From: Tom St Denis <stdenis AT compmore DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: file manipulation..........
Date: Thu, 11 Jan 2001 13:16:11 GMT
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In article <93ka9n$e0v1 AT imsp212 DOT netvigator DOT com>,
  "Honey LAN >_^" <honeymak AT yahoo DOT com> wrote:
> em.........i m a C student.........
> when we work with a file,
> e.g. file_ptr = fopen("filename.ext", "w")
> how C compiler deal with the env with permission?
> i mean if i don't have the correct permission of the file, in this example
> "write", can i work with that file?.........i know the value of the file_ptr
> is returned by the OS.......will the OS just ignore this operation? or
> return any error msg?....thank Q....

If the file cannot be opended the C lib should return NULL instead of a valid
file handle.

Tom


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