From 1be65a94ade6bb9790a7cd42e6656d2d525cdd69 Mon Sep 17 00:00:00 2001
From: maartenkeijzer <maartenkeijzer>
Date: Tue, 4 Sep 2007 13:44:41 +0000
Subject: [PATCH] made fitness() query return const reference

---
 eo/src/EO.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eo/src/EO.h b/eo/src/EO.h
index fb93d9aa..1fa1e94c 100644
--- a/eo/src/EO.h
+++ b/eo/src/EO.h
@@ -57,7 +57,7 @@ public:
   virtual ~EO() {};
 
   /// Return fitness value.
-  Fitness fitness() const {
+  const Fitness& fitness() const {
     if (invalid())
       throw std::runtime_error("invalid fitness");
     return repFitness;