upgrade from 2.13 to 2.14

[Alexander Zubkov]

Hi Marek,

Yes, there is a change of syntax in 2.14. The notifications show you
that the return type of the function was automatically inferred.

https://gitlab.nic.cz/labs/bird/-/blob/v2.14/NEWS?ref_type=tags#L19

> User-defined filter functions that return values now should have return type
> statements. We still accept functions without such statement, if they could be
> properly typed.

Regards,
Alexander

On Thu, Feb 8, 2024 at 7:53 PM Marek Zarychta via Bird-users
<bird-users at network.cz> wrote:
>
> Dear List,
>
> today, after 299 days of machine uptime I broke 7-months lasting BGP
> sessions and upgraded both: FreeBSD and BIRD on our router from
> 13.2-STABLE to 14.0-STABLE. Now bird2-netlink-2.14 is installed and it
> seems to be working fine, though surprising notifications showed up in
> the log file:
>
> bird: /usr/local/etc/bird.conf:114:57: Inferring function
> check_import_v4 return type from its return value: bool
> bird: /usr/local/etc/bird.conf:162:58: Inferring function
> check_import_v6 return type from its return value: bool
>
> These lines are respectively:
> if (net.len < 8) || (net.len > 24) then return false;
> and
> if (net.len < 16) || (net.len > 48) then return false;
>
> I believe the warnings are harmless since  "configure check" passes, but
> please let me know if anything is wrong with this syntax.
>
> Cheers
>
> --
> Marek Zarychta
>