How can you override the behavior of the prefix increment operation in your code?

In C++, the behavior of the prefix increment operation (e.g., ++x) can be overridden by implementing the operator++() in a class.

For prefix increment, it is common to define an operator without parameters that returns a reference to the modified object:

class Counter {
    int value;
public:
    Counter(int v) : value(v) {}
    // Prefix increment
    Counter& operator++() {
        ++value;
        return *this;
    }
    int getValue() const { return value; }
};

This operator allows using ++obj; with the expected behavior.

The difference from postfix increment is that postfix takes an int as a parameter, while prefix does not.