Wheres the best location in cpp file or hpp file for a namespace declaration?

[Noobscratcher]

Hello been coding in C++ for 3 years using Notepad++ but still need some information so my question is wheres the best location for a namespace declaration?

For example :

//main.cpp 
#include <iostream>

namespace TestGroup
{
    bool
    One = false,
    Two = true,
    Three = false,
    Four = 1,
    Five = 0;
}

int main()
{
   std::cout << One << Two << Three << Four << Five << std::endl;
   std::cout << "Hello there" << std::endl;
   return 0;
}

[ne555]

I don't understand what you are trying to say with that faulty code.

[Noobscratcher]

How can you not understand what I've written?

Namespace declaration is located in the main.cpp file under the header for std libary "iostream" which looks like:

//main.cpp 
#include <iostream>

//////////////////////////////////////
namespace TestGroup
{
    bool
    One = false,
    Two = true,
    Three = false,                          ///<------------------- HERE
    Four = 1,
    Five = 0;
}
////////////////////////////////////////
int main()
{
   std::cout << One << Two << Three << Four << Five << std::endl;
   std::cout << "Hello there" << std::endl;
   return 0;
}

When I mean location , I'm saying where in the main.cpp file does the Namespace declaration which looks like :

namespace TestGroup
{
    bool
    One = false,
    Two = true,
    Three = false,
    Four = 1,
    Five = 0;
}

goes in a cpp or hpp file.

Do you understand?

[LB]

They must be in the header, having them in the source is optional:

//header.hpp
namespace Test
{
    void f();
    void g();
}

//source.cpp
#include "header.hpp"

namespace Test
{
    void f()
    {
    }
}
void Test::g()
{
}

[Noobscratcher]

Awesome Thank You! :D , Header files always mostly for namespace declarations thanks ;)