Re: [Boost-users] [mpl] [msm] wrong number of template arguments (120, should be at least 0)

Oh great, you’ve started a modern upgrade to MSM! I was just about to do the same as I am becoming frustrated with the antiquity of MSM (non-moveable events, no variadics, difficulties with posting events back to the machine and so on). I’ll follow this with interest.

On 9 Jul 2017, at 23:37, Deniz Bahadir via Boost-users wrote:

Am 07.07.2017 um 16:57 schrieb Alessandro Marzialetti via Boost-users:

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Hello, I'm working on a msm with a big transition table (120 elements)

This probably needs a lot of RAM when compiling... That is the reason why I am currently switching from Boost.MSM to (to-be-proposed-)Boost.SML. (You can find it at: https://github.com/boost-experimental/sml)

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I already tried with #define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS then #define BOOST_MPL_LIMIT_LIST_SIZE <custom value> But I can't go over a size of 50 (including "boost/mpl/vector/vector50.hpp") Any idea on how I can make a bigger table?

You must increase the size of the pre-processed mpl::vectors. For that there exists a python-script in "libs/mpl/preprocessed". It is called "boost_mpl_preprocess.py".

Calling that script with the "--help" command should give you some hints on how to call it. You probably need to call it like this:

python boost_mpl_preprocess.py --num-elements 120

Possibly, it would be enough to only increase the size of preprocessed mpl::vector. Then you could use the additional options "--no-list", "--no-set" and "--no-map" and thereby leave the size of the preprocessed mpl::list, mpl::set and mpl::map as is.

For further background-information you might find this StackOverflow entry, and the conversation on the boost-mailing-list interesting:

https://stackoverflow.com/questions/19493630/boostmpl-how-to-generate-pre-ge...

http://boost.2283326.n4.nabble.com/MPL-Config-Can-no-longer-pre-generate-hea...

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Thanks, Alessandro http://www.boost.org/doc/libs/1_63_0/libs/mpl/doc/refmanual/cfg-no-preproces...

Hope that helps, Deniz

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