Re: Segmentation fault instantiating a Nim array

[miran]

> for h in 0..H:
> 
> for w in 0..W:

This is the source of your error — you're trying to do something at positions 
`H` and `W`, and your array has `H` elements: from `0` to `H-1`.

To fix it, use `..<` which excludes upper limit:
    
    
    for h in 0 ..< H:
        for w in 0 ..< W:
    
    
    Run