Is there a way to see if .init has been set by the user?

[Dicebot]

On Saturday, 21 September 2013 at 16:09:35 UTC, simendsjo wrote:
> On Saturday, 21 September 2013 at 15:43:11 UTC, Maxim Fomin 
> wrote:
>> On Saturday, 21 September 2013 at 11:13:57 UTC, simendsjo 
>> wrote:
>>> I want to know if a variable has changed .init, but I don't 
>>> know if it's possible if the .init value is the same. Does 
>>> anyone have a solution for this?
>>>
>>>   int a;
>>>   int b = 0;
>>>   pragma(msg, a.init); // 0
>>>   pragma(msg, b.init); // 0
>>>   // how can I see that b has "= 0"?
>>
>> Strictly speaking this is an ill-posed question. Are talking 
>> about testing at runtime whether some variable was changed 
>> from init to some non-default value?
>
> No, at compile-time. It's trivial to see if init is changed, 
> but I want to see if it's set even if it's to T.init.

I see. No, I don't think this feature is suitable for declarative 
approach abuse ;)

Even if you manage to hack something, it is unlikely to be 
reliable, I'd recommend to stick to UDA's until compiler exposes 
that info.