MSM的转换表使用mpl：：vector。默认最大大小为20。您可以使用更改大小

#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
#define BOOST_MPL_LIMIT_VECTOR_SIZE 50                
#define BOOST_MPL_LIMIT_MAP_SIZE 50

以允许尺寸达到50。根据文档（https://www.boost.org/doc/libs/1_80_0/libs/msm/doc/HTML/ch05.html），可以通过添加（例如，60）mpl/vector60.hpp和mpl/map60.hpp
在boost/mpl/vector中，我找到了vector50_c.hpp和vector50.hpp文件。vector50.hpp的内容是：

#ifndef BOOST_MPL_VECTOR_VECTOR50_HPP_INCLUDED
#define BOOST_MPL_VECTOR_VECTOR50_HPP_INCLUDED

// Copyright Aleksey Gurtovoy 2000-2004
//
// 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)
//
// See http://www.boost.org/libs/mpl for documentation.

// $Id$
// $Date$
// $Revision$

#if !defined(BOOST_MPL_PREPROCESSING_MODE)
#   include <boost/mpl/vector/vector40.hpp>
#endif

#include <boost/mpl/aux_/config/use_preprocessed.hpp>

#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
    && !defined(BOOST_MPL_PREPROCESSING_MODE)

#   define BOOST_MPL_PREPROCESSED_HEADER vector50.hpp
#   include <boost/mpl/vector/aux_/include_preprocessed.hpp>

#else

#   include <boost/mpl/aux_/config/typeof.hpp>
#   include <boost/mpl/aux_/config/ctps.hpp>
#   include <boost/preprocessor/iterate.hpp>

namespace boost { namespace mpl {

#   define BOOST_PP_ITERATION_PARAMS_1 \
    (3,(41, 50, <boost/mpl/vector/aux_/numbered.hpp>))
#   include BOOST_PP_ITERATE()

}}

#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS

#endif // BOOST_MPL_VECTOR_VECTOR50_HPP_INCLUDED

1.是否需要添加文件vector60_c.hpp和vector60.hpp？（两者有什么区别？）
1.我在哪里添加它们？内部boost/mpl/vector？
1.如何修改文件？
我对编写vector60.hpp的第一个猜测是：

#ifndef BOOST_MPL_VECTOR_VECTOR60_HPP_INCLUDED
#define BOOST_MPL_VECTOR_VECTOR60_HPP_INCLUDED

// Copyright Aleksey Gurtovoy 2000-2004
//
// 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)
//
// See http://www.boost.org/libs/mpl for documentation.

// $Id$
// $Date$
// $Revision$

#if !defined(BOOST_MPL_PREPROCESSING_MODE)
#   include <boost/mpl/vector/vector50.hpp>
#endif

#include <boost/mpl/aux_/config/use_preprocessed.hpp>

#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
    && !defined(BOOST_MPL_PREPROCESSING_MODE)

#   define BOOST_MPL_PREPROCESSED_HEADER vector60.hpp
#   include <boost/mpl/vector/aux_/include_preprocessed.hpp>

#else

#   include <boost/mpl/aux_/config/typeof.hpp>
#   include <boost/mpl/aux_/config/ctps.hpp>
#   include <boost/preprocessor/iterate.hpp>

namespace boost { namespace mpl {

#   define BOOST_PP_ITERATION_PARAMS_1 \
    (3,(51, 60, <boost/mpl/vector/aux_/numbered.hpp>))
#   include BOOST_PP_ITERATE()

}}

#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS

#endif // BOOST_MPL_VECTOR_VECTOR60_HPP_INCLUDED

编辑：我尝试运行的最小示例

#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
#define BOOST_MPL_LIMIT_VECTOR_SIZE 60
#include <boost/mpl/vector.hpp>

int main() {

    typedef boost::mpl::vector<
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int,
                int
            > vector_51;

    return 0;
}

当前产生错误

/usr/include/boost/mpl/vector.hpp:36:1: fatal error: boost/mpl/vector/vector60.hpp: No such file or directory
   36 | #   include BOOST_PP_STRINGIZE(boost/mpl/vector/AUX778076_VECTOR_HEADER)

我的首选解决方案是在编译时生成代码的include之前添加一些代码。但是，让我的示例使用自编写的文件将是很好的第一步。