At compile time

Jarrett Billingsley jarrett.billingsley at gmail.com
Wed Aug 5 06:29:10 PDT 2009


*On Wed, Aug 5, 2009 at 7:23 AM, Ary Borenszweig<ary at esperanto.org.ar> wrote:
> bearophile escribió:
>>
>> Jarrett Billingsley:
>>>
>>> C++ has static initialization that occurs before main() too.  It's just..
>>> hidden.<
>>
>> I see. I have to learn more about C++. Thank you.
>>
>> ------------------
>> Lars T. Kyllingstad:
>>
>>> This is good news! The restrictions you are referring to, are they any of
>>> the ones documented here:
>>> http://www.digitalmars.com/d/2.0/function.html#interpretation <
>>
>> That list has a point regarding what I was trying to do:
>>>
>>> 4. the function may not be a non-static member, i.e. it may not have a
>>> this pointer<
>>
>> It's true regarding stucts used as values too, and not just classes...
>
> It would be nice if the compiler could say so: "I can't evaluate it because
> you are using a this pointer". With other words, but much more useful than
> "non-constant expression".

Yes, oh my God, this is the main reason I don't use CTFE: debugging
them is virtually impossible, and the compiler does nothing to help
there.


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