To help LDC/GDC

[Manu]

On 8 April 2013 21:53, Iain Buclaw <ibuclaw at ubuntu.com> wrote:

> On 8 April 2013 12:41, deadalnix <deadalnix at gmail.com> wrote:
>
>> On Monday, 8 April 2013 at 09:41:52 UTC, Iain Buclaw wrote:
>>
>>> It uses some type information, eg:
>>>
>>> const/immutable/wild  -> qualified const.
>>> shared -> qualified volatile.
>>> shared + const/wild -> qualified const/volatile.
>>>
>>>
>> const/wild can be muted via aliasing. I'm not sure how GCC's backend
>> understand const, but this seems unclear to me if this is correct.
>>
>>
> GCC's backend is pretty much C/C++ semantics.  So the const qualifier is
> shallow, and does not guarantee that no mutations will occur.
>

But D makes no further guarantee. I don't see how const in D is any
different than const in C++ in that sense? That's basically the concept of
const, it's not a useful concept for optimisation, only immutable is.
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