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From: heins@orion.UUCP (Michael T. Heins)
Newsgroups: net.lang.c
Subject: Casting void - int question
Message-ID: <26@orion.UUCP>
Date: Mon, 13-Oct-86 12:00:39 EDT
Article-I.D.: orion.26
Posted: Mon Oct 13 12:00:39 1986
Date-Received: Fri, 17-Oct-86 20:06:22 EDT
Organization: TRW Digital Development Laboratory, Manhattan Beach, CA
Lines: 33

[]
Could someone suggest the proper way to handle the following problem?

I have a number of existing functions with compatible arguments.  Some
are declared as void, and others as int.  None of the return values are
used.  I wish to set up an array of pointers to these functions.

My problem is that the compiler complains about incompatible types, and
I can't figure out how to use casts or unions to solve the problem.

Re-declaring the functions is not an option.  I have exemplified the
situation below:

int fna() { }

void fnb() { }

int (*array[32])();
main() {
    array[0] = fna;
    array[1] = fnb; /* This won't work as-is. */
}

I have tried things like
	array[1] = (int (*)())fnb;
but this generates the message "operands of CAST have incompatible types".

Any help would be appreciated.

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