text: #ifndef MAP_H_
  #define MAP_H_
  
  class map {
  
  public:
  	//definition of single landmark:
  	struct single_landmark_s{
  		int id_i ;
  		float x_f;
  	};
  
  	//list of landmarks:
  	std::vector<single_landmark_s> landmark_list ;
  };
  #endif /* MAP_H_ */
  