1 files changed, 30 insertions, 0 deletions
diff --git a/libphobos/testsuite/libphobos.gc/attributes.d b/libphobos/testsuite/libphobos.gc/attributes.d
new file mode 100644
index 0000000..a7acd6c
--- /dev/null
+++ b/libphobos/testsuite/libphobos.gc/attributes.d
@@ -0,0 +1,30 @@
+import core.memory;
+
+// TODO: The following should work, but L10 (second assert) fails.
+version(none) void dotest(T) (T* ptr)
+{
+    GC.clrAttr(ptr, uint.max);
+    assert(GC.getAttr(ptr) == 0);
+
+    GC.setAttr(ptr, GC.BlkAttr.NO_MOVE);
+    assert(GC.getAttr(ptr) == GC.BlkAttr.NO_MOVE);
+
+    GC.clrAttr(ptr, GC.BlkAttr.NO_MOVE);
+    assert(GC.getAttr(ptr) == 0);
+    GC.clrAttr(ptr, GC.BlkAttr.NO_MOVE);
+    assert(GC.getAttr(ptr) == 0);
+}
+else void dotest(T) (T* ptr)
+{
+    // https://issues.dlang.org/show_bug.cgi?id=21484
+    GC.clrAttr(ptr, uint.max);
+    GC.setAttr(ptr, GC.BlkAttr.NO_MOVE);
+    GC.getAttr(ptr);
+}
+
+void main ()
+{
+    auto ptr = new int;
+    dotest!(const(int))(ptr);
+    dotest!(int)(ptr);
+}