Thread: Variables

How do I decalre variables as they are needed? For instance, a user says he wants to store x numbers, how would i go about doing that?

Not sure?
New / delete are much better in this area than malloc, because you don't even have to case.
simply use:

class MyClass {
...
}

int x = GetCount();
MyClass* list = new MyClass[x];

// do what is needed...

delete [] list;

Code:

   int x;
   cout << "How many number do you want to store? ";
   cin >> x;
   int *numbers;
   numbers = new int[x];
   for (i=0; i<x; i++)
      numbers[i] = i;
   for (i=0; i<x; i++)
      printf("numbers[%d]:%d\n",i,numbers[i]);
   delete []numbers;

This bit of C is very interesting.. someone mind explaining it to me? I've always been used to the C++ shortcut.

this code is actually C++ - it uses cin, cout, new and delete.
The only thing "C" about it is printf.
lookup printf in your documentation.

what this lines mean is to print a string. the first parameter is the string format. every % indicates a parameter to be inserted to the string with it's type - %d stands for decimal integer.
So the first %d will be replaced with the first argument - i, and the second %d will be replaced with numbers[i]

HTH