我在代码中看不到错误

Question

这是我的代码

#include <iostream>
using namespace std;
#include "mykouti.h"

int main()
{
    Kouti koutiA(2.0, 3.2, 6.0);
    Kouti koutiB(2.5, 4.0, 5.0);
    Kouti koutiC;

    // Display the volume of each box
    cout << "KoutiA volume is: " << koutiA.calculateOgkos()
        << "\nKoutiB volume is: " << koutiB.calculateOgkos()
        << endl;

    koutiC = koutiA + koutiB;

    cout << "KoutiC volume is: " << koutiC.calculateOgkos() << endl;

    return 0;
}

// mykouti.cpp
#include <iostream>
#include "mykouti.h"

//constructor that initialize Box dimensions
Kouti::Kouti(double length, double breadth,
              double height)
{
    setDimensions(length, breadth, height);
}

void Kouti::setDimensions(double mikos, double platos, double ypsos)
{
    setMikos(mikos);
    setPlatos(platos);
    setYpsos(ypsos);
}

void setMikos(double mikos)
{
   length = mikos;
}

void setPlatos(double platos)
{
   breadth = platos;
}

void setYpsos(double ypsos)
{
   height = ypsos;
}

double Kouti::calculateOgkos() const
{
    return length*breadth*height;
}

Kouti::Kouti operator+(const Kouti& b)
{
    Kouti kouti;
    kouti.length = this->length + b.length;
    kouti.breadth = this->breadth + b.breadth;
    kouti.height = this->height + b.height;
    return kouti;
}

// mykouti.h -- Box class before operator overloading
#ifndef MYKOUTI_H_
#define MYKOUTI_H_

class Kouti
{
    public:
        //constructor that initialize Box dimensions
        explicit Kouti(double = 0.0, double = 0.0, double = 0.0);
        void setDimensions(double, double, double);
        void setMikos(double);        //setlength()
        void setPlatos(double);      //setwidth()
        void setYpsos(double);        //setheigth()
        double calculateOgkos() const;
        Kouti operator+(const Kouti& b);

    private:
        double length;
        double breadth;
        double height;
};
#endif // MYKOUTI_H_

我试图将代码分成3个文件。使用deitel book C ++第9版和Stephen prata C ++ Primer Plus 当我编译代码时，我得到了这些错误：

你可以帮我解决这个问题吗？感谢

Answer 1

您需要使用Kouti ::

限定您的成员函数定义

void Kouti::setMikos(double mikos)
     ^^^^^^^
void Kouti::setPlatos(double platos)
     ^^^^^^^    
void Kouti::setYpsos(double ypsos)
     ^^^^^^^

您的运营商+定义应如下所示：

Kouti Kouti::operator+(const Kouti& b)