DConf 2014 Day 1 Talk 4: Inside the Regular Expressions in D by Dmitry Olshansky

[Dmitry Olshansky via Digitalmars-d-announce]

11-Jun-2014 22:03, Atila Neves пишет:
> On Tuesday, 10 June 2014 at 19:36:57 UTC, bearophile wrote:
>> At about 40.42 in the "Thoughts on static regex" there is written
>> "even compile-time printf would be awesome". There is a patch about
>> __ctWrite in GitHug, it should be fixed and merged.
>>
>> Bye,
>> bearophile
>
> I wish I'd taken the mic at the end, and 2 days later Adam D. Ruppe said
> what I was thinking of saying: unit test and debug the CTFE function at
> runtime and then use it at compile-time when it's ready for production.
>

Yes, that's a starting point - a function working at R-T.

> Yes, Dmitry brought up compiler bugs. But if you write a compile-time UT
> and it fails, you'll know it wasn't because of your own code because the
> run-time ones still pass.

It doesn't help that it's not your fault :)
And with a bit of __ctfe's to workaround compiler bugs you won't be so 
sure of your code anymore.

>
> Maybe there's still a place for something more than pragma msg, but I'd
> definitely advocate for the above at least in the beginning. If
> anything, easier ways to write compile-time UTs would be, to me,
> preferable to a compile-time printf.
>

There is nice assertCTFEable written by Kenji in Phobos. I think it's 
our private magic for now but I see no reason not to expose it somewhere.

> Atila


-- 
Dmitry Olshansky