Extend the reasoning for the capacity mismatch (#2723)

saikishor · web-flow · commit db10bd6b0b6b · 2025-11-05T18:26:59.000Z
diff --git a/controller_interface/include/controller_interface/helpers.hpp b/controller_interface/include/controller_interface/helpers.hpp
@@ -55,7 +55,9 @@ bool get_ordered_interfaces(
     throw std::range_error(
       "Capacity of ordered_interfaces (" + std::to_string(ordered_interfaces.capacity()) +
       ") has to be equal or higher as size of ordered_names (" +
-      std::to_string(ordered_names.size()) + ") for realtime reasons.");
+      std::to_string(ordered_names.size()) +
+      ") for realtime reasons. Please reserve sufficient space in the on_configure method to avoid "
+      "allocating memory in real-time loop.");
   }
   for (const auto & name : ordered_names)
   {

Original file line number	Diff line number	Diff line change
`@@ -55,7 +55,9 @@ bool get_ordered_interfaces(`
`55`	`55`	`throw std::range_error(`
`56`	`56`	`"Capacity of ordered_interfaces (" + std::to_string(ordered_interfaces.capacity()) +`
`57`	`57`	`") has to be equal or higher as size of ordered_names (" +`
`58`		`- std::to_string(ordered_names.size()) + ") for realtime reasons.");`
	`58`	`+ std::to_string(ordered_names.size()) +`
	`59`	`+ ") for realtime reasons. Please reserve sufficient space in the on_configure method to avoid "`
	`60`	`+ "allocating memory in real-time loop.");`
`59`	`61`	`}`
`60`	`62`	`for (const auto & name : ordered_names)`
`61`	`63`	`{`