On Sunday, September 23, 2012 16:40:34 Andrei Alexandrescu wrote: > http://www.prowiki.org/wiki4d/wiki.cgi?LanguageDevel/DIPs/DIP19
My #1 concern here is that for loops do _not_ ever change how they function with regards to commas (which the DIP seems to do, but it also seems to imply that we might want to get rid of that later - which I do _not_ agree with). The comma operator is occasionally useful beyond for loops, but it's usually considered bad practice to do so, so if we want to get rid of it aside from for loops, then I have no problem with that. If anything, I'd argue that bringing tuples into the mix is muddying matters, since I think that there's a solid argument for deprecating the comma operator based solely on the problems that it causes even if we never add any other syntax which uses commas in a way that the comma operator prevents. As to whether we add tuples or not, I don't know. Being able to do something like. int i; string s; (i, s) = foo(); or (auto i, string is) = foo(); would be useful, but I can live without it. std.typecons.tuple takes care of most of what you need from tuples IMHO. So, if we can find a way to cleanly add tuples to the language, I'm fine with that, but I'm also fine with leaving tuples as they are. - Jonathan M Davis
