From 05e2f8665d3d25744058c2477ef59dc9022fc144 Mon Sep 17 00:00:00 2001
From: Andrew Paseltiner <apaseltiner@gmail.com>
Date: Sun, 19 Jul 2015 15:46:57 -0400
Subject: [PATCH] add test for #23491

closes #23491
---
 src/test/run-pass/issue-23491.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/test/run-pass/issue-23491.rs

diff --git a/src/test/run-pass/issue-23491.rs b/src/test/run-pass/issue-23491.rs
new file mode 100644
index 00000000000..5ec228217ed
--- /dev/null
+++ b/src/test/run-pass/issue-23491.rs
@@ -0,0 +1,17 @@
+// 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.
+
+#![feature(box_syntax)]
+
+struct Node<T: ?Sized>(T);
+
+fn main() {
+    let x: Box<Node<[isize]>> = box Node([]);
+}