From efa47546ab4508e5a9b46ba164fa8d8ecf3dfe69 Mon Sep 17 00:00:00 2001
From: William Woodall <william+github@osrfoundation.org>
Date: Tue, 31 Mar 2020 09:00:09 -0700
Subject: [PATCH] fixup clang warning (#1040)

Signed-off-by: William Woodall <william@osrfoundation.org>
---
 rclcpp/include/rclcpp/strategies/allocator_memory_strategy.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rclcpp/include/rclcpp/strategies/allocator_memory_strategy.hpp b/rclcpp/include/rclcpp/strategies/allocator_memory_strategy.hpp
index bc703f5..bffd399 100644
--- a/rclcpp/include/rclcpp/strategies/allocator_memory_strategy.hpp
+++ b/rclcpp/include/rclcpp/strategies/allocator_memory_strategy.hpp
@@ -194,7 +194,7 @@ public:
     return has_invalid_weak_nodes;
   }
 
-  void add_waitable_handle(const rclcpp::Waitable::SharedPtr & waitable)
+  void add_waitable_handle(const rclcpp::Waitable::SharedPtr & waitable) override
   {
     if (nullptr == waitable) {
       throw std::runtime_error("waitable object unexpectedly nullptr");