The description of the callback function was still quite confusing. The
main usage for the return argument from the callback function is not
handling failures, but knowing wether the function did something in the
list or not, and stopping the iteration if only one item was looked for.
Add an example use of the function return value to implement a linear
search in the list and remove the note about the function "failing",
which is not what this parameter was meant to do (and I think that lead
to the initial inversion of "true" and "false" values.
Change-Id: If8cae8b8ee21ced2c899aef6033a89ab8dbf1621
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5339
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
4b0d8831c2