1 files changed, 27 insertions, 0 deletions
diff --git a/Examples/test-suite/d/virtual_poly_runme.1.d b/Examples/test-suite/d/virtual_poly_runme.1.d
new file mode 100644
index 000000000..fb2e7814d
--- /dev/null
+++ b/Examples/test-suite/d/virtual_poly_runme.1.d
@@ -0,0 +1,27 @@
+module virtual_poly_runme;
+
+import virtual_poly.NDouble;
+import virtual_poly.NInt;
+import virtual_poly.NNumber;
+
+void main() {
+  // D supports covariant (polymorphic) return types, so this should work like
+  // in C++.
+  auto d = new NDouble(3.5);
+  NDouble dc = d.copy();
+  if (d.get() != dc.get()) {
+    throw new Exception("Test 1 failed.");
+  }
+
+  auto i = new NInt(2);
+  NInt ic = i.copy();
+  if (i.get() != ic.get()) {
+    throw new Exception("Test 2 failed.");
+  }
+
+  NNumber n = d;
+  auto nd = cast(NDouble) n.copy();
+  if (nd.get() != d.get()) {
+    throw new Exception("Test 3 failed.");
+  }
+}