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pow.3: BUGS: pow() performance problem for some (rare) inputs has been fixed 

See https://sourceware.org/bugzilla/show_bug.cgi?id=13932
Fixed in glibc 2.28.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2020-05-23 21:29:34 +02:00
parent e9e9f2424c
commit 427e4505b0
1 changed files with 5 additions and 2 deletions
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7
man3/pow.3
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@ -329,9 +329,9 @@ The variant returning
also conforms to
SVr4, 4.3BSD, C89.
.SH BUGS
On 64-bits,
.\"
Before glibc 2.28,
.\" https://sourceware.org/bugzilla/show_bug.cgi?id=13932
on some architectures (e.g., x86-64)
.BR pow ()
may be more than 10,000 times slower for some (rare) inputs
than for other nearby inputs.
@ -341,6 +341,9 @@ and not
.BR powf ()
nor
.BR powl ().
This problem was fixed
.\" commit c3d466cba1692708a19c6ff829d0386c83a0c6e5
in glibc 2.28.
.PP
In glibc 2.9 and earlier,
.\"