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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 |
Organization: | Deja.com |
Lines: | 19 |
Message-ID: | <93kbmk$v0e$1@nnrp1.deja.com> |
References: | <93ka9n$e0v1 AT imsp212 DOT netvigator DOT com> |
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To: | djgpp AT delorie DOT com |
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Reply-To: | djgpp AT delorie DOT com |
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 Sent via Deja.com http://www.deja.com/
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