Could we get a LP64 version identifier?

[Frits van Bommel]

Jacob Carlborg wrote:
> Walter Bright wrote:
>> Jacob Carlborg wrote:
>>> Could we get a LP64 version identifier? I know that you can use this 
>>> code:
>>>
>>> "static if ((void*).sizeof > int.sizeof)"
>>>
>>> to do the same but that's not particular clear that the programmer 
>>> wants to check for LP64. If so, I hope we could get it in D1 also.
>>
>> Yeah, I agree, and it's already in both for the next update. It'll be 
>> D_LP64.
> 
> Are you saying that D_LP64 isn't implemented in the current version? 
> Because I noticed that it was already listed in the documentation: 
> http://www.digitalmars.com/d/1.0/version.html
> When I tried to set the D_LP64 version with GDC it said: "Error: version 
> identifier 'D_LP64' is reserved and cannot be set" and GDC is quite old 
> now. But perhaps it's only reserved and not implemented yet.

I just tried it. D_LP64 isn't set on my GDC, yet (void*).sizeof is 8.
So it doesn't work yet.

Some testing shows that all DMD-frontend based compilers (i.e. DMD, GDC 
and LDC) seem to produce that error message for any version identifier 
starting with "D_" (Including "D_" itself).