Synthetic copy constructors and copy constructors initializing __ functions

Copyconstructor.cpp:Defines the entry point for the console application.

#include "stdafx.h"

class A
{public
:
	A () {}
	~a () {}
	int v;
};

Class B
{public
:
	B () {}
	
	//b (b &b): A (B.A) {}	//copy constructor for the composite copy constructor I
	
	//b (b &b) c16/>//{
	//	a = B.A;			Copy constructors corresponding to synthetic copy constructors II
	//}
	
	~b () {}
	
	A;
};

int _tmain (int argc, _tchar* argv[])
{
	b b;
	B.A.V = 1;
	B B0 = b;//Invoke composite copy constructor return
	0;
}

Note:

//1. The composite copy constructor is the default copy constructor.

//2. The composite copy constructor is equivalent to an assignment to all member variables.

//3. Therefore, if a member's default assignment operation does not satisfy the requirement (if a linked list or contains pointers),
it is necessary to define the overloaded assignment operator for the member class to make the composite copy constructor work.

//4. Generally, for the underlying class, it is best to implement constructors, copy constructors, destructors,
and (note) overloaded assignment operators.