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Browse and Discover Manpages
(programming.dev)
A community for everything relating to the GNU/Linux operating system (except the memes!)
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Original icon base courtesy of lewing@isc.tamu.edu and The GIMP
On Archlinux at least, the glibc package includes info pages for C functions. Just type info libc at the command line, or use info inside emacs. There are hyperlinks in info pages, it's a nicer interface than man pages.