1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/unsafe-const-fn.rs b/src/test/ui/unsafe-const-fn.rs
new file mode 100644
index 00000000000..91e16592be4
--- /dev/null
+++ b/src/test/ui/unsafe-const-fn.rs
@@ -0,0 +1,26 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// A quick test of 'unsafe const fn' functionality
+
+#![feature(const_fn)]
+
+const unsafe fn dummy(v: u32) -> u32 {
+    !v
+}
+
+const VAL: u32 = dummy(0xFFFF);
+//~^ ERROR E0133
+//~| NOTE call to unsafe function
+
+fn main() {
+    assert_eq!(VAL, 0xFFFF0000);
+}
+