Thread: How to read files

Thx swoopy. I don't think I need double pointers. Don't even know what that is!

I figured it out though. Just needed to dynamically declare vertices in the loop.

And now I am trying to do a bubble sort of the data read in but it's giving me grabage values. w/o the bolded lines of code, the output is correct (unsorted of course) so is it not possible to swap structures like that?

Code:

// Sort the vertices according to the angle of the relative polar coordinates
void sortVertices(Vertex* vertices[], int nPts)
{
      Vertex temp;
      bool exchange;
      
      do
      {
            exchange = false;
            for (int counter=0; counter < nPts; counter++)
	  if (vertices[counter]->polar.theta > vertices[counter+1]->polar.theta)
  	 {
	      vertices[counter] = new Vertex;
	 
                      temp = *vertices[counter];
	      *vertices[counter] = *vertices[counter+1];
	      *vertices[counter+1] = temp;
				
	      exchange = true;		

	      cout<<vertices[counter]->polar.d<<" "<<vertices[counter]->polar.theta<<" "<<endl;
	 }
	 nPts--;
      }
      while (exchange == true);
}