如何在C ++中重载赋值运算符？

Question

I have the following struct:

struct mystruct{
    int a;
    int b;
    int c;
}

I simply want to overload "=" to make mystruct A = mystruct B equal to:

A.a = B.a;
A.b = B.b;
A.c = B.c;

(fields assignment respectively)

How I should make it?

Answer 1

struct mystruct{
    int a;
    int b;
    int c;

    mystruct& operator=(const mystruct& other)
    {
        a = other.a;
        b = other.b;
        c = other.c;
        return *this;
    }
}

Answer 2

The automatically generated assignment operator works already as that. But assuming, this was only an example and you want to do something else, please consider:

struct mystruct {
  int a;
  int b;
  int c;
  mystruct& operator=(const mystruct& other) {
    this->a = other.a;
    this->b = other.b;
    this->c = other.c;
    return *this;
  }
};