News and problems about foreach loops

[Peter Alexander]

On Saturday, 3 November 2012 at 14:04:45 UTC, bearophile wrote:
>
> A third solution is use idioms, and do not change D. It means 
> that on default the programmer puts always a "const" in 
> foreach. This avoids most bugs caused by fake Case3, and you 
> don't use it in the uncommon true Cases3.
>
> There are few more alternative ways to face this problem. 
> Including doing nothing :-)

I never use Case3, except accidentally. It's possibly the most 
common language-caused bug in my D code.

That said, I'm not a fan of introducing new keywords or 
introducing breaking changes in D code (even though I don't use 
Case3). I think this might just be something we have to live 
with, although making use of "const" idiomatic may be a good step 
forward (unfortunately, it's more unnecessary typing, so it's 
unlikely to catch on).