Andrei Alexandrescu wrote:
Walter Bright wrote:
Andrei Alexandrescu wrote:
Bill Baxter wrote:
On Tue, Dec 23, 2008 at 11:30 AM, Jerry Quinn
<jlqu...@optonline.net> wrote:
This was an interesting read. It would be nice to see a discussion
of how const is going to fit in in terms of optimization potential,
since you can always cast it away.
It's basically useless for optimizations I think.
Even if the view of the data you have is const, someone else might
have a non-const view of the same data.
So for instance, if you call any function, your "const" data could
have been changed via non-const global pointers to the same data.
--bb
Const is still useful because inside a function you know for sure
that another thread can't modify the data.
I think you meant immutable.
I meant const.
In the future, of course, "shared const" means another thread can modify
it, but "const" means it cannot. Is that what you meant?
