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