@@ -1932,7 +1932,7 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
template<typename _Tp>
static bool
- _M_not_empty_function(const _Tp*& __fp)
+ _M_not_empty_function(_Tp* const& __fp)
{ return __fp; }
template<typename _Class, typename _Tp>
new file mode 100644
@@ -0,0 +1,31 @@
+// Copyright (C) 2013 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/>.
+
+// libstdc++/57465
+
+// { dg-options "-std=gnu++11" }
+
+#include <functional>
+#include <testsuite_hooks.h>
+
+int main()
+{
+ using F = void();
+ F* f = nullptr;
+ std::function<F> x(f);
+ VERIFY( !x );
+}