Some Namespace Options

 

#include <iostream>
using namespace std;
namespace MyNameSpace {
  int i;
}
namespace MyNameSpace {
  int j;
}
int main()
{
  MyNameSpace::i = MyNameSpace::j = 10;
  
  cout << MyNameSpace::i * MyNameSpace::j << "\n";   
  
  using namespace MyNameSpace;
  cout << i * j;
  return 0;
}

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6.	Using namespace to reference variables
7.	Namespace code section
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10.	Defines and tests namespaces.

Some Namespace Options : NameSpace « Language « C++

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