On Fri, 22 May 2009, Robert Watson wrote:
On Fri, 22 May 2009, Bruce Evans wrote:
What about with "man errno". Man pages are slightly more likely to be
...
... On the topic of man pages though -- I was interested
to see that Mac OS X does not ship with an errno(2), despite shipping with a
BSD-derived errno.h.
Under FreeBSD, errno.2 is only a link to intro.2. This link was there in
libc/sys/Makefile.inc rev.1.1. More than half of intro.2 is about error
numbers.
I expected to find error numbers described in strerror.3 or perror.3.
perror.3 is only a link to sterror.3 (so is sys_errlist.3, which is
probably the right place for documenting the list). strerror.3 refers
to intro.2 but not errno.2. errno.2 is referred to mainly in au_token(3)
and its 46 links.
apropos(1) does an especially poor job for errno since it gets spammed
more than usual by links, and errno isn't a function. It doesn't find
errno(2), intro(2) or strerror(2), but it finds au_bsm_to_errno(3) and
many other functions with errno in their name, and then gets spammed
by links to these; it finds pcap_strerror(3) due to errno in its
description, and it finds perl's Errno(3).
Bruce
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