http://eel.is/c++draft/basic.lookup.qual#1 
 

On Thu, Aug 29, 2019 at 2:20 AM Vladimir Grigoriev via Std-Discussion <std-discussion@lists.isocpp.org> wrote:

May a name of an enumerator coincide with a name of a namespace in a using declaration.

That is whether this using declaration

using N::N;

 

is valid or not and why. 

#include <iostream>

namespace N
{
enum { N = 10 };

void f()
{
std::cout << "N = " << N << '\n';
}
}

using N::N;

void f()
{
std::cout << "N = " << N << '\n';
}

int main()
{
N::f();
f();

return 0;
}




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