Scoping namespace voodoo (c++)

[SpookyEddy]

Ok, so I am messing around with c++ and I noticed that the book I am using scopes the standard namespace like so...

#include <iostream>
using namespace std;

int main()
{
    //do some voodoo
    return 0;
}

However, a large number of the examples I have seen online opt for...

#include <iostream>

int main()
{
    using namespace std;
    //do some voodoo
    return 0;
}

So.. what is the prefered method and why?

I am new to this c++ stuff so be gentle.

Regards

ed

[Jüš† ä gü¥]

My preferred method is

#include <iostream.h>

int main(){

//your code

return 0;
}

I think namespaces are worthless and ultimately just convolute the language more and create even more incompatibilities and bulkier code, but that's just me.

As far as actually using namespaces and where they are placed, I'd say to go for placing it on the outer scope as, that way, it will be accessible throughout the entire program and not just in function main