Creating i amount of classes

ozarka30 (6)
Here is the code i am working with right now. It is going to read in a number of lines of 3 ints that will be the x, y, and radius of a circle. However the number of lines read in isn't set is there a way for me to make a counter and then have it create circle 0 the first time through then circle 1,2,3..... until EOF? If you have any ideas on how to solve this problem I would very much appreciate it. 
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string line;
	ifstream myfile;
	myfile.open("input.txt");
	if (myfile.is_open())
	{
		while (myfile.good())
		{
			getline (myfile,line);
			if(line == "Code 1")
			{
				while(!EOF)
				{
					int i=0;
					double a,b,c;
					myfile>> a;
					myfile>>b;
					myfile>>c;
					Circle2d 'i' c;
				}
		}
	}


Last edited on
pot (17)
what does your 'Circle2d' do?

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ifstream myfile;
myfile.open("input.txt");
if (myfile.good()) {
     string line;
     getline (myfile,line);
     if(line == "Code 1"){
	  int i=0;//moved here because it increment in the loop.
	  while(!myfile.eof()){
	       double a,b,c;
	       myfile>>a;
	       myfile>>b;
	       myfile>>c;
	       //I dont know the spec of Circle2d
	       //I assume void Circle2d(int i, double x, double y, double radius)
	       Circle2d(i, a, b, c);
	       ++i;
	  }
     }
}
Last edited on
bbgst (203)
A little more compact:

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getline(myfile, line);

if(line == "Code 1")
{
	int i = 0;

	while(getline(myfile, line))
	{
		double a, b, c;
		myfile >> a >> b >> c;
		Circle2d(i, a, b, c);
		++i;
	}
}
pot (17)
Thanks bbgst, method chain is powerful!

btw, is it ok to call getline before each input?
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