random_positive_definite.h

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#ifndef HIGH_PRECISION_PSO_FUNCTION_RANDOM_POSITIVE_DEFINITE_H_
#define HIGH_PRECISION_PSO_FUNCTION_RANDOM_POSITIVE_DEFINITE_H_

#include "function/function.h"

namespace highprecisionpso {

class RandomPositiveDefiniteSecondDerivative: public Function {
public:
    RandomPositiveDefiniteSecondDerivative(std::vector<std::string> rng_description);
    ~RandomPositiveDefiniteSecondDerivative();
    mpf_t* Eval(const std::vector<mpf_t*> & pos);
    std::string GetName();
    mpf_t* DistanceTo1DLocalOptimum(const std::vector<mpf_t*> & pos, int d);

private:
    void InitMatrixCached(const std::vector<mpf_t*> & vec);
    const std::vector<std::string> rng_description_;
    std::vector<std::vector<mpf_t*> > matrix_cached_;
    unsigned int matrix_cached_precision_;
};

} // namespace highprecisionpso

#endif /* HIGH_PRECISION_PSO_FUNCTION_RANDOM_POSITIVE_DEFINITE_H_ */