How can I create a custom equal function in C++?

How can I create a custom equal function in C++?

To create a custom equal function in C++, you can define a function that compares two objects of a class.

Can you show me an example of such a function?

Sure! Here's a simple example:

class MyClass {
public:
    int value;
    bool operator==(const MyClass& other) const {
        return value == other.value;
    }
};

This overloads the == operator to compare two MyClass objects.

What if I want to compare more than one member variable?

You can include additional member variables in the comparison. For example:

bool operator==(const MyClass& other) const {
    return value == other.value && anotherMember == other.anotherMember;
}

Is there a way to implement this using templates?

Yes! You can use templates to create a generic equal function that works with different types. Here's an example:

template <typename T>
bool customEqual(const T& a, const T& b) {
    return a == b;
}