use emplace_back instead of push_back

io/include/pcl/io/grabber.h

@@ -300,7 +300,7 @@ namespace pcl
     boost::signals2::connection ret = signal->connect (callback);
 
     connections_[typeid (T).name ()].push_back (ret);
-    shared_connections_[typeid (T).name ()].push_back (boost::signals2::shared_connection_block (connections_[typeid (T).name ()].back (), false));
+    shared_connections_[typeid (T).name ()].emplace_back (connections_[typeid (T).name ()].back (), false);
     signalsChanged ();
     return (ret);
   }

keypoints/src/narf_keypoint.cpp

@@ -555,7 +555,7 @@ NarfKeypoint::calculateSparseInterestImage ()
                                        static_cast<int> (pcl_lrint (std::floor ( (angle+deg2rad (90.0f))/deg2rad (180.0f) * angle_histogram_size))));
       float& histogram_value = angle_histogram[histogram_cell];
       histogram_value = (std::max) (histogram_value, surface_change_score);
-      angle_elements[histogram_cell].push_back (std::make_pair(index2, surface_change_score));
+      angle_elements[histogram_cell].emplace_back (index2, surface_change_score);
     }
 
     // Reset was_touched to false

recognition/src/ransac_based/model_library.cpp

@@ -173,7 +173,7 @@ ModelLibrary::addToHashTable (Model* model, const ORROctree::Node::Data* data1,
   HashTableCell* cell = hash_table_.getVoxel (key);
 
   // Insert the pair (data1,data2) belonging to 'model'
-  (*cell)[model].push_back (std::pair<const ORROctree::Node::Data*, const ORROctree::Node::Data*> (data1, data2));
+  (*cell)[model].emplace_back (data1, data2);
 
   return (true);
 }

test/outofcore/test_outofcore.cpp

@@ -445,7 +445,7 @@ TEST_F (OutofcoreTest, Outofcore_Constructors)
   AlignedPointTVector some_points;
 
   for (unsigned int i=0; i< numPts; i++)
-    some_points.push_back (PointT (static_cast<float>(rand () % 1024), static_cast<float>(rand () % 1024), static_cast<float>(rand () % 1024)));
+    some_points.emplace_back (static_cast<float>(rand () % 1024), static_cast<float>(rand () % 1024), static_cast<float>(rand () % 1024));
 
 
   //(Case 1)

tools/elch.cpp

@@ -126,7 +126,7 @@ main (int argc, char **argv)
   {
     CloudPtr pc (new Cloud);
     pcl::io::loadPCDFile (argv[pcd_indices[i]], *pc);
-    clouds.push_back (CloudPair (argv[pcd_indices[i]], pc));
+    clouds.emplace_back (argv[pcd_indices[i]], pc);
     std::cout << "loading file: " << argv[pcd_indices[i]] << " size: " << pc->size () << std::endl;
     elch.addPointCloud (clouds[i].second);
   }

tools/lum.cpp

@@ -85,7 +85,7 @@ main (int argc, char **argv)
   {
     CloudPtr pc (new Cloud);
     pcl::io::loadPCDFile (argv[pcd_indices[i]], *pc);
-    clouds.push_back (CloudPair (argv[pcd_indices[i]], pc));
+    clouds.emplace_back (argv[pcd_indices[i]], pc);
     std::cout << "loading file: " << argv[pcd_indices[i]] << " size: " << pc->size () << std::endl;
     lum.addPointCloud (clouds[i].second);
   }