Question

In C++, I have 3 files (Main.cpp, Point.cpp, Point.h). When Compiled and run, it produces 2 errors, in Main.cpp "cannot convert from double to point" and in Point.cpp "name followed by :: must be a class or namespace name". How do you go about fixing these errors without editing Main.cpp? Thanks in advance.

//main.cpp

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

const double PI = 3.14159265359;
const double TOL = .0000001; //allows us to do a comparison for double value equality
int main()
{

   int toTest = 0;
   //TEST AS YOU DEVELOP COMMENT OUT EVERYTHING BUT WHAT YOU HAVE IMPLEMENTED
   //AND UNCOMMENT AS YOU CREATE.
   //(you can look below to see what I make this variable to test given things)
   cout << "MUST IMPLEMENT GETTERS BEFORE TESTING \n";
   cout << "What would you like to test? \n";
   cout << "1-value constructor \n";
   cout << "2-copy constructor \n";
   cout << "3-setters test \n";
   cout << "4-translation test \n";
   cout << "5-scaling test \n";
   cout << "6-reflect over x-axis test \n";
   cout << "7-reflect over y-axis test \n";
   cout << "8-rotation \n";
   cout << "9-assignment operator \n";
   cout << "10-operator equals equals \n";
   cout << "11-cin overload \n";
   cout << "12-cout overload \n";
   cin >> toTest;

   Point a; // a should be at (0,0)
   Point b(5.0); //b should be at (5.0,0)
   /* incremental test line
   Point c(-15.3, -32.22); //c should be at (-15.3, -32.33)

   if(toTest==1)
   {
       cout<<"**Value Constructor Test: \n";
       if(abs(a.get_x())<TOL && abs(a.get_y())<TOL &&
           abs(b.get_x()-5)<TOL && abs(b.get_y())<TOL &&
           abs(-15.3-c.get_x())<TOL && abs(-32.22-c.get_y())<TOL)
       {
           cout<<" Value Constructor Works\n" <<endl;
       }
       else
       {
           cout<<" Value Constructor Failed\n"<<endl;
       }
   }
/*   Point d(c);
   if(toTest==2)
   {
       cout<<"\n**Copy Constructor Test: \n";
       if(abs(d.get_x()-c.get_x())<TOL && abs(d.get_y()-c.get_y())<TOL)
       {
           cout<<" Copy Constructor Works\n"<<endl;
       }
       else
       {
           cout<<" Copy Constructor Failed\n"<<endl;
       }
   }

   if(toTest==3)
   {
       cout<<"\n**Setters Test: \n";
       a.set_x(5.3); a.set_y(-3.2);
       if(abs(a.get_x()-5.3)<TOL && abs(a.get_y()+3.2)<TOL)
       {
           cout<<" Setters Work\n"<<endl;
       }
       else
       {
           cout<<" Setters Failed\n"<<endl;
       }
   }

       if(toTest==4)
   {
       cout<<"\n**Translation Test: \n";
       a.translate(5.3,-3.2);
       if(abs(a.get_x()-5.3)<TOL && abs(a.get_y()+3.2)<TOL)
       {
           cout<<" Translate Works\n"<<endl;
       }
       else
       {
           cout<<" Translate Failed\n"<<endl;
       }
   }

   if(toTest==5)
   {
       cout<<"\n**Scale Test: \n";
       c.scale(-3);
       if(abs(c.get_x()-45.9)<TOL && (abs(c.get_y()-96.66)<TOL))
       {
           cout<<" Scale Works\n"<<endl;
       }
       else
       {
           cout<<" Scale Failed\n"<<endl;
       }

   }

   if(toTest==6)
   {
       cout<<"\n**Reflect Over X-Axis Test: ";
       c.reflect_x();
       if(abs(c.get_y()-32.22)<TOL)
       {
           cout<<" Reflect Over X-axis Works\n"<<endl;
       }
       else
       {
           cout<<" Reflect Over X-Axis Failed\n"<<endl;
       }

   }

   if(toTest==7)
   {
       cout<<"\n**Reflect Over Y-Axis Test: ";
       c.reflect_y();
       if(abs(c.get_x()-15.3)<TOL)
       {
           cout<<" Reflect Over Y-Axis Works\n"<<endl;
       }
       else
       {
           cout<<" Reflect Over Y-Axis Failed\n"<<endl;
       }

