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+// { dg-options "-std=gnu++0x" }
+// 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
+//
+// Copyright (C) 2005-2014 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/>.
+
+// 20.7.15 polymorphic function object wrapper
+#include <functional>
+#include <testsuite_hooks.h>
+#include <testsuite_tr1.h>
+
+using namespace __gnu_test;
+
+bool test __attribute__((unused)) = true;
+
+// Put reference_wrappers to function pointers into function<> wrappers
+void test07()
+{
+  using std::function;
+  using std::ref;
+  using std::cref;
+
+  int (*fptr)(float) = truncate_float;
+
+  function<int(float)> f1(ref(fptr));
+  VERIFY( f1 );
+  VERIFY( !!f1 );
+  VERIFY( !(f1 == 0) );
+  VERIFY( !(0 == f1) );
+  VERIFY( f1 != 0 );
+  VERIFY( 0 != f1 );
+
+  // Invocation
+  VERIFY( f1(3.1f) == 3 );
+
+  // target_type and target() functions
+  const function<int(float)>& f1c = f1;
+  VERIFY( typeid(int(*)(float)) == f1.target_type() );
+  VERIFY( f1.target<int(*)(float)>() != 0 );
+  VERIFY( f1.target<int(*)(float)>() == &fptr );
+  VERIFY( f1c.target<int(*)(float)>() != 0 );
+  VERIFY( f1c.target<int(*)(float)>() == &fptr );
+
+  function<int(float)> f2(cref(fptr));
+  VERIFY( f2 );
+  VERIFY( !!f2 );
+  VERIFY( !(f2 == 0) );
+  VERIFY( !(0 == f2) );
+  VERIFY( f2 != 0 );
+  VERIFY( 0 != f2 );
+
+  // Invocation
+  VERIFY( f2(3.1f) == 3 );
+
+  // target_type and target() functions
+  const function<int(float)>& f2c = f2;
+  VERIFY( typeid(int(*)(float)) == f2.target_type() );
+  VERIFY( f2.target<int(*)(float)>() == 0 );
+  VERIFY( f2.target<int(* const)(float)>() == &fptr );
+  VERIFY( f2c.target<int(*)(float)>() != 0 );
+  VERIFY( f2c.target<int(*)(float)>() == &fptr );
+}
+
+int main()
+{
+  test07();
+  return 0;
+}