RFC: naming for FrontTransversal and Transversal ranges
Michel Fortin
michel.fortin at michelf.com
Thu Apr 30 03:21:22 PDT 2009
On 2009-04-29 23:01:39 -0400, Rainer Deyke <rainerd at eldwood.com> said:
> Andrei Alexandrescu wrote:
>> 2. Value semantics with reference counting
>
> I like this optimization and use it all the time in my own code, but I'm
> not convinced that it should be the default. It's also problematic in
> multithreaded situations.
>
> I think a generic CopyOnWrite wrapper over arbitrary value types would
> be more useful. CopyOnWrite!(int[]).
But don't forget that D2 is going to have the shared keyword, possibly
with thread-local heaps. So multithreading won't be much of a problem:
if the variable is shared, the compiler should force locks as needed or
use atomic operations; if the variable is local to a thread, locks
should become no-ops and atomic operations regular ones, improving
performance.
Or at least that's what I'm getting from the hints we currently have.
>> 3. Reference semantics
>
> I'm strongly opposed to this option. Either of the other options would
> be acceptable.
Andrei mentioned a couple of reasons against 3, which are yours?
--
Michel Fortin
michel.fortin at michelf.com
http://michelf.com/
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