evolution_status.h

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#if !defined(ULTRA_EVOLUTION_STATUS_H)
#define      ULTRA_EVOLUTION_STATUS_H
 
#include <functional>
 
#include "kernel/scored_individual.h"
#include "utility/misc.h"
 
namespace ultra
{

template<Individual I, Fitness F>
class evolution_status
{
public:
  using global_update_f = std::function<void (scored_individual<I, F>)>;
 
  // --- Constructor and support functions ---
  evolution_status() = default;
  explicit evolution_status(const unsigned *, const global_update_f & = {});
 
  // --- Misc ---
  [[nodiscard]] scored_individual<I, F> best() const;
  [[nodiscard]] unsigned generation() const;
  bool update_if_better(const scored_individual<I, F> &);
 
  // --- Serialization ---
  [[nodiscard]] bool load(std::istream &, const problem &);
  [[nodiscard]] bool save(std::ostream &) const;
 
private:
  scored_individual<I, F> best_ {};
 
  global_update_f update_overall_best_ {};
 
  // Non-owning pointer to the current generation.
  const unsigned *generation_ {nullptr};
};
 
#include "kernel/evolution_status.tcc"
 
}  // namespace ultra
 
#endif  // include guard