From: Guido Günther <agx@sigxcpu.org>
Date: Thu, 6 Oct 2011 11:32:49 +0000 (+0200)
Subject: Document STREQ_NULLABLE and STRNEQ_NULLABLE
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=3addd1519544b96d84813951d45cdd5ef9343d7c;p=libvirt.git

Document STREQ_NULLABLE and STRNEQ_NULLABLE
---

diff --git a/HACKING b/HACKING
index 2df560a294..69ea96b29d 100644
--- a/HACKING
+++ b/HACKING
@@ -496,6 +496,13 @@ following semantically named macros
 
 
 
+- To avoid having to check if a or b are NULL:
+
+  STREQ_NULLABLE(a, b)
+  STRNEQ_NULLABLE(a, b)
+
+
+
 
 
 
diff --git a/docs/hacking.html.in b/docs/hacking.html.in
index 1a32d07438..89f9980f45 100644
--- a/docs/hacking.html.in
+++ b/docs/hacking.html.in
@@ -585,6 +585,12 @@
       <li><p>For strict equality of a prefix:</p>
 <pre>
   STRPREFIX(a,b)
+</pre>
+      </li>
+      <li><p>To avoid having to check if a or b are NULL:</p>
+<pre>
+  STREQ_NULLABLE(a, b)
+  STRNEQ_NULLABLE(a, b)
 </pre>
       </li>
     </ul>