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From: ka@hropus.UUCP (Kenneth Almquist)
Newsgroups: comp.lang.c
Subject: Re: help with declaration
Message-ID: <1111@hropus.UUCP>
Date: Thu, 18-Jun-87 13:10:45 EDT
Article-I.D.: hropus.1111
Posted: Thu Jun 18 13:10:45 1987
Date-Received: Mon, 22-Jun-87 00:50:28 EDT
References: <8286@ut-sally.UUCP>
Organization: Bell Labs, Holmdel, NJ
Lines: 24
Keywords: function pointer

Given the code:
	int	(*func)();

	func = getmenu();
	(*func)();

Campbell wants to know how to declare getmenu.  Since we want getmenu
to return an object of the same type as func, we can simply take the
the declaration of func and replace "func" with what looks like a call
to getmenu.  This gives us:

	int	(*getmenu())();

To define getmenu, say:

	int (*getmenu())() {
		...
	}

Reading the declaration from "inside out", we see that getmenu is
a function returning a pointer to a function returning int.  Another
way to look at it is that (*getmenu())() is a C expression that
produces a result of type int.
				Kenneth Almquist