+1 — this would be a highly unusual addition to the standard.

> On Apr 28, 2022, at 12:58 PM, Jason McKesson via Std-Proposals <std-proposals_at_[hidden]> wrote:
>
> You failed to present any motivation for these changes. Furthermore, I
> don't know why we would want to add a bunch of macros (which cannot be
> imported from a module) for such trivial things. Since we got
> range-based for loops, the number of times I've had to loop over a
> count is dramatically reduced. And with `ranges::iota` or similar
> tools, that's now pretty much never. Having a way to spell
> `while(!expr)` seems pointless; just read the expression.
>
> And `rep` is just a bad idea. `while(true)` is an incredibly dangerous
> thing with a myriad of side-effects (if you don't do certain things in
> the loop, the forward progress guarantees of the standard allow the
> compiler to straight-up drop the loop body). It's sufficiently
> dangerous that we should absolutely not have a short-form version of
> it.
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