Slow performance compared to C++, ideas?

Zach the Mystic reachzach at gggggmail.com
Tue Jun 4 00:50:31 PDT 2013


On Tuesday, 4 June 2013 at 07:39:04 UTC, Jonathan M Davis wrote:
> On Tuesday, June 04, 2013 00:25:39 Walter Bright wrote:
>> On 6/3/2013 10:58 PM, Andrei Alexandrescu wrote:
>> > Unless fresh arguments, facts, or perspectives come about, I 
>> > am personally
>> > not convinced, based on this thread so far, that we should 
>> > operate a
>> > language change.
>> One possibility is to introduce virtual as a storage class 
>> that overrides
>> final. Hence, one could write a class like:
>> 
>> class C {
>>    final:
>>      void foo();
>>      void baz();
>>      virtual int abc();
>>      void def();
>> }
>> 
>> This would not break any existing code, and Manu would just 
>> need to get into
>> the habit of having "final:" as the first line in his classes.
>
> That would be good regardless of whether virtual or non-virtual 
> is the
> default. In general, the function attributes other than access 
> level specifiers
> and @safety attributes suffer from not being able to be undone 
> once you use
> them with a colon or {}.
>
> - Jonathan M Davis

Yeah, it's basically removing D's inherent bias against 
programmers concerned with performance as opposed to flexibility 
by allowing performance people such as Manu to structure their 
code however they want. The price is a keyword new to D but so 
common elsewhere it hardly seems noticeable as such.


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