vendor/libc++/libc++-release_370-r246257

1 files changed, 61 insertions, 0 deletions

diff --git a/test/std/utilities/tuple/tuple.tuple/tuple.swap/member_swap.pass.cpp b/test/std/utilities/tuple/tuple.tuple/tuple.swap/member_swap.pass.cpp
new file mode 100644
index 0000000000000..6749f592aa308
--- /dev/null
+++ b/test/std/utilities/tuple/tuple.tuple/tuple.swap/member_swap.pass.cpp
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <tuple>
+
+// template <class... Types> class tuple;
+
+// void swap(tuple& rhs);
+
+// UNSUPPORTED: c++98, c++03
+
+#include <tuple>
+#include <cassert>
+
+#include "MoveOnly.h"
+
+int main()
+{
+    {
+        typedef std::tuple<> T;
+        T t0;
+        T t1;
+        t0.swap(t1);
+    }
+    {
+        typedef std::tuple<MoveOnly> T;
+        T t0(MoveOnly(0));
+        T t1(MoveOnly(1));
+        t0.swap(t1);
+        assert(std::get<0>(t0) == 1);
+        assert(std::get<0>(t1) == 0);
+    }
+    {
+        typedef std::tuple<MoveOnly, MoveOnly> T;
+        T t0(MoveOnly(0), MoveOnly(1));
+        T t1(MoveOnly(2), MoveOnly(3));
+        t0.swap(t1);
+        assert(std::get<0>(t0) == 2);
+        assert(std::get<1>(t0) == 3);
+        assert(std::get<0>(t1) == 0);
+        assert(std::get<1>(t1) == 1);
+    }
+    {
+        typedef std::tuple<MoveOnly, MoveOnly, MoveOnly> T;
+        T t0(MoveOnly(0), MoveOnly(1), MoveOnly(2));
+        T t1(MoveOnly(3), MoveOnly(4), MoveOnly(5));
+        t0.swap(t1);
+        assert(std::get<0>(t0) == 3);
+        assert(std::get<1>(t0) == 4);
+        assert(std::get<2>(t0) == 5);
+        assert(std::get<0>(t1) == 0);
+        assert(std::get<1>(t1) == 1);
+        assert(std::get<2>(t1) == 2);
+    }
+}