Nested Functions in C++

Although C++ does not allow nested function declaration, you can simulate it using a structure with a static function:

void outer(){	static int v1 = 5;	int v2 = 5;	struct thru	{		static void inner()		{			std::cout << v1 << std::endl;			//std::cout << v2 << std::endl;		}	};	thru::inner();}

The inner() function will not have access to local variables of outer() (the line that is commented out in the code above will cause an error, for example); however, it will be able to access the local static variable v1 in outer().

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