"using" kyeword in C++

[ankushnandan]

#include <iostream>

using namespace std;

class Parent{

protected:
	void Test1(){
		cout<<"I am protected in base class";
	}
	void Test2(){
		cout<<"I am Protected too in base class";
	}
};



class Child:public Parent{

public:
	using Parent::Test1;    // What will happen here
};



void main()
{
	Child obj;
	
	obj.Test1();           // Why it has accesssible, it is protected in base class
	//obj.Test2();         //Compilation Error
}

Why the above code is working for Test1() function.

[ankushnandan]

Any thing on this????

[Disch]

I guess putting the using statement in the public section of the Child class makes the function public in Child.

=P

But you seemed to figure that out on your own.... so what else do you want to know?

[ankushnandan]

Disch, dose comiler treat it as overridden function with same definition and change its scope to public

[Disch]

Sort of.

Overriding the function would result in duplicate code. This makes it public without recreating the function.

Note it would only work if you're accessing it via a Child:

Child obj
Parent* ptr = &obj;

obj.Test1();  // OK
ptr->Test1(); // ERROR -- protected 

[ankushnandan]

thanks Disch....:)