1 files changed, 60 insertions, 0 deletions
diff --git a/libcxx/test/std/containers/sequences/deque/deque.special/swap_noexcept.pass.cpp b/libcxx/test/std/containers/sequences/deque/deque.special/swap_noexcept.pass.cpp
new file mode 100644
index 00000000000..d55d719c762
--- /dev/null
+++ b/libcxx/test/std/containers/sequences/deque/deque.special/swap_noexcept.pass.cpp
@@ -0,0 +1,60 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <deque>
+
+// void swap(deque& c)
+//     noexcept(!allocator_type::propagate_on_container_swap::value ||
+//              __is_nothrow_swappable<allocator_type>::value);
+
+// This tests a conforming extension
+
+#include <deque>
+#include <cassert>
+
+#include "../../../MoveOnly.h"
+#include "test_allocator.h"
+
+template <class T>
+struct some_alloc
+{
+    typedef T value_type;
+    
+    some_alloc() {}
+    some_alloc(const some_alloc&);
+    void deallocate(void*, unsigned) {}
+
+    typedef std::true_type propagate_on_container_swap;
+};
+
+int main()
+{
+#if __has_feature(cxx_noexcept)
+    {
+        typedef std::deque<MoveOnly> C;
+        C c1, c2;
+        static_assert(noexcept(swap(c1, c2)), "");
+    }
+    {
+        typedef std::deque<MoveOnly, test_allocator<MoveOnly>> C;
+        C c1, c2;
+        static_assert(noexcept(swap(c1, c2)), "");
+    }
+    {
+        typedef std::deque<MoveOnly, other_allocator<MoveOnly>> C;
+        C c1, c2;
+        static_assert(noexcept(swap(c1, c2)), "");
+    }
+    {
+        typedef std::deque<MoveOnly, some_alloc<MoveOnly>> C;
+        C c1, c2;
+        static_assert(!noexcept(swap(c1, c2)), "");
+    }
+#endif
+}