On 03/03/2011 05:03 PM, Andrei Alexandrescu wrote:
On 3/3/11 8:34 AM, Steven Schveighoffer wrote:
On Thu, 03 Mar 2011 07:41:49 -0500, Trass3r <u...@known.com> wrote:
replace() doesn't work in CTFE anymore cause it was modified to be
based on Appender.
According to klickverbot, other phobos functions share that fate.
I think something should be done about this. Couldn't Appender be
implemented without using a pointer to a struct?
Yes, it is something I intend to do. I want to make an (un@safe) scoped
appender which does not use a pImpl, along with a safe appender which
does use pImpl.
It should be as easy as making the impl struct a public struct.
-Steve
One broader question would be if Appender's optimization is still needed after
Steve's improvements to ~=. What is the current performance gap between using
~= and Appender?
When I tried to use Appender, it was actually slightly slower than plain ~=.
The reason was, IIRC, Appender is only efficient when bits added are simple
elements, not mini-arrays to be concatenated (there was a thread about that).
There was also an issue with reserve.
Denis
--
_________________
vita es estrany
spir.wikidot.com
