Where are manpages about libc?

["Chung, Ha-Nyung" <alita@kldp.org>]

 I couldn't find out the package containing manpages for
 libc, I think. i.e. printf(3), scanf(3), etc
 
 Where are they?

-- 
 Chung, Ha-Nyung <alita@kldp.org>