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Why is there a manpage for stdio, but not for stdlib in section 3? Linux has one, but not FreeBSD. Seems odd and is quite annoying as I'm trying to learn more about systems programming and I'd like to know what functions are readily available for writing such programs, even on barebones systems. At this point, I'm crawling around in manpages and doing ls /usr/share/man/man2 and /usr/share/man/man3, but that includes a lot of additional functions that aren't in the base system. Is there a better way to figure out what functions can be relied on in a basic system?