Go backwards in for loop in rust

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Let's say I have a for loop like so:

rust

for i in 0..array.len() {}

How would I go forwards/backward in the for loop? It might look like this:

Value of I:

1 > 2 > 3 > 4 > 5 > 3 > 4 > 5 > 6

What I have tried:

I've tried reassigning I, but I don't believe it worked because the for-loop then changes the value of i again.

Thanks in advance,
Uncodeable

Posted 10-May-22 14:37pm

Uncodeable

Updated 10-May-22 20:09pm

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CPallini · Answer 1 · 2022-05-10T20:09:00

Solution 1

you might use the reverse iterator of the array, e.g.

rust

for i in array.iter().rev()
{
    //..
}

Posted 10-May-22 20:09pm

CPallini