MSMs transition table uses a mpl::vector. The default maximum size is 20. You can change the size with
#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
#define BOOST_MPL_LIMIT_VECTOR_SIZE 50
#define BOOST_MPL_LIMIT_MAP_SIZE 50
to allow a size up to 50. According to the documentation (https://www.boost.org/doc/libs/1_80_0/libs/msm/doc/HTML/ch05.html) it is possible to increase the size even further by adding (for e.g. 60) mpl/vector60.hpp and mpl/map60.hpp
In boost/mpl/vector I find the files vector50_c.hpp and vector50.hpp. The content for vector50.hpp is:
#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
- Do I need to add a file vector60_c.hpp and vector60.hpp? (What's the difference between the two?)
- Where do I add them? Inside boost/mpl/vector?
- How do I have to modify the file?
My first guess for writing the vector60.hpp would be:
#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
Edit: My minimal example that I am trying to get to run
#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;
}
produces currently the error
/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)
My preferred solution would be adding some code before the includes that generates the code at compile time. But just getting my example to work with self-written files would be a good first step.
