The function log2(), log2f() and log2l() are thread safe.
Signed-off-by: Ma Shimiao <mashimiao.fnst@xxxxxxxxxxxxxx>
---
man3/log2.3 | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/man3/log2.3 b/man3/log2.3
index febd171..e14e653 100644
--- a/man3/log2.3
+++ b/man3/log2.3
@@ -88,6 +88,20 @@ For a discussion of the errors that can occur for these functions, see
.BR log (3).
.SH VERSIONS
These functions first appeared in glibc in version 2.1.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw24 lb lb
+l l l.
+Interface Attribute Value
+T{
+.BR log2 (),
+.BR log2f (),
+.BR log2l ()
+T} Thread safety MT-Safe
+.TE
.SH CONFORMING TO
C99, POSIX.1-2001.
The variant returning
--
1.8.3.1
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