LinkedIn Article to be: Why you need to start moving off C/C++ to D, now.

Araq via Digitalmars-d digitalmars-d at puremagic.com
Tue Jul 15 16:02:18 PDT 2014


On Tuesday, 15 July 2014 at 21:11:24 UTC, H. S. Teoh via 
Digitalmars-d wrote:
> On Tue, Jul 15, 2014 at 09:03:36PM +0000, Araq via 
> Digitalmars-d wrote:
>> >
>> >The only way to *really* guarantee 100% predictable memory
>> >reclamation is to write your own. Except that we all know how
>> >scalable and bug-free that is. Not to mention, when you need 
>> >to
>> >deallocate a large complex data structure, *somebody* has to 
>> >do the
>> >work -- either you do it yourself, or the reference counting
>> >implementation, or the GC. No matter how you cut it, it's 
>> >work that
>> >has to be done, and you have to pay for it somehow; the cost 
>> >isn't
>> >going to magically disappear just because you use reference 
>> >counting
>> >(or whatever other scheme you dream up).
>> >
>> 
>> Actually it completely disappears in a copying collector since 
>> only
>> the live data is copied over ...
>
> Nope, you pay for it during the copy. Read the linked paper, it 
> explains
> the duality of tracing and reference-counting. Whether you 
> trace the
> references from live objects or from dead objects, the overall
> computation is equivalent, and the cost is effectively the 
> same. Once
> you've applied the usual optimizations, it's just a matter of 
> time/space
> tradeoffs.

This is wrong on so many levels... Oh well, I don't care. Believe 
what you want.


More information about the Digitalmars-d mailing list