Andrei Alexandrescu wrote:
Don wrote:
Andrei Alexandrescu wrote:
Eldar Insafutdinov wrote:
Jesse Phillips Wrote:
Jason House wrote:
Andrei's finishing his last TDPL chapter, Sean is updating
std.thread(?), and Walter's been fixing forward reference and CTFE
bugs. What's left?
This page[1] has been getting regular updates, so it should do a good
job answering the question.
1.
http://www.prowiki.org/wiki4d/wiki.cgi?LanguageDevel#FutureDirections
From this list: default struct constructors?
Walter doesn't want. This will go down as one of the larger language
incapabilities.
Andrei
What's the reason? Does he dislike the concept, or feel it's a
implementation disaster, or something else?
There are concerns about implementation difficulty and also about
muddying other parts of the language, e.g. T.init may fail.
Good to know.
I think not having struct default constructors muddies some other
things, though. For example, I don't see the point of struct invariants
if it's possible to create a struct which doesn't obey the invariant.
I think the semantics of T.init are a bit doubtful already. Consider
that floats default init to NaN, and char.init is not a valid UTF
character. I don't think the existing T.init is trouble-free.
