overload_assignment.md

Overloading the Assignment Operator

The assignment operator should assign one object to the value of another. The assigned object should be returned by reference. It must be defined as a member function.

Example

struct point {
    int x, y;
    // copy assignment, user-defined
    point& operator=(const point& other) {
        this->x = other.x;
        this->y = other.y;
        return *this;
    }
    // move assignment, explicitly defaulted
    point& operator=(point&&) = default;
};

Note: the copy assignment operator can accept other by value too.

See Also

<:cppreference:875716540929015908> Copy Assignment Operator
<:cppreference:875716540929015908> Move Assignment Operator

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