From d133f10c9a98c10f60df827e134f45f56e6ad0a0 Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Wed, 2 Mar 2016 22:12:17 +0100
Subject: znot man page: notes on representation and tendness toward zero
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 man/znot.3 | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'man')

diff --git a/man/znot.3 b/man/znot.3
index f33bc28..99d7b40 100644
--- a/man/znot.3
+++ b/man/znot.3
@@ -18,6 +18,24 @@ It is safe to call
 .B znot
 with
 .IR "(a==b)" .
+.SH NOTES
+Be aware, the following code will halt for any input
+.P
+.nf
+#include <zahl.h>
+
+void
+silly(z_t a)
+{
+	while (!zzero(a))
+		znot(a, a);
+}
+.fi
+.P
+Also note that
+.B z_t
+uses neither two's complement, ones' complement, nor
+sign-and-magnitude.
 .SH SEE ALSO
 .BR zand (3),
 .BR zor (3),
-- 
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