[swift-evolution] Change `repeat` to loop indefinitely if no while clause is present

Taras Zakharko taras.zakharko at uzh.ch
Tue May 10 16:05:17 CDT 2016

When I need a loop with complex control flow that does not fit into the classical while {} or repeat {} while structure, I use this:

do_stuff: do {
  continue do_stuff

This pattern explicit and allows very complex control flow patterns without the drawbacks of the unrestricted goto construct. 

Therefore I don’t see utility with having a repeat {} without while clause. 



> On 10 May 2016, at 22:39, Dominik Pich via swift-evolution <swift-evolution at swift.org> wrote:
>>> On May 10, 2016, at 3:30 PM, Tyler Cloutier via swift-evolution <swift-evolution at swift.org> wrote:
>>> Secondly it’s a very simple way of introducing new programmers to loops. It’s IMHO more clear to a new programmer that repeat will just repeat indefinitely vs while true.
>> This point seems strange to me - why teach a new programmer about loops by first showing them a looping construct they should probably never use in actual practice until they really know what they’re doing?
> totally agree… it would be a bad first introduction, id say :)
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