Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

boost/fusion/tuple/detail/preprocessed/tuple20_fwd.hpp

/*=============================================================================
    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
{
    struct void_;
    template <
        typename T0 = void_ , typename T1 = void_ , typename T2 = void_ , typename T3 = void_ , typename T4 = void_ , typename T5 = void_ , typename T6 = void_ , typename T7 = void_ , typename T8 = void_ , typename T9 = void_ , typename T10 = void_ , typename T11 = void_ , typename T12 = void_ , typename T13 = void_ , typename T14 = void_ , typename T15 = void_ , typename T16 = void_ , typename T17 = void_ , typename T18 = void_ , typename T19 = void_
    >
    struct tuple;
}}