sul.hh

 
#pragma once
 
#include <cstdlib>
 
namespace learnta {
  class SUL {
  public:
    virtual ~SUL() = default;
    virtual void pre() = 0;
    virtual void post() = 0;
    virtual bool step(char action) = 0;
    virtual bool step(double duration) = 0;
    [[nodiscard]] virtual std::size_t count() const = 0;
  };
}