extern “C” linkage inside C++ namespace?

Question

namespace someNameSpace {
    extern \"C\" void doSomething()
        {
             someOperations();
        }
}

I want to run doSomething(

Answer 1

Just piece of code to illustrate behavior stated in Kerrek SB answer

#include 

namespace C{
    void Hello(){
        std::cout<<"Hello"<

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