Re: The singleton design pattern in D, C++ and Java

[BLS]

On 16/07/2010 15:24, Justin Johansson wrote:

Which language out of C++, D and Java does this classical
"GoF" (gang-of-four***) design pattern best?

*** http://en.wikipedia.org/wiki/Design_Patterns

For my take, I prefer synchronization-free implementations.

Surely this topic has been around before???

<bystander awareness="clueless" name="Justin"/>

Note sure about "Best" but I like this D implementation.

auto st1 = Singleton();
auto st2 = Singleton();

final class Singleton {
        private static Singleton st;
        
        static this() {
                st = new Singleton;
        }

        static Singleton opCall() {
                return st;
        }
//....
}