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Message-ID: <20120412184522.6c7b72a3@newbook>
Date: Thu, 12 Apr 2012 18:45:22 -0700
From: Isaac Dunham <idunham@...abit.com>
To: musl@...ts.openwall.com
Subject: [PATCH] string.h, _BSD_SOURCE, and *index()
I was working on _BSD_SOURCE for string.h.
Warning: several of the functions are mislabeled as _GNU_SOURCE in the
manpages.
Everything in strings.h should be available if _GNU_SOURCE ||
BSD_SOURCE is defined and string.h is included.
Actually, that's slightly an oversimplification-there are two
functions (*_l) that should be _GNU_SOURCE only.
(r)index was X/Open legacy, and has been dropped. The Open Group
recommended using
#define index(a,b) strchr((a),(b))
#define rindex(a,b) strrchr((a),(b))
Which will let us remove two more files if we do it (rindex.c & index.c)
However, would removing those break the ABI?
There are two patches attached: the first (string.diff) will define
everything from strings.h if defined _BSD_SOURCE || _GNU_SOURCE
The second patch (rindex.diff) applies the second change, but does not
remove (r)index.c, to prevent ABI breakage.
Isaac Dunham
View attachment "string.diff" of type "text/x-patch" (2056 bytes)
View attachment "index.diff" of type "text/x-patch" (929 bytes)
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