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Re: [PROGRAMMERING] C: teste om en FILE er open.

To: sslug@sslug
Subject: Re: [PROGRAMMERING] C: teste om en FILE er open.
From: Peter Makholm <sslug@sslug>
Date: Mon, 12 Sep 2005 15:12:36 +0200
Newsgroups: sslug.programmering
Organization: hacking.dk - Doing fun stuff with open source
References: <cf994cc7050912054078da3431@mail.gmail.com>
User-agent: Gnus/5.09002 (Oort Gnus v0.20) XEmacs/21.4 (Jumbo Shrimp, linux)

Martin Møller Pedersen <sslug@sslug> writes:

> Kan det lade sig gøre at teste på en variable af type "FILE *", om den er
> lukket, åbnet ? 

Måske et hack, men prøv om fileno(var) returnerer -1 (og sætter errno
til EBADF).

-- 
 Peter Makholm     |               Vi smider blade allesammen - hele tiden
 sslug@sslug |                      som et konstant spirende efterår
 http://hacking.dk |                 Og hele tiden vokser nye frugter frem
                   |                  og vi finder nogen til at plukke dem
                   |                            -- Tilt, Perkussive popler

References:
- C: teste om en FILE er open.
  - From: Martin Møller Pedersen

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