'With' keyword in C++

[Neolisk]

I used to write in VB for quite long and got sticked to a 'With' keyword, which helps to keep the code clean and clear. I wonder if there's a C++ equivalent of this keyword or probably another delicate way to keep order while coding. Sample:

class A
{
public:
	int a;
};
class B
{
public:
	A a;
	int b;	
};
int main()
{ 
	B ttt;
	// With ttt.a
	// a = 123;        
	// End With	
}

Thanks!