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From: jerry@oliveb.UUCP (Jerry Aguirre)
Newsgroups: net.lang.c
Subject: Re: on1 construct
Message-ID: <216@oliveb.UUCP>
Date: Wed, 7-Nov-84 15:03:38 EST
Article-I.D.: oliveb.216
Posted: Wed Nov  7 15:03:38 1984
Date-Received: Sat, 10-Nov-84 03:28:11 EST
References: <124@cadvax>
Organization: Olivetti ATC, Cupertino, Ca
Lines: 20

How about:

#define on1(X) static char first_time_in = TRUE; if ((first_time_in) && (!(first_time_in = FALSE)))

function ()
{
    on1() {
	bla;
	bla;
	...
    };
    etc...
}

The evaluation of the && will reset the flag the first time thru.
Because the reseting is done as part of the test the braced part of
the code is not affected.

				Jerry Aguirre @ Olivetti ATC
{hplabs|fortune|idi|ihnp4|ios|tolerant|allegra|tymix}!oliveb!jerry