Mention platform-dependent limitations of wchar_t.

[gnulib.git] / doc / posix-functions / vwprintf.texi

diff --git a/doc/posix-functions/vwprintf.texi b/doc/posix-functions/vwprintf.texi
index 28ca778..bfc9960 100644 (file)
--- a/doc/posix-functions/vwprintf.texi
+++ b/doc/posix-functions/vwprintf.texi
@@ -15,4 +15,7 @@ Portability problems not fixed by Gnulib:
 @item
 This function is missing on some platforms:
 NetBSD 3.0, OpenBSD 3.8, HP-UX 11.00, IRIX 6.5, Solaris 2.6, Cygwin, Interix 3.5, BeOS.
+@item
+On AIX and Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
+accommodate all Unicode characters.
 @end itemize