To dup or not to dup?

[Frits van Bommel]

Lionello Lunesu wrote:
> Frits van Bommel wrote:
>> Jürgen Herz wrote:
>>> BTW
>>>   const char []a = "Test".dup;
>>> gives
>>>   consttest.d(3): Error: cannot evaluate
>>> _adDupT(&_D12TypeInfo_G4a6__initZ,"Test") at compile time.
>>>
>>> What does in want to tell me?
>>
>> It wants to tell you that the result of '"Test".dup' cannot be 
>> evaluated at compile time. In some cases, 'const' really _means_ 
>> constant in D, the value needs to be available at compile time (or 
>> actually at link time in many cases).
> 
> Strange, from the DMD changelog:
> 
> * The .dup property is now allowed for compile time function execution.
> 
> Why is it complaining for that .dup?

Because it's not constant enough to allow 'const', apparently. If you 
remove the 'const' it works just fine.