Date: Sun, 24 Oct 1999 13:55:02 +0200
From: Marc Lehmann <pcg AT opengroup DOT org>
To: pgcc AT delorie DOT com
Subject: Re: non constant initializers
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In-Reply-To: <Pine.LNX.4.10.9910232145130.3560-100000@Cordes.Phys.Dal.Ca>; from Peter Cordes on Sat, Oct 23, 1999 at 10:02:40PM -0300
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On Sat, Oct 23, 1999 at 10:02:40PM -0300, Peter Cordes <peter AT Cordes DOT Phys DOT Dal DOT Ca> wrote:
>  Since C doesn't do it, what is a good way to have a
> static FILE *errfile;
> in a module of a bigger program?

There isn't (in C). with gnu c you could use constructors.

> Is there a solutions which doesn't
> require an initialization routine have to be called from main() to init it
> (if none is otherwise required)?  One solution is to have static FILE
> *errfile = NULL and check for null on entry to every function which uses
> it.  If null, then set it to stderr.  This is anoying, though.  At least

This is a bit less annoying (requiring fewer source changes):
#define errfile (errfile?errfile:stderr)

> overhead is not a big concern, since this is just for error logging.

Yeah, C does have some problems with modularization. In the old times,
however, nobody had a problem with calling 555+ initialization routines..

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