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From: edw@ius2.cs.cmu.edu (Eddie Wyatt)
Newsgroups: comp.lang.c
Subject: Re: help with declaration
Message-ID: <1206@ius2.cs.cmu.edu>
Date: Wed, 17-Jun-87 19:46:15 EDT
Article-I.D.: ius2.1206
Posted: Wed Jun 17 19:46:15 1987
Date-Received: Tue, 23-Jun-87 01:02:55 EDT
References: <8286@ut-sally.UUCP>
Organization: Carnegie-Mellon University, CS/RI
Lines: 40
Keywords: function pointer

In article <8286@ut-sally.UUCP>, atc@ut-sally.UUCP (Alvin T. Campbell III) writes:
> 
> 	I have a question for all you C wizards out there. I want to write 
> a function which returns a pointer to another function. I checked Kernighan
> & Ritchie and Harbison & Steele, but found no solution.
> 
> 				A. T. Campbell
> 				University of Texas at Austin
> 				Computer Graphics Lab
> 				atc@sally.CS.UTEXAS.EDU

Syntax is :

		<type> ( * <function_name> ( <parameter_list> ) ) ( )

Example definition for a function that returns a pointer to a function that
returns an int :

int tt();

int (*foobar(x))()
    int x;
    {
    printf("x = %d\n",x);
    return(tt);
    }

int tt() { printf("Hello world\n"); return(1); }

main()
    {
    int (*func)();

    func = foobar(3);
    printf("func returns %d\n",func());
    }
-- 
					Eddie Wyatt

e-mail: edw@ius2.cs.cmu.edu