   }

   if(toTest==8)
   {
       Point e(-1,0); //e shoule be at (-1, 0)
       cout<<"\n**Rotation of Point Test: ";
       e.rotate(PI/2);
       if(abs(e.get_x())<TOL && abs(e.get_y()+1)<TOL)
       {
           cout<<" Rotation Of PI/2 (90 deg CCW) Worked\n"<<endl;
       }
       else
       {
           cout<<" Rotation Of PI/2 (90 deg CCW) Failed\n"<<endl;
       }
   }

   if(toTest==9)
   {
       cout<<"\n**Operator equals Test: ";
       d=b;
       if((abs(d.get_x()-b.get_x())<TOL) && (abs(d.get_y()-b.get_y())<TOL))
       {
           cout<<" Operator Equals Test Passed\n"<<endl;
       }
       else
       {
           cout<<" Operator Equals Test Failed\n"<<endl;
       }

   }

   if(toTest==10)
   {
       cout<<"\n**Operator equals equals Test: ";
       Point e(-15.3, -32.22);
       if(e==c)
       {
           cout<<" Operator equals equals Test Passed \n"<<endl;
       }
       else
       {
           cout<<" Operator equals equals Test Failed \n"<<endl;
       }
   }

   if(toTest==11)
   {
       cout<<"\n**CIN Test: \ncin the values 10 and 20 to test this with (10,20): ";
       cin>>d;
       if(abs(d.get_x()-10)<TOL && abs(d.get_y()-20)<TOL)
       {
           cout<<"CIN Test Passed\n"<<endl;
       }
       else
       {
           cout<<"CIN Test Failed\n"<<endl;
       }
   }

   if(toTest==12)
   {
       cout<<"**COUT Test: coutting Points a,b,c: \n";
       cout<<a;
       cout<<b;
       cout<<c;

   }*/
}

//Point.cpp

#include "Point.h"
#include <iostream>
#include <cstdlib>

using namespace std;

double x = 0;
double y = 0;

void Point::point()
{
   x = 0;
   y = 0;
}

void Point::point(double inX)
{
   x = inX;
   y = 0;
}

void Point::point(double inX, double inY)
{
   x = inX;
   y = inY;
}

double getX()
{
   return x;
}

double getY()
{
   return y;
}

void setPoint(double a, double b)
{
  
}

//Point.h

#include <iostream>
#ifndef Point_H;

using namespace std;

class Point
{
public:
static double x;
static double y;

void point();
void point(double x);
void point(double x, double y);

double getX();
double getY();

void setPoint(double a, double b);
};

#endif

Answer 1

/*** Point.h ***/

#include <iostream>
#ifndef POINT_H
#define POINT_H

using namespace std;

class Point
{
private:
double x;
double y;
public:
Point();
Point(double x);
Point(double x, double y);
Point(const Point&p);

double get_x();
double get_y();

void set_x(double inX);
void set_y(double inY);

void setPoint(double a, double b);
};

#endif

/*** Point.cpp ***/

#include "Point.h"
#include <iostream>
#include <cstdlib>

using namespace std;

Point::Point()
{
x = 0;
y = 0;
}

Point::Point(double inX)
{
x = inX;
y = 0;
}

Point::Point(double inX, double inY)
{
x = inX;
y = inY;
}

Point::Point(const Point&p)
{
x = p.x;
y = p.y;
}
double Point::get_x()
{
return x;
}

double Point::get_y()
{
return y;
}

void Point::set_x(double inX)
{
x = inX;
}
void Point::set_y(double inY)
{
y = inY;
}
void Point::setPoint(double a, double b)
{
x = a;
y = b;
}

/*** main.cpp ***/

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

const double PI = 3.14159265359;
const double TOL = .0000001; //allows us to do a comparison for double value equality
int main()
{

int toTest = 0;
//TEST AS YOU DEVELOP COMMENT OUT EVERYTHING BUT WHAT YOU HAVE IMPLEMENTED
//AND UNCOMMENT AS YOU CREATE.
//(you can look below to see what I make this variable to test given things)
cout << "MUST IMPLEMENT GETTERS BEFORE TESTING \n";
cout << "What would you like to test? \n";
cout << "1-value constructor \n";
cout << "2-copy constructor \n";
cout << "3-setters test \n";
cout << "4-translation test \n";
cout << "5-scaling test \n";
cout << "6-reflect over x-axis test \n";
cout << "7-reflect over y-axis test \n";
cout << "8-rotation \n";
cout << "9-assignment operator \n";
cout << "10-operator equals equals \n";
cout << "11-cin overload \n";
cout << "12-cout overload \n";
cin >> toTest;

