Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> +  "Return the first element for which (PRED element) is non-nil in SEQ.
>> +If no element is found, return SENTINEL or nil.
>
>   "return SENTINEL or nil" should be just "return SENTINEL".
>
> Not only it's shorter, but it's also more precise (the current text
> doesn't say when it returns SENTINEL and when it returns nil).
>
>> +Note that `seq-find' has an ambiguity if the found element is nil
>> +and if no SENTINEL is specified, as it cannot be known if an
>> +element was found or not."
>
> It's not just for nil but for the case where the found value is
> identical to SENTINEL.

Thanks, I'll improve the docstring.

Nico
-- 
Nicolas Petton
http://nicolas-petton.fr