text: /*=============================================================================
      Copyright (c) 2001-2011 Joel de Guzman
  
      Distributed under the Boost Software License, Version 1.0. (See accompanying
      file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  
      This is an auto-generated file. Do not edit!
  ==============================================================================*/
  namespace boost {
  namespace fusion {
  namespace detail {
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43, typename T44,
            typename T45, typename T46, typename T47, typename T48, typename T49>
  struct vector_n_chooser {
    typedef vector50<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43, T44, T45, T46, T47, T48, T49>
        type;
  };
  template <>
  struct vector_n_chooser<
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_> {
    typedef vector0<> type;
  };
  template <typename T0>
  struct vector_n_chooser<
      T0, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_> {
    typedef vector1<T0> type;
  };
  template <typename T0, typename T1>
  struct vector_n_chooser<
      T0, T1, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_> {
    typedef vector2<T0, T1> type;
  };
  template <typename T0, typename T1, typename T2>
  struct vector_n_chooser<
      T0, T1, T2, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_> {
    typedef vector3<T0, T1, T2> type;
  };
  template <typename T0, typename T1, typename T2, typename T3>
  struct vector_n_chooser<
      T0, T1, T2, T3, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_> {
    typedef vector4<T0, T1, T2, T3> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_> {
    typedef vector5<T0, T1, T2, T3, T4> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_> {
    typedef vector6<T0, T1, T2, T3, T4, T5> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_> {
    typedef vector7<T0, T1, T2, T3, T4, T5, T6> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_> {
    typedef vector8<T0, T1, T2, T3, T4, T5, T6, T7> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector9<T0, T1, T2, T3, T4, T5, T6, T7, T8> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector10<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector11<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector12<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector13<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector14<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector15<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_> {
    typedef vector16<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_> {
    typedef vector17<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_> {
    typedef vector18<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_> {
    typedef vector19<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_> {
    typedef vector20<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector21<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector22<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector23<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector24<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector25<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector26<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector27<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector28<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector29<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_, void_> {
    typedef vector30<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, void_,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_> {
    typedef vector31<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31,
      void_, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_> {
    typedef vector32<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32>
  struct vector_n_chooser<
      T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16,
      T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31,
      T32, void_, void_, void_, void_, void_, void_, void_, void_, void_, void_,
      void_, void_, void_, void_, void_, void_, void_> {
    typedef vector33<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, void_,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_> {
    typedef vector34<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          void_, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_> {
    typedef vector35<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, void_, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_> {
    typedef vector36<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_, void_> {
    typedef vector37<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, void_, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector38<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, void_, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector39<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, void_, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector40<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, void_, void_, void_,
                          void_, void_, void_, void_, void_, void_> {
    typedef vector41<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, void_, void_, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector42<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, void_, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector43<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, T43, void_,
                          void_, void_, void_, void_, void_> {
    typedef vector44<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43, typename T44>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, void_,
                          void_, void_, void_, void_> {
    typedef vector45<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43, T44>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43, typename T44,
            typename T45>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45,
                          void_, void_, void_, void_> {
    typedef vector46<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43, T44, T45>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43, typename T44,
            typename T45, typename T46>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45,
                          T46, void_, void_, void_> {
    typedef vector47<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43, T44, T45, T46>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43, typename T44,
            typename T45, typename T46, typename T47>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45,
                          T46, T47, void_, void_> {
    typedef vector48<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43, T44, T45, T46, T47>
        type;
  };
  template <typename T0, typename T1, typename T2, typename T3, typename T4,
            typename T5, typename T6, typename T7, typename T8, typename T9,
            typename T10, typename T11, typename T12, typename T13, typename T14,
            typename T15, typename T16, typename T17, typename T18, typename T19,
            typename T20, typename T21, typename T22, typename T23, typename T24,
            typename T25, typename T26, typename T27, typename T28, typename T29,
            typename T30, typename T31, typename T32, typename T33, typename T34,
            typename T35, typename T36, typename T37, typename T38, typename T39,
            typename T40, typename T41, typename T42, typename T43, typename T44,
            typename T45, typename T46, typename T47, typename T48>
  struct vector_n_chooser<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
                          T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23,
                          T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34,
                          T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45,
                          T46, T47, T48, void_> {
    typedef vector49<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
                     T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25,
                     T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37,
                     T38, T39, T40, T41, T42, T43, T44, T45, T46, T47, T48>
        type;
  };
  } // namespace detail
  } // namespace fusion
  } // namespace boost
  