* doc/posix-functions/btowc.texi (btowc): Mention incompatibility
with mbrtowc. See: http://bugs.gnu.org/23269#32
+2016-04-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ btowc: document problems in C locale
+ * doc/posix-functions/btowc.texi (btowc): Mention incompatibility
+ with mbrtowc. See: http://bugs.gnu.org/23269#32
+
2016-04-13 Paul Eggert <eggert@cs.ucla.edu>
mktime: improve integer overflow checking
@item
On AIX and Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
accommodate all Unicode characters.
+@item
+In the C or POSIX locales, this function is not consistent with
+Gnulib's @code{mbrtowc} and can return @code{WEOF}:
+glibc 2.23, MirOS BSD #10.
@end itemize