From 0143b832641d1529ee8d34a9f1d59a01da3ab1dc Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Thu, 10 Jul 2008 17:20:14 -0400
Subject: COMP: remove warning and check for assignment to itself in operator=

---
 Source/kwsys/RegularExpression.cxx | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Source/kwsys/RegularExpression.cxx')

diff --git a/Source/kwsys/RegularExpression.cxx b/Source/kwsys/RegularExpression.cxx
index 3566a651b5..6a623513e6 100644
--- a/Source/kwsys/RegularExpression.cxx
+++ b/Source/kwsys/RegularExpression.cxx
@@ -77,6 +77,10 @@ RegularExpression::RegularExpression (const RegularExpression& rxp) {
 // operator= -- Copies the given regular expression.
 RegularExpression& RegularExpression::operator= (const RegularExpression& rxp)
 {
+  if(this == &rxp)
+    {
+    return *this;
+    }
   if ( !rxp.program )
     {
     this->program = 0;
-- 
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