add "assert (n >= 4);" to prevent macOSx checker from reporting divide_by_zero possib...

diff --git a/plugin/core/gvrender_core_fig.c b/plugin/core/gvrender_core_fig.c
index f51139b43b3bca4f35bccb74514d773c1aa9e651..890ec06a5ea1557355a9b16f15ae68075fa3d4af 100644 (file)
--- a/plugin/core/gvrender_core_fig.c
+++ b/plugin/core/gvrender_core_fig.c
@@ -345,6 +345,8 @@ static void fig_bezier(GVJ_t * job, pointf * A, int n, int arrow_at_start,
     int npoints = n;
     int i;
 
+    assert (n >= 4);
+
     pointf pf, V[4];
     point p;
     int j, step;