Man pages matching name iconv_open in section 3:

iconv_open.3.en	debian 10 / manpages-dev
iconv_open.3.es	debian 10 / manpages-es
iconv_open.3.ja	debian 10 / manpages-ja-dev
iconv_open.3.pt	debian 10 / manpages-pt-dev
iconv_open.3.zh_CN	debian 10 / manpages-zh
iconv_open.3.zh_TW	debian 10 / manpages-zh
iconv_open.3.en	debian 11 / manpages-dev
iconv_open.3.es	debian 11 / manpages-es-dev
iconv_open.3.fr	debian 11 / manpages-fr-dev
iconv_open.3.ja	debian 11 / manpages-ja-dev
iconv_open.3.pt	debian 11 / manpages-pt-dev
iconv_open.3.zh_CN	debian 11 / manpages-zh
iconv_open.3.zh_TW	debian 11 / manpages-zh
iconv_open.3.en	debian 12 / manpages-dev
iconv_open.3.es	debian 12 / manpages-es-dev
iconv_open.3.fr	debian 12 / manpages-fr-dev
iconv_open.3.ja	debian 12 / manpages-ja-dev
iconv_open.3.ru	debian 12 / manpages-ru-dev
iconv_open.3.zh_CN	debian 12 / manpages-zh
iconv_open.3.zh_TW	debian 12 / manpages-zh