1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/consts/issue-17718-const-borrow.rs b/tests/ui/consts/issue-17718-const-borrow.rs
new file mode 100644
index 000000000..89316dbd5
--- /dev/null
+++ b/tests/ui/consts/issue-17718-const-borrow.rs
@@ -0,0 +1,14 @@
+use std::cell::UnsafeCell;
+
+const A: UnsafeCell<usize> = UnsafeCell::new(1);
+const B: &'static UnsafeCell<usize> = &A;
+//~^ ERROR: cannot refer to interior mutable
+
+struct C { a: UnsafeCell<usize> }
+const D: C = C { a: UnsafeCell::new(1) };
+const E: &'static UnsafeCell<usize> = &D.a;
+//~^ ERROR: cannot refer to interior mutable
+const F: &'static C = &D;
+//~^ ERROR: cannot refer to interior mutable
+
+fn main() {}