使用名称创建参数化构造函数对象

Question

class Point
{
private:
int x, y;
public:
Point()
{
}
// Parameterized Constructor
Point(int x1)
{
 x=x1;
}
Point(int x1, int y1)
{
    x = x1;
    y = y1;
}
int getX()
{
    return x;
}
int getY()
{
    return y;
}
};
int main()
{
   Point p(10);
   p = Point(50,100);
}

does Point(50,100) returns an object??Can Anyone explain the details about the execution in main function. for assigning p with Point(50,100) it should give an object.

Answer 1

Here Point(50,100) creates an object then calls the assignment operator of the class Point which is generated as default by the compiler and basically copies memory of righthand operand into left hand operand. After copying, it also calls the destructor for the Point(50,100) .

You can check this by adding a destructor to your function.

~Point()
{
    std::cout<<"destructor"<<x<<std::endl;
}