sync with N3126

llvm-svn: 113101

1 files changed, 32 insertions, 0 deletions

diff --git a/libcxx/test/containers/container.adaptors/priority.queue/priqueue.special/swap.pass.cpp b/libcxx/test/containers/container.adaptors/priority.queue/priqueue.special/swap.pass.cpp
new file mode 100644
index 00000000000..9d7fb951916
--- /dev/null
+++ b/libcxx/test/containers/container.adaptors/priority.queue/priqueue.special/swap.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <queue>
+
+// priority_queue();
+
+// template <class T, class Container, class Compare>
+//   void swap(priority_queue<T, Container, Compare>& x,
+//             priority_queue<T, Container, Compare>& y);
+
+#include <queue>
+#include <cassert>
+
+int main()
+{
+    std::priority_queue<int> q1;
+    std::priority_queue<int> q2;
+    q1.push(1);
+    q1.push(3);
+    q1.push(2);
+    swap(q1, q2);
+    assert(q1.empty());
+    assert(q2.size() == 3);
+    assert(q2.top() == 3);
+}