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// { dg-options "-std=gnu++0x" }

// Copyright (C) 2010 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/>.

// 20.8.15 polymorphic function object wrapper

#include <functional>

#include <testsuite_hooks.h>

struct Foo

{

  Foo() { }

  short operator() ( int && ) { return 1; }

  short operator() ( int && ) const { return 2; }

  short operator() ( int && ) volatile { return 3; }

  short operator() ( int && ) const volatile { return 4; }

  short func( int && ) { return 5; }

  short func_c( int && ) const { return 6; }

  short func_v( int && ) volatile { return 7; }

  short func_cv( int && ) const volatile { return 8; }

};

void test01()

{

  bool test __attribute__((unused)) = true;

  using std::function;

  using std::ref;

  Foo foo;

  Foo const foo_c;

  Foo volatile foo_v;

  Foo const volatile foo_cv;

  std::function< int ( int && ) > f1( ref(foo) );

  VERIFY( f1(0) == 1 );

  std::function< int ( int && ) > f2( ref(foo_c) );

  VERIFY( f2(0) == 2 );

  std::function< int ( int && ) > f3( ref(foo_v) );

  VERIFY( f3(0) == 3 );

  std::function< int ( int && ) > f4( ref(foo_cv) );

  VERIFY( f4(0) == 4 );

  std::function< int ( Foo &, int && ) > f5( &Foo::func ) ;

  VERIFY( f5(foo, 0) == 5 );

  std::function< int ( Foo const &, int && ) > f6( &Foo::func_c ) ;

  VERIFY( f6(foo_c, 0) == 6 );

  std::function< int ( Foo volatile &, int && ) > f7( &Foo::func_v ) ;

  VERIFY( f7(foo_v, 0) == 7 );

  std::function< int ( Foo const volatile &, int && ) > f8( &Foo::func_cv ) ;

  VERIFY( f8(foo_cv, 0) == 8 );

}

int main()

{

  test01();

  return 0;

}