From 1ecf3f0889e2daf3f84879e6733fb9abac395c1a Mon Sep 17 00:00:00 2001
From: artemp <artem@mapnik.org>
Date: Mon, 9 Feb 2015 13:46:01 +0100
Subject: [PATCH] use const ref when iterating over geometries in feature

---
 include/mapnik/hit_test_filter.hpp                            | 2 +-
 include/mapnik/renderer_common/process_polygon_symbolizer.hpp | 2 +-
 src/agg/process_line_symbolizer.cpp                           | 4 ++--
 src/agg/process_polygon_pattern_symbolizer.cpp                | 2 +-
 src/cairo/process_polygon_pattern_symbolizer.cpp              | 2 +-
 src/svg/output/process_symbolizers.cpp                        | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/mapnik/hit_test_filter.hpp b/include/mapnik/hit_test_filter.hpp
index cfc915ff4..156bb2c34 100644
--- a/include/mapnik/hit_test_filter.hpp
+++ b/include/mapnik/hit_test_filter.hpp
@@ -40,7 +40,7 @@ public:
 
     bool pass(feature_impl & feature)
     {
-        for (geometry_type & geom : feature.paths())
+        for (geometry_type const& geom : feature.paths())
         {
             vertex_adapter va(geom);
             if (label::hit_test(va, x_,y_,tol_))
diff --git a/include/mapnik/renderer_common/process_polygon_symbolizer.hpp b/include/mapnik/renderer_common/process_polygon_symbolizer.hpp
index fecff3585..f831b8780 100644
--- a/include/mapnik/renderer_common/process_polygon_symbolizer.hpp
+++ b/include/mapnik/renderer_common/process_polygon_symbolizer.hpp
@@ -58,7 +58,7 @@ void render_polygon_symbolizer(polygon_symbolizer const &sym,
     if (simplify_tolerance > 0.0) converter.template set<simplify_tag>(); // optional simplify converter
     if (smooth > 0.0) converter.template set<smooth_tag>(); // optional smooth converter
 
-    for (geometry_type & geom : feature.paths())
+    for (geometry_type const& geom : feature.paths())
     {
         if (geom.size() > 2)
         {
diff --git a/src/agg/process_line_symbolizer.cpp b/src/agg/process_line_symbolizer.cpp
index 23b9389f0..8ebbf0737 100644
--- a/src/agg/process_line_symbolizer.cpp
+++ b/src/agg/process_line_symbolizer.cpp
@@ -178,7 +178,7 @@ void agg_renderer<T0,T1>::process(line_symbolizer const& sym,
         if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
         if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
 
-        for (geometry_type & geom : feature.paths())
+        for (geometry_type const& geom : feature.paths())
         {
             if (geom.size() > 1)
             {
@@ -206,7 +206,7 @@ void agg_renderer<T0,T1>::process(line_symbolizer const& sym,
             converter.set<dash_tag>();
         converter.set<stroke_tag>(); //always stroke
 
-        for (geometry_type & geom : feature.paths())
+        for (geometry_type const& geom : feature.paths())
         {
             if (geom.size() > 1)
             {
diff --git a/src/agg/process_polygon_pattern_symbolizer.cpp b/src/agg/process_polygon_pattern_symbolizer.cpp
index 72fb144e5..6e4211254 100644
--- a/src/agg/process_polygon_pattern_symbolizer.cpp
+++ b/src/agg/process_polygon_pattern_symbolizer.cpp
@@ -168,7 +168,7 @@ void agg_renderer<T0,T1>::process(polygon_pattern_symbolizer const& sym,
     if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
     if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
 
-    for ( geometry_type & geom : feature.paths())
+    for ( geometry_type const& geom : feature.paths())
     {
         if (geom.size() > 2)
         {
diff --git a/src/cairo/process_polygon_pattern_symbolizer.cpp b/src/cairo/process_polygon_pattern_symbolizer.cpp
index 71454e2ae..b20d6bd99 100644
--- a/src/cairo/process_polygon_pattern_symbolizer.cpp
+++ b/src/cairo/process_polygon_pattern_symbolizer.cpp
@@ -112,7 +112,7 @@ void cairo_renderer<T>::process(polygon_pattern_symbolizer const& sym,
     if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
     if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
 
-    for ( geometry_type & geom : feature.paths())
+    for ( geometry_type const& geom : feature.paths())
     {
         if (geom.size() > 2)
         {
diff --git a/src/svg/output/process_symbolizers.cpp b/src/svg/output/process_symbolizers.cpp
index a2ebc8987..aab9d777c 100644
--- a/src/svg/output/process_symbolizers.cpp
+++ b/src/svg/output/process_symbolizers.cpp
@@ -97,7 +97,7 @@ bool svg_renderer<OutputIterator>::process(rule::symbolizers const& syms,
     if (process_path)
     {
         // generate path output for each geometry of the current feature.
-        for (auto & geom : feature.paths())
+        for (auto const& geom : feature.paths())
         {
             if(geom.size() > 0)
             {