From 3a43ea50843e4f6db73b8edf637dfd209ffbe2ab Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Wed, 23 May 2012 22:19:05 +0200
Subject: FFI: Equality comparisons never raise an error.

---
 doc/ext_ffi_semantics.html | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'doc')

diff --git a/doc/ext_ffi_semantics.html b/doc/ext_ffi_semantics.html
index 2dbe41e9..304befa7 100644
--- a/doc/ext_ffi_semantics.html
+++ b/doc/ext_ffi_semantics.html
@@ -724,6 +724,11 @@ of them is an <tt>uint64_t</tt>, the other side is converted to an
 both sides are converted to an <tt>int64_t</tt> and a signed
 comparison is performed.</li>
 
+<li><b>Comparisons for equality/inequality</b> never raise an error.
+Even incompatible pointers can be compared for equality by address. Any
+other incompatible comparison (also with non-cdata objects) treats the
+two sides as unequal.</li>
+
 </ul>
 
 <h3 id="cdata_key">cdata objects as table keys</h3>
-- 
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