LP.hpp

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#ifndef AI_TOOLBOX_LP_HEADER_FILE
#define AI_TOOLBOX_LP_HEADER_FILE
 
#include <memory>
#include <optional>
 
#include <AIToolbox/Types.hpp>
 
namespace AIToolbox {
    class LP {
        private:
            // Data concerning any specific library we use to solve LPs
            struct LP_impl;
            std::unique_ptr<LP_impl> pimpl_;
 
        public:
            enum class Constraint { LessEqual, Equal, GreaterEqual };
            LP(size_t varNumber);
 
            ~LP();
 
            Eigen::Map<Vector> row;
 
            void setObjective(size_t n, bool maximize);
 
            void setObjective(bool maximize);
 
            void pushRow(Constraint c, double value);
 
            void popRow();
 
            size_t addColumn();
 
            std::optional<Vector> solve(size_t variables, double * objective = nullptr);
 
            void resize(size_t rows);
 
            void setUnbounded(size_t n);
 
            static double getPrecision();
 
        private:
            size_t varNumber_;
            bool maximize_;
    };
}
 
#endif