// TR1 functional header -*- C++ -*-

// Copyright (C) 2007, 2008, 2009 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file tr1_impl/functional
 *  This is an internal header file, included by other library headers.
 *  You should not attempt to use it directly.
 */

namespace std
{
_GLIBCXX_BEGIN_NAMESPACE_TR1

  template<typename _MemberPointer>
    class _Mem_fn;

  /**
   *  Actual implementation of _Has_result_type, which uses SFINAE to
   *  determine if the type _Tp has a publicly-accessible member type
   *  result_type.
  */
  template<typename _Tp>
    class _Has_result_type_helper : __sfinae_types
    {
      template<typename _Up>
        struct _Wrap_type
	{ };

      template<typename _Up>
        static __one __test(_Wrap_type<typename _Up::result_type>*);

      template<typename _Up>
        static __two __test(...);

    public:
      static const bool value = sizeof(__test<_Tp>(0)) == 1;
    };

  template<typename _Tp>
    struct _Has_result_type
    : integral_constant<bool,
	      _Has_result_type_helper<typename remove_cv<_Tp>::type>::value>
    { };

  /**
   *  
  */
  /// If we have found a result_type, extract it.
  template<bool _Has_result_type, typename _Functor>
    struct _Maybe_get_result_type
    { };

  template<typename _Functor>
    struct _Maybe_get_result_type<true, _Functor>
    {
      typedef typename _Functor::result_type result_type;
    };

  /**
   *  Base class for any function object that has a weak result type, as
   *  defined in 3.3/3 of TR1.
  */
  template<typename _Functor>
    struct _Weak_result_type_impl
    : _Maybe_get_result_type<_Has_result_type<_Functor>::value, _Functor>
    {
    };

  /// Retrieve the result type for a function type.
  template<typename _Res, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res(_ArgTypes...)>
    {
      typedef _Res result_type;
    };

  /// Retrieve the result type for a function reference.
  template<typename _Res, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res(&)(_ArgTypes...)>
    {
      typedef _Res result_type;
    };

  /// Retrieve the result type for a function pointer.
  template<typename _Res, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res(*)(_ArgTypes...)>
    {
      typedef _Res result_type;
    };

  /// Retrieve result type for a member function pointer. 
  template<typename _Res, typename _Class, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...)>
    {
      typedef _Res result_type;
    };

  /// Retrieve result type for a const member function pointer. 
  template<typename _Res, typename _Class, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...) const>
    {
      typedef _Res result_type;
    };

  /// Retrieve result type for a volatile member function pointer. 
  template<typename _Res, typename _Class, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...) volatile>
    {
      typedef _Res result_type;
    };

  /// Retrieve result type for a const volatile member function pointer. 
  template<typename _Res, typename _Class, typename... _ArgTypes> 
    struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...)const volatile>
    {
      typedef _Res result_type;
    };

  /**
   *  Strip top-level cv-qualifiers from the function object and let
   *  _Weak_result_type_impl perform the real work.
  */
  template<typename _Functor>
    struct _Weak_result_type
    : _Weak_result_type_impl<typename remove_cv<_Functor>::type>
    {
    };

  template<typename _Signature>
    class result_of;

  /**
   *  Actual implementation of result_of. When _Has_result_type is
   *  true, gets its result from _Weak_result_type. Otherwise, uses
   *  the function object's member template result to extract the
   *  result type.
  */
  template<bool _Has_result_type, typename _Signature>
    struct _Result_of_impl;

  // Handle member data pointers using _Mem_fn's logic
  template<typename _Res, typename _Class, typename _T1>
    struct _Result_of_impl<false, _Res _Class::*(_T1)>
    {
      typedef typename _Mem_fn<_Res _Class::*>
                ::template _Result_type<_T1>::type type;
    };

  /**
   * Determine whether we can determine a result type from @c Functor 
   * alone.
   */ 
  template<typename _Functor, typename... _ArgTypes>
    class result_of<_Functor(_ArgTypes...)>
    : public _Result_of_impl<
               _Has_result_type<_Weak_result_type<_Functor> >::value,
               _Functor(_ArgTypes...)>
    {
    };

  /// We already know the result type for @c Functor; use it.
  template<typename _Functor, typename... _ArgTypes>
    struct _Result_of_impl<true, _Functor(_ArgTypes...)>
    {
      typedef typename _Weak_result_type<_Functor>::result_type type;
    };

  /**
   * We need to compute the result type for this invocation the hard 
   * way.
   */
  template<typename _Functor, typename... _ArgTypes>
    struct _Result_of_impl<false, _Functor(_ArgTypes...)>
    {
      typedef typename _Functor
                ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Functor(_ArgTypes...)>::type type;
    };

  /**
   * It is unsafe to access ::result when there are zero arguments, so we 
   * return @c void instead.
   */
  template<typename _Functor.)>
    {
      typedef typename _Functor
         ::template result<_Fu