Pointers to Functions

Dave Bloom dave at andromeda.UUCP
Fri Jan 10 04:46:33 AEST 1986

Here's a good(?) question. Lets say I have this:

	int a(), b();  /* defined somewhere else */
	int (*c)();    /* a pointer to a function returning int (K&R pg141) */
	c = b;
	(*c)(some arguments);

Our compiler claims c is an "illegal function", yet the following it

	int a(), b();

int (*x)();
	(*x)(some arguments);

Looks like I'm missing something. Can anyone out the lend me a hand???
What is it that's wrong in example one? How can I declare a generic pointer
to an int-function, set it equal to the address of a valid int function,
and use it instead of the function????


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