c++ A FastCritter moves twice as fast as a regular critter. When asked to move by n steps, it actually moves by 2 * n steps. Implement a FastCritter class derived from Critter whose move function behaves as described. Complete the following file: fastcritter_Tester.cpp #include using namespace std; #include "critter.h" /** A FastCritter moves twice as fast as a regular critter. */ class . . . { public: void move(int steps); }; . . . int main() { FastCritter speedy; speedy.move(10); cout << speedy.get_history() << endl; cout << "Expected: [move to 20]" << endl; speedy.move(-1); cout << speedy.get_history() << endl; cout << "Expected: [move to 20, move to 18]" << endl; return 0; } Use the following file: critter.h #ifndef CRITTER_H #define CRITTER_H #include #include using namespace std; /** A simulated critter. */ class Critter { public: /** Constructs a critter at position 0 with blank history. */ Critter(); /** Gets the history of this critter. @return the history */ string get_history() const; /** Adds to the history of this critter. @param event the event to add to the history */ void add_history(string event); /** Gets the position of this critter. @return the position */ int get_position() const; /** Moves this critter. @param steps the number of steps by which to move. */ void move(int steps); /** The action of this critter in one step of the simulation. */ void act(); private: int position; vector history; }; #endif

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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fastcritter_Tester.cpp

#include <iostream>
using namespace std;

#include "critter.h"

/**
A FastCritter moves twice as fast as a regular critter.
*/
class . . .
{
public:
void move(int steps);
};

. . .

int main()
{
FastCritter speedy;
speedy.move(10);
cout << speedy.get_history() << endl;
cout << "Expected: [move to 20]" << endl;
speedy.move(-1);
cout << speedy.get_history() << endl;
cout << "Expected: [move to 20, move to 18]" << endl;

return 0;
}

Use the following file:

critter.h

#ifndef CRITTER_H #define CRITTER_H #include <string> #include <vector> using namespace std; /** A simulated critter. */ class Critter { public: /** Constructs a critter at position 0 with blank history. */ Critter(); /** Gets the history of this critter. @return the history */ string get_history() const; /** Adds to the history of this critter. @param event the event to add to the history */ void add_history(string event); /** Gets the position of this critter. @return the position */ int get_position() const; /** Moves this critter. @param steps the number of steps by which to move. */ void move(int steps); /** The action of this critter in one step of the simulation. */ void act(); private: int position; vector<string> history; }; #endif

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