merge

Merge remote branch 'upstream/visitor' into visitortests

Conflicts:
	src/export.cc
	src/openscad.cc
	src/polyset.cc
	src/transform.cc
	tests/CMakeLists.txt
	tests/FindGLEW.cmake
	tests/csgtermtest.cc

1 files changed, 41 insertions, 0 deletions

diff --git a/testdata/scad/features/for-tests.scad b/testdata/scad/features/for-tests.scad
new file mode 100644
index 0000000..fe36789
--- /dev/null
+++ b/testdata/scad/features/for-tests.scad
@@ -0,0 +1,41 @@
+// Empty
+for();
+// No children
+for(i=2) { }
+
+// Null
+translate([-10,0,0]) for() cylinder(r=4);
+
+// Scalar
+translate([10,0,0]) for(i=3) cylinder(r=i);
+
+// Range
+for(r=[1:5]) translate([r*10-30,10,0]) cylinder(r=r);
+
+// Reverse
+for(r=[5:1]) translate([r*10-30,20,0]) cylinder(r=r);
+
+// Step
+for(r=[1:2:6]) translate([r*10-30,30,0]) difference() {cylinder(r=r, center=true); cylinder(r=r/2, h=2, center=true);}
+
+// Fractional step
+for(r=[1.5:0.2:2.5]) translate([r*10-30,30,0]) cube([1, 4*r, 2], center=true);
+
+// Negative range, negative step
+for(r=[5:-1:1]) translate([r*10-60,40,0]) cylinder(r=r);
+
+// Negative range, positive step
+for(r=[5:1:1]) translate([r*10-30,40,0]) cylinder(r=r);
+
+// Zero step
+
+for(r=[1:0:5]) translate([r*10+60,40,0]) cylinder(r=r);
+
+// Negative step
+for(r=[1:-1:5]) translate([r*10-30,50,0]) cylinder(r=r);
+
+// Illegal step value
+for(r=[1:true:5]) translate([r*10-60,50,0]) cylinder(r=r);
+
+// Vector
+for(r=[1,2,5]) translate([r*10-30,0,0]) cylinder(r=r);