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-rw-r--r--doc/posix-functions/mbsnrtowcs.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/posix-functions/mbsnrtowcs.texi b/doc/posix-functions/mbsnrtowcs.texi
index c6defd2c20..3a420c673a 100644
--- a/doc/posix-functions/mbsnrtowcs.texi
+++ b/doc/posix-functions/mbsnrtowcs.texi
@@ -14,6 +14,10 @@ FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, HP-UX 11, IRIX 6.5, Solaris
@item
This function produces invalid wide characters on some platforms:
Solaris 11.4.
+@item
+In the C or POSIX locales, this function can return @code{(size_t) -1}
+and set @code{errno} to @code{EILSEQ}:
+glibc 2.35.
@end itemize
Portability problems not fixed by Gnulib: