Variable-length stack allocated arrays

Andrei Alexandrescu SeeWebsiteForEmail at erdani.org
Mon Jan 11 01:58:14 PST 2010


grauzone wrote:
> bearophile wrote:
>> void bar(int n) {
>>   scope int[] a = new int[n]; // stack-allocated
>>   foo(a);
>> }
> 
> Why are you making such proposals, when one of the core developers even 
> thought about removing normal "scope"? It's almost 100% guaranteed that 
> nobody will listen.
> 
> I personally find it a good idea to find new ways to reduce producing 
> memory garbage. The D GC is slow and bad, so you'd better avoid it.
> 
> Let's make this claim: it is impossible to write high performance 
> applications (that need to make use of dynamic memory allocation) in D 
> without resorting to "unsafe" techniques. That would include allocating 
> memory on the stack, or manually freeing memory.

I write high-performance code in D without resorting to unsafe 
techniques. Much of my code allocates arrays only in the beginning and 
uses them throughout.


Andrei



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