On Wed, 02 May 2012 16:05:13 -0400, Joseph Rushton Wakeling
<[email protected]> wrote:
On 30/04/12 16:03, Steven Schveighoffer wrote:
Try removing the ref and see if it goes back. That usage of ref should
not
affect anything (if anything it should be slower, since it's an extra
level of
indirection).
Removing the ref ups the time as described before, but only with GDC
(DMD the runtime is the same). It's a real effect.
I'm not familiar with GDC, but as bearophile says, it sounds like a
compiler bug. Maybe GDC is making an optimization in one case and not in
the other, but both should be equivalently able to get the optimization.
There is no implicit local copy for const. I have a suspicion that you
changed
two things and forgot about one of them when running your tests.
Really don't think so. You can even check the version history of
changes if you like!
IIRC, your original post concerned not-checked in code. Anyway, if you've
re-run the tests, this is a confirmation. I'd go ahead and file a bug
against GDC. Rest assured, const should not *slow down* anything.
-Steve
