From 10d7b7c72bc243e4e6da0546f9d17e39460df55c Mon Sep 17 00:00:00 2001
From: Yutaka Kondo <yutaka.kondo@youtalk.jp>
Date: Wed, 13 Feb 2019 11:02:29 +0900
Subject: [PATCH] replace 'auto' to 'const auto &' (#630)

Signed-off-by: Yutaka Kondo <yutaka.kondo@youtalk.jp>
---
 rclcpp/src/rclcpp/node_interfaces/node_parameters.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/rclcpp/src/rclcpp/node_interfaces/node_parameters.cpp b/rclcpp/src/rclcpp/node_interfaces/node_parameters.cpp
index 37588b2b31..8c4d14b94c 100644
--- a/rclcpp/src/rclcpp/node_interfaces/node_parameters.cpp
+++ b/rclcpp/src/rclcpp/node_interfaces/node_parameters.cpp
@@ -177,7 +177,7 @@ NodeParameters::set_parameters(
   const std::vector<rclcpp::Parameter> & parameters)
 {
   std::vector<rcl_interfaces::msg::SetParametersResult> results;
-  for (auto p : parameters) {
+  for (const auto & p : parameters) {
     auto result = set_parameters_atomically({{p}});
     results.push_back(result);
   }
@@ -206,7 +206,7 @@ NodeParameters::set_parameters_atomically(
     return result;
   }
 
-  for (auto p : parameters) {
+  for (const auto & p : parameters) {
     if (p.get_type() == rclcpp::ParameterType::PARAMETER_NOT_SET) {
       if (parameters_.find(p.get_name()) != parameters_.end()) {
         // case: parameter was set before, and input is "NOT_SET"
@@ -229,7 +229,7 @@ NodeParameters::set_parameters_atomically(
   tmp_map.insert(parameters_.begin(), parameters_.end());
 
   // remove explicitly deleted parameters
-  for (auto p : parameters) {
+  for (const auto & p : parameters) {
     if (p.get_type() == rclcpp::ParameterType::PARAMETER_NOT_SET) {
       tmp_map.erase(p.get_name());
     }