From b06e8b97a9045139fca41abe5a10685ac2d1d62d Mon Sep 17 00:00:00 2001
From: Dima Dorfman
Date: Mon, 7 Jan 2002 06:03:37 +0000
Subject: [PATCH] Suggest using memmove(3) if src and dst may overlap.
PR: 33298
Submitted by: Tim J. Robbins
---
lib/libc/string/memcpy.3 | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/lib/libc/string/memcpy.3 b/lib/libc/string/memcpy.3
index bc7d786a26af..c970d7ce7a0b 100644
--- a/lib/libc/string/memcpy.3
+++ b/lib/libc/string/memcpy.3
@@ -82,5 +82,10 @@ is implemented using
.Xr bcopy 3 ,
and therefore the strings may overlap.
On other systems, copying overlapping strings may produce surprises.
-A simpler solution is to not use
-.Fn memcpy .
+Programs intended to be portable should use
+.Xr memmove 3
+when
+.Fa src
+and
+.Fa dst
+may overlap.