Hello, the Austin Group has a bug at https://austingroupbugs.net/view.php?id=1647 that lead to a (quite late) ballot comment for C23. It seems that musl is the only implementation here that plays by the book and has no byte of output at all for this call printf("%lc", L'\0'); All others seem to be more consistent with the other "c" output formats and print one NUL byte. Are there any feelings if we are going to change this in the sense as AG proposes? Thanks Jₑₙₛ -- :: ICube :::::::::::::::::::::::::::::: deputy director :: :: Université de Strasbourg :::::::::::::::::::::: ICPS :: :: INRIA Nancy Grand Est :::::::::::::::::::::::: Camus :: :: :::::::::::::::::::::::::::::::::::: ☎ +33 368854536 :: :: https://icube-icps.unistra.fr/index.php/Jens_Gustedt ::