Man pages matching name dprintf in section 3:

dprintf.3.de	debian 10 / manpages-de-dev
dprintf.3.en	debian 10 / manpages-dev
dprintf.3.es	debian 10 / manpages-es
dprintf.3.ja	debian 10 / manpages-ja-dev
dprintf.3.de	debian 11 / manpages-de-dev
dprintf.3.en	debian 11 / manpages-dev
dprintf.3.es	debian 11 / manpages-es-dev
dprintf.3.fr	debian 11 / manpages-fr-dev
dprintf.3.ja	debian 11 / manpages-ja-dev
dprintf.3.nl	debian 11 / manpages-nl-dev
dprintf.3.de	debian 12 / manpages-de-dev
dprintf.3.en	debian 12 / manpages-dev
dprintf.3.fr	debian 12 / manpages-fr-dev
dprintf.3.ja	debian 12 / manpages-ja-dev
dprintf.3.nl	debian 12 / manpages-nl-dev