re PR libstdc++/63840 (std::function copy constructor deletes an uninitialized pointer if new fails)

	PR libstdc++/63840
	* include/std/functional (function::function(const function&)): Set
	_M_manager after operations that might throw.
	* include/tr1/functional (function::function(const function&),
	function::function(_Functor, _Useless)): Likewise.
	* testsuite/20_util/function/63840.cc: New.
	* testsuite/tr1/3_function_objects/function/63840.cc: New.

From-SVN: r218215

1 files changed, 55 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/20_util/function/63840.cc b/libstdc++-v3/testsuite/20_util/function/63840.cc
new file mode 100644
index 00000000000..cf80aa1dc11
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/function/63840.cc
@@ -0,0 +1,55 @@
+// Copyright (C) 2014 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/>.
+
+// { dg-options "-std=gnu++11" }
+
+#include <functional>
+#include <stdexcept>
+#include <testsuite_hooks.h>
+
+struct functor
+{
+  functor() = default;
+
+  functor(const functor&)
+  {
+    throw std::runtime_error("test");
+  }
+
+  functor(functor&& f) = default;
+
+  void operator()() const { }
+};
+
+
+void
+test01()
+{
+  std::function<void()> f = functor{};
+  try {
+    auto g = f;
+  } catch (const std::runtime_error& e) {
+    return;
+  }
+  VERIFY(false);
+}
+
+int
+main()
+{
+  test01();
+}