Shawn,
On 1/11/20 5:11 PM, Dmitry V. Levin wrote:
> Hi,
>
> On Sat, Jan 11, 2020 at 06:50:49PM +0400, Shawn Landden wrote:
>> Signed-off-by: Shawn Landden <shawn@xxxxxxx>
>> ---
>> 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
>
> I believe the "CONFORMING TO" is about conformance and therefore
> shall not be changed.
>
> Any notes about llvm-specific implementation details should go
> to a different section, e.g. "NOTES".
I'm not convinced that anything at all needs to be added to the
manual page. This is an implement-specific detail about a certain
compiler. Its behavior might change in the future. You do not
say anything about why t is relevant to document this detail.
Thanks,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
