From 6053ed9452027befdde5beceb3c75e3eaa26e75d Mon Sep 17 00:00:00 2001
From: deanlee <deanlee3@gmail.com>
Date: Wed, 11 Sep 2024 01:48:28 +0800
Subject: [PATCH] Use std::move for Efficient Observation Rewind

---
 rednose/helpers/ekf_sym.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rednose/helpers/ekf_sym.cc b/rednose/helpers/ekf_sym.cc
index 38d419d..a191e3e 100644
--- a/rednose/helpers/ekf_sym.cc
+++ b/rednose/helpers/ekf_sym.cc
@@ -127,7 +127,7 @@ std::deque<Observation> EKFSym::rewind(double t) {
 
   // rewind observations until t is after previous observation
   while (this->rewind_t.back() > t) {
-    rewound.push_front(this->rewind_obscache.back());
+    rewound.push_front(std::move(this->rewind_obscache.back()));
     this->rewind_t.pop_back();
     this->rewind_states.pop_back();
     this->rewind_obscache.pop_back();