On 06/12/2014 05:46 PM, monarch_dodra wrote: > On Thursday, 12 June 2014 at 15:09:51 UTC, simendsjo wrote: >> >> _ is an often used identifier for "i don't care" in many languages. The >> following works: >> foreach(_; 0..n) > > One issue is that "_" is still an actual identifier, with normal name > collision rules. So that works only once. When you nest your loops, > you'll end up having conflicts, and name your "i don't care variable" > things such as "_", "__", "___", "_1", "_2" etc... > > It actually happens quite often I find. >
Yeah, not good. Does any sane person use _ as a variable identifier and then reference it? A breaking change would be a special rule so _ can never be used and is allowed to shadow. Of course - this could break existing code, so it will never happen :)
