SYNOPSIS
        int pointerp(mixed arg)

DESCRIPTION
        Return 1 if arg is a pointer, i.e. an array.

SEE ALSO
        bytesp(E), clonep(E), closurep(E), floatp(E), mappingp(E), objectp(E),
        intp(E), referencep(E), stringp(E), symbolp(E), structp(E)