NAME
	functionp - test if argument is a functionpointer

SYNOPSIS
	int functionp(mixed var)


DESCRIPTION
        Returns 1 if var is found to be a functionpointer created with
        _FP(ob, func), otherwise 0.

        This function will only exist if config.h defines MUDOS_FUNCTIONP.

SEE ALSO
	efun/call_fp, macros/_FP, macros/_FUNC, macros/_OB
