1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/variance/variance-use-invariant-struct-1.rs b/src/test/ui/variance/variance-use-invariant-struct-1.rs
new file mode 100644
index 000000000..d40dbceb5
--- /dev/null
+++ b/src/test/ui/variance/variance-use-invariant-struct-1.rs
@@ -0,0 +1,23 @@
+// Test various uses of structs with distint variances to make sure
+// they permit lifetimes to be approximated as expected.
+
+struct SomeStruct<T>(*mut T);
+
+fn foo<'min,'max>(v: SomeStruct<&'max ()>)
+                  -> SomeStruct<&'min ()>
+    where 'max : 'min
+{
+    v
+    //~^ ERROR lifetime may not live long enough
+}
+
+fn bar<'min,'max>(v: SomeStruct<&'min ()>)
+                  -> SomeStruct<&'max ()>
+    where 'max : 'min
+{
+    v
+    //~^ ERROR lifetime may not live long enough
+}
+
+
+fn main() { }