Testing some singleton implementations

[Dejan Lekic]

On Friday, 31 January 2014 at 17:10:08 UTC, Andrei Alexandrescu 
wrote:
> On 1/31/14, 3:42 AM, Andrej Mitrovic wrote:
>> On 1/31/14, Dejan Lekic <dejan.lekic at gmail.com> wrote:
>>> SingletonSimple is a winner
>>
>> Well yeah, but that's not really the only thing what a 
>> singleton is
>> about. It's also about being able to initialize the singleton 
>> at an
>> arbitrary time, rather than in a module constructor before 
>> main() is
>> called.
>
> Well yah Singleton should be created on first access.
>
> Andrei

If that is what people want, then David's version is definitely 
the best one.