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Mail Archives: djgpp/1998/04/27/20:16:28

From: "John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: checking for file existence
Date: Mon, 27 Apr 1998 20:02:27 -0400
Organization: Two pounds of chaos and a pinch of salt.
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Message-ID: <35451C93.222C@cs.com>
References: <6hv7er$5l4$1 AT camel29 DOT mindspring DOT com>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Eric wrote:
> 
> Is there a way to check whether or not a file exists without actually
> opening it?
> 
> I have my fopen in a separate encapsulated function. What I want to
> accomplish is the ability to check if a user request for creating a new file
> is on a file that already exists, and if so, provide the option to overwrite
> it (which the encapsulated fopen will do if called).

Use the library function __file_exists(), which is declared in
<unistd.h>.  It's a very small, fast routine.  There is also a function
named access() which performs more sophisticated checking.

-- 
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|      John M. Aldrich       |"A competent and self-confident person|
|       aka Fighteer I       | is incapable of jealousy in anything.|
|   mailto:fighteer AT cs DOT com   | Jealousy is invariably a symptom of  |
| http://www.cs.com/fighteer | neurotic insecurity."  - Lazarus Long|
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