https://www.unix.com/man-page/centos/3p/wcslen
wcslen(3p) centos man page | unix.com
Man page for wcslen(3p) on centos, from the unix.com online archive.
man pagewcslencentosunix
https://manpages.ubuntu.com/manpages/stonking/man3/wcslen.3posix.html
Ubuntu Manpage: wcslen, wcsnlen - get length of a fixed-sized wide-character string
get length of a fixed-sized wide-character string
of awide characterubuntumanpagewcslen