Craig Black wrote:

>>Walter did mention something about the GC allocating double the required
>>memory.
>>    
>>
BTW: I can't remember exactly what big W said so take that with a grain of salt.

There's also a capacity thing in gcx.d that get's the capacity of a pointer but I don't think this is accessible.

>I don't believe that std::vector just doubles the size.  If you observe the
>growth rate of std::vector as you add elements, it increases each time by a
>certain percentage, say 30% or so. Personally this more conservative
>approach is more attractive to me.  It wastes less memory and still
>maintains decent performance.
>  
>
Maybe but I think it depends on the application.  If you know your application though you can almost always write a better scheme manually.

I don't think D should do this directly (D needs to keep to the metal). I think it should be done as part of the library (as you've suggested).  But it seems more like a boost thing then an std thing.  I guess the lib would come with a range of pre-defined allocators that can be plugged in.

-- 
-Anderson: http://badmama.com.au/~anderson/