1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/unsized/unsized-struct.rs b/src/test/ui/unsized/unsized-struct.rs
new file mode 100644
index 000000000..bfa5aa0a5
--- /dev/null
+++ b/src/test/ui/unsized/unsized-struct.rs
@@ -0,0 +1,18 @@
+fn is_sized<T:Sized>() { }
+fn not_sized<T: ?Sized>() { }
+
+struct Foo<T> { data: T }
+fn foo1<T>() { not_sized::<Foo<T>>() } // Hunky dory.
+fn foo2<T: ?Sized>() { not_sized::<Foo<T>>() }
+//~^ ERROR the size for values of type
+//
+// Not OK: `T` is not sized.
+
+struct Bar<T: ?Sized> { data: T }
+fn bar1<T: ?Sized>() { not_sized::<Bar<T>>() }
+fn bar2<T: ?Sized>() { is_sized::<Bar<T>>() }
+//~^ ERROR the size for values of type
+//
+// Not OK: `Bar<T>` is not sized, but it should be.
+
+fn main() { }