so what exactly is const supposed to mean?

[Bruno Medeiros]

Sean Kelly wrote:
> Bruno Medeiros wrote:
>> Sean Kelly wrote:
>>> Bruno Medeiros wrote:
>>>>
>>>> There is a slight difference from D's const and a const that places 
>>>> the data in ROM as you cannot get the address of a D const var (it's 
>>>> not an lvalue).
>>>
>>> Ever tried taking the address of a const string?  That you can't take 
>>> the address of other const types is simply a result of optimization.
>>>
>>
>> I tried it now, and the const string also can't be taken an address from:
>>
>>   const char[] str = "ABC";
>>
>>   void func()
>>   {
>>     *(&str) = "123"; // : "ABC" is not an lvalue
>>   }
> 
> That's interesting.  I would have expected all strings to live in a 
> static data segment.  And in fact they seem to, though initialization 
> seems to happen in a slightly weird manner:
> 

Yes, they have to live in a static data segment. But does that change 
anything? The value of "ABC" is already the address of the string, thus 
&"ABC" is not valid. (akin to &(&somevar) )



-- 
Bruno Medeiros - CS/E student
http://www.prowiki.org/wiki4d/wiki.cgi?BrunoMedeiros#D