pure and custom new / delete

[David Nadlinger]

On Tuesday, 26 June 2012 at 16:52:48 UTC, Benjamin Thaut wrote:
> Am 26.06.2012 18:44, schrieb Timon Gehr:
>> On 06/26/2012 06:05 PM, Benjamin Thaut wrote:
>>> Is the compiler smart enough to optimize away a function 
>>> pointer I
>>> created localy just so I can cast it?
>>> […]
>>
>> You can examine the assembly code. DMD is perhaps not smart 
>> enough (it
>> is unable to inline directly called function literals, so I am 
>> not
>> optimistic.) LDC and GDC should certainly optimize it out.
>
> The more I get into this, the more I get the feeling that all 
> this "D can be used without a GC" is just a marketing trick to 
> get C++ guys to use D.

This has nothing to do with the GC, just with the compiler 
turning an indirect jump to a statically known address into a 
direct one. Every decent compiler should optimize it away, and 
even if it doesn't, it still won't kill you in 99.9% of the use 
cases.

David