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-rw-r--r--Doc/lib/libtime.tex6
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/lib/libtime.tex b/Doc/lib/libtime.tex
index f40838a..e276045 100644
--- a/Doc/lib/libtime.tex
+++ b/Doc/lib/libtime.tex
@@ -324,6 +324,12 @@ Support for the \code{\%Z} directive is based on the values contained in
it is platform-specific except for recognizing UTC and GMT which are
always known (and are considered to be non-daylight savings
timezones).
+
+Only the directives specified in the documentation are supported. Because
+\code{strftime()} is implemented per platform it can sometimes offer more
+directives than those listed. But \code{strptime()} is independent of any
+platform and thus does not necessarily support all directives available that
+are not documented as supported.
\end{funcdesc}
\begin{datadesc}{struct_time}