noexcept for <queue>.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132650 91177308-0d34-0410-b5e6-96231b3b80d8

test/containers/container.adaptors/queue/queue.special/swap_noexcept.pass.cpp

@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <queue>
+
+// void swap(queue& c)
+//     noexcept(__is_nothrow_swappable<container_type>::value);
+
+// This tests a conforming extension
+
+#include <queue>
+#include <cassert>
+
+#include "../../../MoveOnly.h"
+
+int main()
+{
+#if __has_feature(cxx_noexcept)
+    {
+        typedef std::queue<MoveOnly> C;
+        C c1, c2;
+        static_assert(noexcept(swap(c1, c2)), "");
+    }
+#endif
+}