From 492899bfb2d278932e5ad5209aeb9f45a1bc9a3c Mon Sep 17 00:00:00 2001
From: maartenkeijzer <maartenkeijzer>
Date: Mon, 12 Mar 2001 14:27:31 +0000
Subject: [PATCH] invalidating supported now

---
 eo/src/eoSGA.h | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/eo/src/eoSGA.h b/eo/src/eoSGA.h
index 3cd90fd0..95980068 100644
--- a/eo/src/eoSGA.h
+++ b/eo/src/eoSGA.h
@@ -78,18 +78,23 @@ public :
 	for (i=0; i<_pop.size()/2; i++)
 	  {
 	    if ( rng.flip(crossoverRate) )
-	      {
-		// this crossover generates 2 offspring from two parents
-		cross(offspring[2*i], offspring[2*i+1]);
-	      }
+	    {
+		    // this crossover generates 2 offspring from two parents
+		    if (cross(offspring[2*i], offspring[2*i+1]))
+        {
+          offspring[2*i].invalidate();
+          offspring[2*i+1].invalidate();
+        }
+      }
 	  }
 
 	for (i=0; i < _pop.size(); i++)
 	  {
 	    if (rng.flip(mutationRate) )
-	      {
-		mutate(offspring[i]);
-	      }
+	    {
+		     if (mutate(offspring[i]))
+          offspring[i].invalidate();
+	    }
 	  }
 
 	_pop.swap(offspring);