lwpointiterator_peek()

int lwpointiterator_peek	(	LWPOINTITERATOR *	s,
		POINT4D *	p
	)

Attempts to assigns the next point in the iterator to p.

Does not advance. Returns LW_SUCCESS if the assignment was successful, LW_FAILURE otherwise.

Definition at line 195 of file lwiterator.c.

References getPoint4d_p(), LWPOINTITERATOR::i, LISTNODE::item, LW_FAILURE, lwpointiterator_has_next(), and LWPOINTITERATOR::pointarrays.

Referenced by lwpointiterator_next(), and test_mixed_rw_access().

{
        if (!lwpointiterator_has_next(s))
                return LW_FAILURE;

        return getPoint4d_p(s->pointarrays->item, s->i, p);
}

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