Point a; // a should be at (0,0)
Point b(5.0); //b should be at (5.0,0)
/* incremental test line
Point c(-15.3, -32.22); //c should be at (-15.3, -32.33)

if(toTest==1)
{
cout<<"**Value Constructor Test: \n";
if(abs(a.get_x())<TOL && abs(a.get_y())<TOL &&
abs(b.get_x()-5)<TOL && abs(b.get_y())<TOL &&
abs(-15.3-c.get_x())<TOL && abs(-32.22-c.get_y())<TOL)
{
cout<<" Value Constructor Works\n" <<endl;
}
else
{
cout<<" Value Constructor Failed\n"<<endl;
}
}
Point d(c);
if(toTest==2)
{
cout<<"\n**Copy Constructor Test: \n";
if(abs(d.get_x()-c.get_x())<TOL && abs(d.get_y()-c.get_y())<TOL)
{
cout<<" Copy Constructor Works\n"<<endl;
}
else
{
cout<<" Copy Constructor Failed\n"<<endl;
}
}

if(toTest==3)
{
cout<<"\n**Setters Test: \n";
a.set_x(5.3); a.set_y(-3.2);
if(abs(a.get_x()-5.3)<TOL && abs(a.get_y()+3.2)<TOL)
{
cout<<" Setters Work\n"<<endl;
}
else
{
cout<<" Setters Failed\n"<<endl;
}
}

if(toTest==4)
{
cout<<"\n**Translation Test: \n";
a.translate(5.3,-3.2);
if(abs(a.get_x()-5.3)<TOL && abs(a.get_y()+3.2)<TOL)
{
cout<<" Translate Works\n"<<endl;
}
else
{
cout<<" Translate Failed\n"<<endl;
}
}

if(toTest==5)
{
cout<<"\n**Scale Test: \n";
c.scale(-3);
if(abs(c.get_x()-45.9)<TOL && (abs(c.get_y()-96.66)<TOL))
{
cout<<" Scale Works\n"<<endl;
}
else
{
cout<<" Scale Failed\n"<<endl;
}

}

if(toTest==6)
{
cout<<"\n**Reflect Over X-Axis Test: ";
c.reflect_x();
if(abs(c.get_y()-32.22)<TOL)
{
cout<<" Reflect Over X-axis Works\n"<<endl;
}
else
{
cout<<" Reflect Over X-Axis Failed\n"<<endl;
}

}

if(toTest==7)
{
cout<<"\n**Reflect Over Y-Axis Test: ";
c.reflect_y();
if(abs(c.get_x()-15.3)<TOL)
{
cout<<" Reflect Over Y-Axis Works\n"<<endl;
}
else
{
cout<<" Reflect Over Y-Axis Failed\n"<<endl;
}

}

if(toTest==8)
{
Point e(-1,0); //e shoule be at (-1, 0)
cout<<"\n**Rotation of Point Test: ";
e.rotate(PI/2);
if(abs(e.get_x())<TOL && abs(e.get_y()+1)<TOL)
{
cout<<" Rotation Of PI/2 (90 deg CCW) Worked\n"<<endl;
}
else
{
cout<<" Rotation Of PI/2 (90 deg CCW) Failed\n"<<endl;
}
}

if(toTest==9)
{
cout<<"\n**Operator equals Test: ";
d=b;
if((abs(d.get_x()-b.get_x())<TOL) && (abs(d.get_y()-b.get_y())<TOL))
{
cout<<" Operator Equals Test Passed\n"<<endl;
}
else
{
cout<<" Operator Equals Test Failed\n"<<endl;
}

}

if(toTest==10)
{
cout<<"\n**Operator equals equals Test: ";
Point e(-15.3, -32.22);
if(e==c)
{
cout<<" Operator equals equals Test Passed \n"<<endl;
}
else
{
cout<<" Operator equals equals Test Failed \n"<<endl;
}
}

if(toTest==11)
{
cout<<"\n**CIN Test: \ncin the values 10 and 20 to test this with (10,20): ";
cin>>d;
if(abs(d.get_x()-10)<TOL && abs(d.get_y()-20)<TOL)
{
cout<<"CIN Test Passed\n"<<endl;
}
else
{
cout<<"CIN Test Failed\n"<<endl;
}
}

if(toTest==12)
{
cout<<"**COUT Test: coutting Points a,b,c: \n";
cout<<a;
cout<<b;
cout<<c;

}*/
}

I  have fixed those errors without editing Main.cpp. Whether you face any problem or need any modification then share with me in the comment section, I'll happy to help you.

Thank You.