Question: Fix my code to correctly implement a pass by reference. Should be a co

Question

Question: Fix my code to correctly implement a pass by reference. Should be a couple fixes.

Three functions are below. Don't worry about linking everything together, header/cpp files and all other small details.

________________________________________________

Rectangle::Rectangle(int x,int y,int width,int height){
_x =x;
_y =y;
_width = width;
_height = height;
}

________________________________________________

bool Rectangle::contains(Rectangle const &r2){
  
   int x0,x1,y0,y1;
   x0 = r2._x;
   y0 = r2._y;
   x1 = r2._x + r2._length;
   y1 = r2._y + r2._width;

   if(x0(this._x+this._width) || x1>(this._x+this._width) ){
   return false;
   }

   if(y0(this._y+this._length) || y1>(this._y+this._length) ){
   return false;
   }

   return true;
}

___________________________________________________

void Test_ContainsRectangle_AllInside(void){
// This test tests functionality of bool Rectangle::contains(Rectangle)
// The rectangle passed as a parameter is inside the rectangle with no shared border

   Rectangle r1(0,0,20,20);
   Rectangle r2(5,5,10,10);
   bool i = r1.contains(r2);
   TS_ASSERT_EQUALS(i, true);
  
// Tests
}

__________________________________________________

Right now my error message is below:

rectangle.cpp: In member function

Explanation / Answer

The program runs correctly and gives output as '1'.

#include <iostream>

using namespace std;
class Rectangle
{
public:
int _x,_y,_width,_height;

Rectangle(int x,int y,int width,int height);
bool contains(Rectangle const &r2);
};

Rectangle::Rectangle(int x,int y,int width,int height){
_x =x;
_y =y;
_width = width;
_height = height;
}

bool Rectangle::contains(Rectangle const &r2){

int x0,x1,y0,y1;
x0 = r2._x;
y0 = r2._y;
x1 = r2._x + r2._height;
y1 = r2._y + r2._width;

if(x0<(_x) || x1>(_x+_width) ){
return false;
}

if(y0<(_y) || y1>(_y+_height) ){
return false;
}

return true;
}

void Test_ContainsRectangle_AllInside(void){
// This test tests functionality of bool Rectangle::contains(Rectangle)
// The rectangle passed as a parameter is inside the rectangle with no shared border

Rectangle r1(0,0,20,20);
Rectangle r2(5,5,10,10);
bool i = r1.contains(r2);
// TS_ASSERT_EQUALS(i, true);
cout<<i<<endl;
// Tests
}
int main()
{
Test_ContainsRectangle_AllInside();
}

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