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This video tutorial explains about the nested namespaces in c++ programming.

You are gonna learn how to declare a namespace in a file, how the namespace in different files, how to nest the namespaces, how to access the members of  a namespace when it is nested  and some other information in detail with example.

source code for this tutorial

#include <iostream>

using namespace std;

namespace one{

int i;
namespace two{
int j;
}
}

int main()
{
one :: two :: j = 10;
cout << one :: two :: j ;
return 0;
}