Linux-man Archive on lore.kernel.org
 help / color / Atom feed
* [PATCH] bcmp: note that this function is no longer legacy due to LLVM 9
@ 2020-01-11 14:50 Shawn Landden
  2020-01-11 16:11 ` Dmitry V. Levin
  0 siblings, 1 reply; 5+ messages in thread
From: Shawn Landden @ 2020-01-11 14:50 UTC (permalink / raw)
  To: unlisted-recipients:; (no To-header on input); +Cc: linux-man, Shawn Landden

Signed-off-by: Shawn Landden <shawn@git.icu>
---
 man3/bcmp.3 | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/man3/bcmp.3 b/man3/bcmp.3
index ba9838019..18d238720 100644
--- a/man3/bcmp.3
+++ b/man3/bcmp.3
@@ -70,15 +70,21 @@ T{
 .BR bcmp ()
 T}	Thread safety	MT-Safe
 .TE
 .SH CONFORMING TO
 4.3BSD.
-This function is deprecated (marked as LEGACY in POSIX.1-2001): use
-.BR memcmp (3)
-in new programs.
+This function was deprecated (marked as LEGACY) by POSIX.1-2001).
 POSIX.1-2008 removes the specification of
 .BR bcmp ().
+LLVM 9, released in 2019, revived
+.BR bcmp ()
+and generates calls to it instead of
+.BR memcmp (3)
+as appropiate as an optimization (as
+.BR bcmp ()
+need not traverse memory in-order).
+.\" http://releases.llvm.org/9.0.0/docs/ReleaseNotes.html#noteworthy-optimizations
 .SH SEE ALSO
 .BR bstring (3),
 .BR memcmp (3),
 .BR strcasecmp (3),
 .BR strcmp (3),
-- 
2.20.1


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [PATCH] bcmp: note that this function is no longer legacy due to LLVM 9
@ 2020-01-11 14:55 Shawn Landden
  2020-01-17 11:57 ` Florian Weimer
  0 siblings, 1 reply; 5+ messages in thread
From: Shawn Landden @ 2020-01-11 14:55 UTC (permalink / raw)
  To: unlisted-recipients:; (no To-header on input); +Cc: linux-man, Shawn Landden

Signed-off-by: Shawn Landden <shawn@git.icu>
---
 man3/bcmp.3 | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/man3/bcmp.3 b/man3/bcmp.3
index ba9838019..18d238720 100644
--- a/man3/bcmp.3
+++ b/man3/bcmp.3
@@ -70,15 +70,21 @@ T{
 .BR bcmp ()
 T}	Thread safety	MT-Safe
 .TE
 .SH CONFORMING TO
 4.3BSD.
-This function is deprecated (marked as LEGACY in POSIX.1-2001): use
-.BR memcmp (3)
-in new programs.
+This function was deprecated (marked as LEGACY) by POSIX.1-2001).
 POSIX.1-2008 removes the specification of
 .BR bcmp ().
+LLVM 9, released in 2019, revived
+.BR bcmp ()
+and generates calls to it instead of
+.BR memcmp (3)
+as appropiate as an optimization (as
+.BR bcmp ()
+need not traverse memory in-order).
+.\" http://releases.llvm.org/9.0.0/docs/ReleaseNotes.html#noteworthy-optimizations
 .SH SEE ALSO
 .BR bstring (3),
 .BR memcmp (3),
 .BR strcasecmp (3),
 .BR strcmp (3),
-- 
2.20.1


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, back to index

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-11 14:50 [PATCH] bcmp: note that this function is no longer legacy due to LLVM 9 Shawn Landden
2020-01-11 16:11 ` Dmitry V. Levin
2020-01-21 19:52   ` Michael Kerrisk (man-pages)
2020-01-11 14:55 Shawn Landden
2020-01-17 11:57 ` Florian Weimer

Linux-man Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-man/0 linux-man/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-man linux-man/ https://lore.kernel.org/linux-man \
		linux-man@vger.kernel.org
	public-inbox-index linux-man

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-man


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git