Re: [Help-bash] Is it reasonable to let zero numeric value results in non zero exit status?

[Eduardo A . Bustamante López]

On Sun, Oct 21, 2018 at 04:18:31PM -0500, Peng Yu wrote:
(...)
> I am not sure whether it is a good idea to return non zero exit status
> when a numeric variable is zero, as this can cause problems when `set
> -e` is used. Is there is a strong justification why this behavior is
> reasonable?

I understand what you're saying. I do have to ask though, how else would these 
examples work?

    if ((a > b)); then
     ...
    fi

    while ((i--)); do
     ...
    done

    ((x)) && echo hi


What rule would you use to know when to discard the return code?