open_list.h

#ifndef PROBFD_ALGORITHMS_OPEN_LIST_H
#define PROBFD_ALGORITHMS_OPEN_LIST_H
 
#include "probfd/types.h"
#include "probfd/value_type.h"
 
namespace probfd::algorithms {
 
template <typename Action>
class OpenList {
public:
    virtual ~OpenList() = default;
 
    [[nodiscard]]
    virtual unsigned size() const = 0;
 
    virtual void push(StateID state_id) = 0;
 
    virtual StateID pop() = 0;
 
    virtual void clear() = 0;
 
    [[nodiscard]]
    virtual bool empty() const
    {
        return size() == 0;
    }
 
    virtual void push(StateID, Action, value_t, StateID state_id)
    {
        push(state_id);
    }
};
 
} // namespace probfd::algorithms
 
#endif // PROBFD_ALGORITHMS_OPEN_LIST_H