> On Tue, 24 Aug 2021 at 16:36, Niall Douglas via Boost-users > <boost-users@lists.boost.org> wrote: > > > > On 24/08/2021 13:57, Nils Frielinghaus via Boost-users wrote: > > > > > What can be easily demonstrated though, is, that the > > translate_addrinfo_error function converts EAI_SYSTEM with errno=0 > > (which is triggered by the above set-up) into a Boost error code that > > shows success. > > > So this program will output "Success". > > >> This is a long standing design quirk of error_code which we have fixed > > in proposed status_code, which is hoped to supersede error_code in a > > future C++ standard.
> I think you are talking about a different problem. > The issue here is that > https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html > says "[EAI_SYSTEM] A system error occurred; the error code can be found in > errno." and apparently there is a implementation not honouring this contract. > This is happening way before there is any error_code. Earlier in the cited document https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html it reads "A zero return value for getaddrinfo() indicates successful completion; a non-zero return value indicates failure." This suggests to me that it is not correct to consider the return value EAI_SYSTEM with errno = 0 as a successful return value and that it would be better to handle this as a system error with unidentified cause. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users
