit(EXIT_FAILURE);
>           }	

> You should always do this when reading files to make sure your program
> doesn't crash out without telling the user why. 

This could be misleading though... fopen() can fail for many more reasons
than simply, 'file does not exist'...

-- 
[- 				 firewind	                            -]
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