#include <iostream>

class ExampleClass
{
const public: // A section that allows everyone to read. Only the class itself may write.
    int iterator;
public:
    ExampleClass( void ) : iterator(0) {}
    void Increment( void ) { ++iterator; } // Write: allowed within class.
};

int main(int, char**)
{
    ExampleClass example;
    example.Increment();
    std::cout << example.iterator << std::endl; // Read: Allowed everywhere.
    return 0;
}