From 9cdc8951ca1925076010797370e4dc19d25df9bc Mon Sep 17 00:00:00 2001
From: Artem Pavlenko <artem@mapnik.org>
Date: Fri, 10 Apr 2009 11:47:46 +0000
Subject: [PATCH] + pass parameter by const ref

---
 include/mapnik/raster.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/mapnik/raster.hpp b/include/mapnik/raster.hpp
index 9d2e7ce62..b4a7c7f4a 100644
--- a/include/mapnik/raster.hpp
+++ b/include/mapnik/raster.hpp
@@ -31,7 +31,7 @@ namespace mapnik {
     {
         Envelope<double> ext_;
         ImageData32 data_;
-        raster(Envelope<double> const ext,ImageData32& data)
+        raster(Envelope<double> const& ext,ImageData32& data)
             : ext_(ext),
               data_(data) {}
     };