C++学习笔记 13 操作符

#include <iostream>

class Vector2 {
public:
    float x, y;
public:
    Vector2(float x, float y): x(x), y(y) {}

    Vector2 Add(const Vector2& other) {
        //return *this + other;
        return operator+(other);
    }

    Vector2 operator+(const Vector2& other) {
        return Vector2(x + other.x, y + other.y);
    }

    bool operator==(const Vector2& other) {
        return x == other.x && y == other.y;
    }
    bool operator!=(const Vector2& other) {
        //return !operator==(other);
        return !(*this == other);
    }
};

//类似Java的toString
//重载 <<
std::ostream& operator<<(std::ostream& stream, const Vector2& other) {
    stream << other.x << " | " << other.y;
    return stream;
}

void testOperator() {
    Vector2 a(10.0f, 20.0f);
    Vector2 b(15.0f, 25.0f);
    Vector2 c = a + b;
    std::cout << c << std::endl;
}

int main() {
    testOperator();
    std::cin.get();
}