代码不输出，循环输入语句

Question

Looking to convert x,y coordinates to polar. Code is looping asking for the initial inputs for the x and y. It never outputs what the polar coordinates are.

#include <iostream>
#include <math.h>
using namespace std;

int getrec(double x[], double y[]);                             
void polar(double x, double y, double& r, double& theta);      
void showPolarCoord(double radius, double angle);              


const int SIZE = 100;
const double toDegrees = 180.0/3.1415926;
int main()
{
   double x[SIZE];                                            
   double y[SIZE];                                            
   double distance[SIZE];                                          
   double angle[SIZE];
   double x_same[SIZE];
   double y_same[SIZE];                                             

   int count = getrec(x,y);                                   

   for (int i=0; i < count; i++)
   {
      x_same[i] = x[i] + 6;
      y_same[i] = y[i] + 2;
   }
   for(int i=0; i < count; i++)
   {
      polar (x_same[i], y_same[i], distance[i], angle[i]);
   }
}
   int getrec(double x[], double y[])                           
{   int count = 0; 

    do
    {   cout << "Enter the x coordinate: ";                   
        cin >> x[count];
        cout << "Enter the y coordinate: ";                  
        cin >> y[count];
        count++;
    }
    while(count < SIZE && (x[count -1] != 0) && (y[count -1] != 0));
    return count;
}


void polar(double x, double y, double& r, double& theta)      
{                  
   r = sqrt((pow(x,2))+(pow(y,2)));    
   theta = atan(y/x) * toDegrees;                             
   return;
}

void showPolarCoord(double radius, double angle)           
{
   cout << "The polar coordinates are: " << showPolarCoord << endl;

   return;
} 

Answer 1

Issue one: In your showPolarCoord() , your cout statement is printing the address of the function. This happens when you put the name of the function, which is eventually not what you want to print.

What you want is something like this (except to put the right equation for calculating polar angles out of an angle and a radius):

void showPolarCoord(double radius, double angle)           
{
   cout << "The polar coordinates are: " << radius * angle << endl;
} 

Issue two: You need to call the function showPolarCoord() in main() to actually use its functionality. But you did not.

Issue three: This is a mess. In main() , what are you trying to achieve using these two statements?

while(count < SIZE && (x[count -1] != 0) && (y[count -1] != 0));
return count;