itree_edge_invalid()

static int itree_edge_invalid ( const POINT2D *  pt1, const POINT2D *  pt2  )

static

Definition at line 168 of file intervaltree.c.

{
        /* zero length */
        if (pt1->x == pt2->x && pt1->y == pt2->y)
                return 1;
 
        /* nan/inf coordinates */
        if (isfinite(pt1->x) &&
            isfinite(pt1->y) &&
            isfinite(pt2->x) &&
            isfinite(pt2->y))
                return 0;
 
        return 1;
}

References POINT2D::x, and POINT2D::y.

Referenced by itree_add_pointarray().

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