【C++]运算符重载

运算符重载示例

// coordinate.hpp
class coordinate
{
public:
    int x;
    int y;
    coordinate();
    coordinate(int x0, int y0);
    //运算符重载对应的解析函数
    coordinate operator+(coordinate& other);
};

// coordinate.cpp
coordinate coordinate::operator+ (const coordinate other)
{
    //在该函数内，实现+的真正应该做的操作
    coordinate tmp;
    tmp.x = this->x + other.x;
    tmp.y = this->y + other.y;
    return tmp;
}

// main.cpp
int main(void)
{
    coordinate a(1, 2);
    coordinate b(3, 6);
    coordinate c;
    
    c = a + b;  // 合法，会调用+符号的重载函数进行操作

    return 0;
}