decltype(auto) return type

sloretz · sloretz · commit f8646d018123 · 2018-05-31T16:17:06.000-07:00
diff --git a/rclcpp/include/rclcpp/parameter.hpp b/rclcpp/include/rclcpp/parameter.hpp
@@ -62,15 +62,15 @@ class Parameter
 
   /// Get value of parameter using rclcpp::ParameterType as template argument.
   template<ParameterType ParamT>
-  decltype(ParameterValue().get<ParamT>())
+  decltype(auto)
   get_value() const
   {
     return value_.get<ParamT>();
   }
 
   /// Get value of parameter using c++ types as template argument
   template<typename T>
-  decltype(ParameterValue().get<T>())
+  decltype(auto)
   get_value() const
   {
     return value_.get<T>();

Original file line number	Diff line number	Diff line change
`@@ -62,15 +62,15 @@ class Parameter`
`62`	`62`
`63`	`63`	`/// Get value of parameter using rclcpp::ParameterType as template argument.`
`64`	`64`	`template<ParameterType ParamT>`
`65`		`- decltype(ParameterValue().get<ParamT>())`
	`65`	`+ decltype(auto)`
`66`	`66`	`get_value() const`
`67`	`67`	`{`
`68`	`68`	`return value_.get<ParamT>();`
`69`	`69`	`}`
`70`	`70`
`71`	`71`	`/// Get value of parameter using c++ types as template argument`
`72`	`72`	`template<typename T>`
`73`		`- decltype(ParameterValue().get<T>())`
	`73`	`+ decltype(auto)`
`74`	`74`	`get_value() const`
`75`	`75`	`{`
`76`	`76`	`return value_.get<T>();`