C ++错误C2228

Question

I'll admit I'm not sure of what I'm doing here, so I am doing a lot of copying sample code from my textbook and replacing with info for my own program... but can tell me what is causing this error?

Car.cpp

// Implementation file for the Car class
#include "Car.h"

// This constructor accepts arguments for the car's year 
// and make. The speed member variable is assigned 0.
Car::Car(int carYearModel, string carMake)
{
    yearModel = carYearModel;
    make = carMake;
    speed = 0;
}

// Mutator function for the car year
void Car::setYearModel(int carYearModel)
{
        carYearModel = yearModel;
}

// Mutator function for the car make
void Car::setMake(string carMake)
{
    carMake = make;
}

Car.h

// Specification file for the Car class
#ifndef CAR_H
#define CAR_H
#include <string>
using namespace std;

class Car
{
private:
    int yearModel; // Car year model
    string make;   // Car make
    int speed;     // Car speed

public:
    Car(int, string); // Constructor

    // Mutators
    void setYearModel(int);
    void setMake(string);

};

#endif 

main.cpp

#include <iostream>
#include <iomanip>
#include <string>
#include "Car.h"
using namespace std;

int main()
{
    // Create car object
    Car honda(int yearModel, string make);

    // Use mutator functions to update honda object

    honda.setYearModel(2005);
    honda.setMake("Accord");


    return 0;
}

These are the errors I'm getting:

error C2228: left of '.setYearModel' must have class/struct/union

error C2228: left of '.setMake' must have class/struct/union

Answer 1

When you say Car honda(int yearModel, string make); , you're declaring a function named honda that takes an int and a string and returns a Car. To create a Car variable named honda, you need to call the constructor with actual values:

Car honda(2005, "Accord");