Tricky semantics of ranges & potentially numerous Phobos bugs

[Andrei Alexandrescu]

On 10/16/12 1:09 AM, H. S. Teoh wrote:
> The scary thing is, I see similar code like this all over Phobos. Does
> this mean that most of std.algorithm may need to be revised to address
> this issue? At the very least, it would seem that a code audit is in
> order to weed out this particular issue.

Such issues do happen, are relatively rare, and are virtually untested 
because there's been no unittests with a deliberately "bad" input range. 
Although of course we do need to add the appropriate fixes and 
unittests, I'm not worried about it at all systemically.

Andrei