1 files changed, 111 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/tuple/swap.cc b/libstdc++-v3/testsuite/20_util/tuple/swap.cc
new file mode 100644
index 000000000..613e9c2ff
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/tuple/swap.cc
@@ -0,0 +1,111 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+// NOTE: This makes use of the fact that we know how moveable
+// is implemented on tuple.  If the implementation changed
+// this test may begin to fail.
+
+#include <tuple>
+#include <utility>
+#include <testsuite_hooks.h>
+
+struct MoveOnly
+{
+  explicit MoveOnly (int j) : i(j) { }
+
+  MoveOnly (MoveOnly&& m) : i(m.i) { }
+
+  MoveOnly& operator=(MoveOnly&& m)
+  { i = m.i; return *this; }
+
+  MoveOnly(MoveOnly const&) = delete;
+  MoveOnly& operator=(MoveOnly const&) = delete;
+
+  bool operator==(MoveOnly const& m)
+  { return i == m.i; }
+
+  void swap(MoveOnly& m)
+  { std::swap(m.i, i); }
+
+  int i;
+};
+
+void swap(MoveOnly& m1, MoveOnly& m2)
+{ m1.swap(m2); }
+
+MoveOnly
+make_move_only (int i)
+{ return MoveOnly(i); }
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::tuple<> t1, t2;
+  std::swap(t1, t2);
+
+  VERIFY( t1 == t2 );
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::tuple<int> t1(1), t2(2);
+  std::swap(t1, t2);
+  
+  VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 );
+}
+
+void test03()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::tuple<int, float> t1(1, 1.0f), t2(2, 2.0f);
+  std::swap(t1, t2);
+
+  VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 );
+  VERIFY( std::get<1>(t1) == 2.0f && std::get<1>(t2) == 1.0f );
+}
+
+void test04()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::tuple<int, float, MoveOnly> 
+    t1(1, 1.0f, make_move_only(1)), 
+    t2(2, 2.0f, make_move_only(2));
+
+  std::swap(t1, t2);
+
+  VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 );
+  VERIFY( std::get<1>(t1) == 2.0f && std::get<1>(t2) == 1.0f );
+  VERIFY( std::get<2>(t1) == make_move_only(2) 
+	  && std::get<2>(t2) == make_move_only(1) );
+}
+
+int main()
+{
+  test01();
+  test02();
+  test03();
+  test04();
+  return 0;
+}