Replace solver lib?

[brenthuisman]

In the docs of lpSolveAPI I read that they suggest switching to ROI, which does have an lp_solve plugin of its own should you want to use it. But since it has issues, being able to use others would be great. Is that something you would consider?

[edwindj]

Thanks for the suggestion! ROI is indeed a suggestion to look into, so I will start a branch where the solver will be based on ROI making it easier to switch the solver.

[edwindj]

The ROI solution looks promising and quite doable, (working on it). Only bump I encounter for the moment is the inability in ROI is to add SOS constraints which is not strictly necessary, but may yield a better performance with categorical contraints.