From e20a7c261a9671d05d1cd4cea7334f2051123dfa Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Sun, 8 Jan 2012 13:27:31 +0100
Subject: Added test model causing a minkowski assert with a subsequent corrupt
 polyhedron


diff --git a/testdata/scad/bugs/minkowski-crash.scad b/testdata/scad/bugs/minkowski-crash.scad
new file mode 100644
index 0000000..46419ba
--- /dev/null
+++ b/testdata/scad/bugs/minkowski-crash.scad
@@ -0,0 +1,26 @@
+/*
+  Originally reported by nop head 20120107:
+  This causes a CGAL assertion in minkowski on some platforms and CGAL versions:
+  o CGAL-3.6, 3.8 Linux
+  o Windows (OpenSCAD-2011.12 binaries)
+
+  The problem is that minkowski leaves the target polyhedron in a corrupt state
+  causing a crash. This is worked around in CGALEvaluator::process().
+  
+  CGAL-3.9 appears to just process forever.
+*/
+$fn = 30;
+minkowski() {
+	union() {
+		cube([10, 10, 10], center=true);
+
+		cylinder(r=2, h=15, center=true);
+
+		rotate([90, 0, 0])
+			cylinder(r=2, h=15, center=true);
+
+		rotate([0, 90, 0])
+			cylinder(r=2, h=15, center=true);
+	}
+	sphere(3);
+}
-- 
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