[Haskell-cafe] ANN: network 220.127.116.11
Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=)
kazu at iij.ad.jp
Wed Sep 5 02:40:50 UTC 2018
> Small correction, the port number of course was and remains Word16
> not Word32.
Right. This is my fault. I have fixed this typo in github.
> One might also note that to the extent that applications did use the
> PortNumber in SockAddrInet, and SockAddrInet6 structures, they likely
> relied on the Num, Enum and Integral instances, rather than using
> "PortNum" directly.
> Those instances made it possible to use numeric literals or "fromIntegral"
> to create "PortNumber" from port numbers. And this has not changed. The
> only thing that's no longer possible is direct use of the "PortNum" constructor
> with values already in network byte order. This should be a rare impediment,
> and the removal of the constructor means that all problems are detected at
> So this is unlikely to be an issue for the majority of applications, which
> likely just use getaddrinfo() in any case, and don't build SockAddrInet*
> structures "by hand".
Thank you for your explanation!
This is exactly what we the maintainers intend.
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