Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 20_util / shared_ptr / observers / owner_before.cc

diff --git a/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc b/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc
new file mode 100644 (file)
index 0000000..79ede68
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc
@@ -0,0 +1,94 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2008, 2009 Free Software Foundation
+//
+// 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/>.
+
+// 20.8.13.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A
+{
+  int i;
+  virtual ~A() { }
+};
+
+struct B : A
+{
+};
+
+// 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs]
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  // test empty shared_ptrs compare equivalent
+  std::shared_ptr<A> p1;
+  std::shared_ptr<B> p2;
+  VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) );
+}
+
+
+// Construction from pointer
+void
+test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::shared_ptr<A> a0;
+
+  std::shared_ptr<A> a1(new A);
+  VERIFY( a1.owner_before(a0) || a0.owner_before(a1) );
+  VERIFY( !(a1.owner_before(a0) && a0.owner_before(a1)) );
+
+  std::shared_ptr<B> b1(new B);
+  VERIFY( a1.owner_before(b1) || b1.owner_before(a1) );
+  VERIFY( !(a1.owner_before(b1) && b1.owner_before(a1)) );
+
+  std::shared_ptr<A> a2(a1);
+  VERIFY( !a1.owner_before(a2) && !a2.owner_before(a1) );
+  a2 = b1;
+  VERIFY( !b1.owner_before(a2) && !a2.owner_before(b1) );
+
+  std::weak_ptr<A> w1(a1);
+  VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) );
+  std::weak_ptr<A> w2(a2);
+  VERIFY( !b1.owner_before(w2) && !w2.owner_before(b1) );
+}
+
+// Aliasing
+void
+test03()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::shared_ptr<A> p1(new A());
+  std::shared_ptr<int> p2(p1, &p1->i);
+  VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) );
+}
+
+int 
+main()
+{
+  test01();
+  test02();
+  test03();
+  return 0;
+}