The function btowc() in glibc is thread safe.
It's marking matches glibc marking.
Signed-off-by: Ma Shimiao <mashimiao.fnst@xxxxxxxxxxxxxx>
---
man3/btowc.3 | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/man3/btowc.3 b/man3/btowc.3
index 833a35a..9c3cfd5 100644
--- a/man3/btowc.3
+++ b/man3/btowc.3
@@ -46,6 +46,18 @@ If \fIc\fP is
or not a valid multibyte sequence of length 1,
it returns
.BR WEOF .
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface Attribute Value
+T{
+.BR btowc ()
+T} Thread safety MT-Safe
+.TE
.SH CONFORMING TO
C99, POSIX.1-2001.
.SH NOTES
--
1.9.3
--
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