From 6068c0461b424cd52f9166099e2d28eb27ed1dbf Mon Sep 17 00:00:00 2001
From: Philip Guenthe <guenther@cvs.openbsd.org>
Date: Fri, 23 Nov 2012 22:54:09 +0000
Subject: Copy from the is* manpages the CAVEAT about the input range.

ok jmc@
---
 lib/libc/gen/toupper.3 | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'lib/libc/gen/toupper.3')

diff --git a/lib/libc/gen/toupper.3 b/lib/libc/gen/toupper.3
index 62cd690c7e7..5eae1357300 100644
--- a/lib/libc/gen/toupper.3
+++ b/lib/libc/gen/toupper.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: toupper.3,v 1.13 2007/05/31 19:19:29 jmc Exp $
+.\"	$OpenBSD: toupper.3,v 1.14 2012/11/23 22:54:08 guenther Exp $
 .\"
 .\" Copyright (c) 1989, 1991 The Regents of the University of California.
 .\" All rights reserved.
@@ -31,7 +31,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: November 23 2012 $
 .Dt TOUPPER 3
 .Os
 .Sh NAME
@@ -97,3 +97,11 @@ The
 .Fn toupper
 function conforms to
 .St -ansiC .
+.Sh CAVEATS
+The argument to
+.Nm
+must be
+.Dv EOF
+or representable as an
+.Li unsigned char ;
+otherwise, the result is undefined.
-- 
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