1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/compile-fail/borrowck-while.rs b/src/test/compile-fail/borrowck-while.rs
new file mode 100644
index 00000000000..b904fd53d72
--- /dev/null
+++ b/src/test/compile-fail/borrowck-while.rs
@@ -0,0 +1,17 @@
+// Copyright 2012 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.
+
+fn f() -> int {
+    let mut x: int;
+    while 1 == 1 { x = 10; }
+    return x; //~ ERROR use of possibly uninitialized variable: `x`
+}
+
+fn main() { f(); }