namespace A
{
	int x;
}

namespace B
{
	char x;
}

void main()
{
#error This is a wondorful error
	/*
	x = 3; //error C2065: 'x' : undeclared identifier
	x = 'a'; //error C2065: 'x' : undeclared identifier
	*/

	A::x = 3; // good use
	B::x = 'a'; // good use
}