Man pages matching name strrchr in section 3:

strrchr.3.de	debian 10 / manpages-de-dev
strrchr.3.en	debian 10 / manpages-dev
strrchr.3.es	debian 10 / manpages-es
strrchr.3.ja	debian 10 / manpages-ja-dev
strrchr.3.pl	debian 10 / manpages-pl-dev
strrchr.3.de	debian 11 / manpages-de-dev
strrchr.3.en	debian 11 / manpages-dev
strrchr.3.es	debian 11 / manpages-es-dev
strrchr.3.fr	debian 11 / manpages-fr-dev
strrchr.3.ja	debian 11 / manpages-ja-dev
strrchr.3.pl	debian 11 / manpages-pl-dev
strrchr.3.de	debian 12 / manpages-de-dev
strrchr.3.en	debian 12 / manpages-dev
strrchr.3.es	debian 12 / manpages-es-dev
strrchr.3.fr	debian 12 / manpages-fr-dev
strrchr.3.ja	debian 12 / manpages-ja-dev
strrchr.3.pl	debian 12 / manpages-pl-dev