在C ++中的struct中的函数标头中声明（简单）

Question

I have 3 files, 1 main.cpp, 1 Point.cpp and 1 Point.h which is needed for my homework. Problem: Ask fo two int-numbers, save in struct-object and output highest number first: main.cpp

#include <iostream>
#include "Uebung8_1.h"
using std::cout;
using std::cin;
int main(){
int z;
int r;
cout << "Enter x: " << "\n";
cin >> z;
cout << "Enter y: " << "\n";
cin >> r;
Point point;
point.x = z;
point.y = r;

if (point.simsalabim(point.x, point.y) != true){
    int h = point.y;
    point.y = point.x;
    point.x = h;
}
cout << "\n" << point.x <<"\n" << point.y;

return 0;
}

Point.cpp

struct Point{
int x;
int y;
bool simsalabim(int x, int y){
    if (x >= y){
        return true;
    }
    else{
        return false;
    }

}
};

Point.h

struct Point{ int x; int y; bool simsalabim(int x, int y);};

The code works alright without the declaration(and use) of simsalabim which should decide if x is smaller than y. I think the problem is in the header, however keep in mind that I should use a this structure of the program and cannot completley decide how it should look like. It should look somewhat like this. Can you help me get this work?

Thx in advance

Answer 1

I think Point.cpp should look more like

#include "Point.h"

bool Point::simsalabim(int x, int y){
    return x >= y;

}

Answer 2

You should change simsalabim to:

struct Point{
   int x;
   int y;
   bool simsalabim(){
      return (x >= y);
   }
};

and change the way you call it:

if (point.simsalabim() != true){
    int h = point.y;
    point.y = point.x;
    point.x = h;
}

In Point.cpp, don't include the class declaration again. Just have the member function definition.

Point.h:

struct Point{
   int x;
   int y;
   bool simsalabim();
};

Point.cc:

#include "Point.h"

bool Point::simsalabim(){
   return (x >= y);
}