[swift-evolution] C-style For Loops

[Per Melin]

On Sat, Dec 5, 2015 at 11:10 AM, Matthijs Hollemans <mail at hollance.com>
wrote:

>
>
Another example from the same LinkedList class. It finds the right place to
> insert a new node:
>
>   for next = head; next != nil && index > 0; prev = next, next = next!.
> next, --index { }
>
> Extreme? Probably, but I like it better than the same thing done in five
> lines of while loop.
>

next = head; while next != nil && index > 0 { prev = next; next =
next!.next; --index }

A 'for' statement gets away with a single line only because it substitutes
semicolons and commas for line breaks. You can do the same with 'while'.

But as Joe pointed out, you can recreate an almost identical 'for'
with autoclosures
anyway.
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