On 13.07.2011 16:43, Steven Schveighoffer wrote:
On Wed, 13 Jul 2011 02:32:41 -0400, Dmitry Olshansky
<[email protected]> wrote:
On 12.07.2011 18:22, dsimcha wrote:
The documentation for CTFE is outdated and specifies limitations
that no
longer exist thanks to Don's massive overhaul. For example, a big
one is that
pointers now work. What limitations that could potentially be
removed still
do exist in CTFE as of 2.054?
Just hited all of the below:
- try/catch
- intrinsics (bsr, bsf etc. ) this currently also means no Appender
Don has a patch for appender that allows it to work during CTFE:
https://github.com/D-Programming-Language/phobos/pull/129
Actually, that was merged, prior to 2.054 release, may want to try
appender again ;)
And I thought I was on a bleeding edge dmd, apparently I'm too slow to
pull these in time :)
- array.reserve
array.reserve is specific to the GC, and the GC isn't the same during
compile time. Asking for this is like asking for GC.malloc.
However, if there ever was a working D compiler written in D, these
kinds of things could be done no problem. Reserve does seem like a
useful thing to allow during CTFE.
Of course, I could change reserve to simply do nothing during ctfe,
which would make things "work", even though reserving wasn't actually
happening...
I'd say that would be an adequate workaround.
- foreach over tupple (aka static foreach)
Ok, so of all above try/catch is the last big thing.
--
Dmitry Olshansky
