Man pages matching name getchar in section 3:

getchar.3.en	debian 10 / manpages-dev
getchar.3.es	debian 10 / manpages-es
getchar.3.ja	debian 10 / manpages-ja-dev
getchar.3.en	debian 11 / manpages-dev
getchar.3.fr	debian 11 / manpages-fr-dev
getchar.3.ja	debian 11 / manpages-ja-dev
getchar.3.en	debian 12 / manpages-dev
getchar.3.fr	debian 12 / manpages-fr-dev
getchar.3.ja	debian 12 / manpages-ja-dev