Re: [PATCH 00/13] [RFC] Rust support

[Leandro Coutinho <lescoutinhovr@gmail.com>]

Much better!

Thank you Greg!

On Sun, May 9, 2021 at 6:49 PM Greg Morenz <greg@droid.cafe> wrote:
>
> > Rust `for` works fine, until the step is not a simple unsigned int, eg:
> > for (int i = n / 2; i > 0; i /= 2)
> >
> > In Rust you do: (please let me know if there is a better way):
> > let mut i = n / 2;
> > while i > 0 {
> >     // some logic ...
> >     i /= 2;
> > }
>
> For this specific example, you could do
>
> let mut i = n;
> while { i /= 2; i > 0 } {
>     // some logic ...
> }
>
> This works because { i /= 2; i > 0 } is a single "block" expression that first
> divides i by two, and then "returns" (at the block level) i > 0. Note I have to
> not pre-divide n by two when initializing i.
>
> In general rust doesn't have an equivalent construct to C style for loops though.