cmastopcriteria.h

 
#ifndef CMASTOPCRITERIA_H
#define CMASTOPCRITERIA_H
 
#include <libcmaes/cmaparameters.h>
#include <functional>
#include <map>
 
namespace libcmaes
{
 
  class CMASolutions;
 
  template <class TGenoPheno>
    using StopCriteriaFunc = std::function<int (const CMAParameters<TGenoPheno> &cmap, const CMASolutions &cmas)>;
 
  enum CMAStopCritType
  {
    CONT = 0,
    AUTOMAXITER = 7,
    TOLHISTFUN = 1, // convergence
    EQUALFUNVALS = 5, // partial success, user error
    TOLX = 2, // partial success
    TOLUPSIGMA = -13,
    STAGNATION = 6, // partial success
    CONDITIONCOV = -15, // error, user action needed
    NOEFFECTAXIS = 3, // partial success
    NOEFFECTCOOR = 4, // partial success
    MAXFEVALS = 8,
    MAXITER = 9,
    FTARGET = 10 // success
  };
 
  template <class TGenoPheno=NoBoundStrategy>
  class StopCriteria
  {
  public:
    StopCriteria(const StopCriteriaFunc<TGenoPheno> &sfunc)
      :_sfunc(sfunc)
    {}
    ~StopCriteria() {}
 
    inline bool active() const { return _active; }
  
    void set_active(const bool &a) { _active = a; }
  
    StopCriteriaFunc<TGenoPheno> _sfunc;
    bool _active = true;
  };
  
  template <class TGenoPheno=NoBoundStrategy>
  class CMAES_EXPORT CMAStopCriteria
  {
    friend class CMASolutions;
 
  public:
    CMAStopCriteria();
    ~CMAStopCriteria();
 
    int stop(const CMAParameters<TGenoPheno> &cmap, const CMASolutions &cmas) const;
 
    int set_criteria_active(const int &c, const bool &active);
  
  private:
    std::map<int,StopCriteria<TGenoPheno> > _scriteria; 
    bool _active; 
    static std::map<int,std::string> _scriterias;
  };
 
}
 
#endif