[fpc-devel] class constants

[Jonas Maebe]

On 19 Oct 2009, at 16:18, Peter Popov wrote:

>> An example would be
>> TItemCache = class
>> private
>>   const DEFAULT_CACHE_SIZE = 1024;
>>  ...
>> end;
>>
>> sure a global value would do, but there is no need for the value to  
>> be global.
>
> This is a good example. However, the same paradigm can be achived by  
> a function:
>
> function TItemCache.DEFAULT_CACHE_SIZE: Integer;
> begin
>  Result := 1024;
> end;
>
> If properly inlined, the compiled code is the same and semantically  
> the two are the same.

Except if you want to use the constant in another constant expression  
(which is not possible with a function, inlined or not).


Jonas