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@@ -136,6 +136,11 @@ T} Thread safety MT-Safe locale
C11, POSIX.1-2008.
.SH HISTORY
C99, POSIX.1-2001.
+.SH CAVEATS
+These functions make it difficult to
+distinguish newlines from other white space,
+This is especially problematic with line-buffered input,
+like the standard input stream.
.SH SEE ALSO
.BR fgets (3),
.BR getline (3),