const assignments problem again

[Kagamin]

bearophile Wrote:

> - And foo can't be const or immutable, I don't like this.

I suppose accidental overwrite bugs are overrated. I have never seen them even from evil programmers. If you write random code, overwrite is not your only problem, you can as well read wrong variable or call wrong function. No language will help you if your code is junk. You should fix this in a different way.