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

[Peng Yu]

Hi,

I see the following.

((x=0))
$ echo $?
1

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?

-- 
Regards,
Peng