holy error messages batman

well everyone heres the code and I gotta tell yah this one has got me stumped

Code:

---


#include <iostream>
#include <string>   

using namespace std;


class two
{
private: float x, y;
public:
        void read()
        {
                cout<<"Enter the x cooridnate: "; cin>>x;      //enter the value for the x coord
                cout<<"Enter the y coordinate: "; cin>>y;                //enter the value for the y coord
        }

        void show()
        {
        cout<<"the x and y of point a are("<<x<<" , "<<y<<")"<<endl;  //shows the value of the x and y coord
                                                                                                       
        }

friend void show(two p)
        {
        cout<<"the x and y of point b are("<<p.x<<" , "<<p.y<<")"<<endl;
        }
friend float distance(two p)
        {
        float d=((0-p.x)(0-p.x)) + (0-p.y)(0-p.y));
        cout<<sqrt(d);
        }
       
};
void main()
{
        two a, b;//declares two objects a and b
        a.read();//read in x and y values for object a
        b.read();//read in x and y values for object b
    a.show();//show x and y values for object a
        show(b);//show x and y values for object b
        cout<<"The distance from point(0,0) to point a is" <<distance(b);
}

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well according to the info I got on friend functions this stuff should work man but I keep getting this crazy error message that says internal compiler error. Now the one question that I have what exactly am I missing here

just right off the top of me head.. i can see that you forgot to #include<cmath> whilst using the sqrt() function.

I have change some statements, now it's ok.

Code:

---

#include <iostream>
#include <string>
 
using namespace std;

class two
{
private: float x, y;
public:
  void read()
  {
    cout<<"Enter the x cooridnate: "; cin>>x;     
    cout<<"Enter the y coordinate: "; cin>>y; 
  }

  void show()
  {
  cout<<"the x and y of point a are("<<x<<" , "<<y<<")"<<endl; 
  }

friend void show(two p)
  {
  cout<<"the x and y of point b are("<<p.x<<" , "<<p.y<<")"<<endl;
  }
friend float distance(two p)
  {
  float d=((0-p.x)*(0-p.x) + (0-p.y)*(0-p.y)); //add * between )(
  return sqrt(d);    //chang cout to return
  }
 
};
int main()
{
  two a, b;    //why define two objects but output one ?             
  a.read();
  b.read();
    a.show();
  show(b);
  cout<<"The distance from point(0,0) to point a is " ;
    cout<<distance(a); 
 
    cin.ignore(); 
    cin.get();
 
  return 0;
}

---

Code:

---

#include<iostream>
#include<string>
#include<cmath>
 
using namespace std;

class two
{
private: float x, y;
public:
  void read()
  {
    cout<<"Enter the x cooridnate: "; cin>>x;     
    cout<<"Enter the y coordinate: "; cin>>y; 
  }

void show()
  {
  cout<<"the x and y of point a are("<<x<<" , "<<y<<")"<<endl; 
  }

void show(two p)
  {
  cout<<"the x and y of point b are("<<p.x<<" , "<<p.y<<")"<<endl;
  }
float distance(two p)
  {
  float d=((0-p.x)*(0-p.x) + (0-p.y)*(0-p.y)); //add * between )(
  return sqrt(d);    //chang cout to return
  }
 
};
int main()
{
  two a, b;    //why define two objects but output one ?             
  a.read();
  b.read();
  a.show();
  b.show(b);
  cout<<"The distance from point(0,0) to point a is " ;
    cout<<a.distance(a); 
 
    cin.ignore(); 
    cin.get();
 
  return 0;
}

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Quote:

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#include<cmath>

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why not include this statement, but result is correct?
so I remove this statement.

my bad.