From 7ba4b85a2309f3bbd8742803d5ebaa4b0baed6b6 Mon Sep 17 00:00:00 2001
From: Siarhei Fedartsou <siarhei.fedartsou@gmail.com>
Date: Fri, 28 Jun 2024 20:34:07 +0200
Subject: [PATCH] Micro performance optimisation in map matching

---
 src/engine/routing_algorithms/map_matching.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/engine/routing_algorithms/map_matching.cpp b/src/engine/routing_algorithms/map_matching.cpp
index 9f8a1d2a5..41f1f3405 100644
--- a/src/engine/routing_algorithms/map_matching.cpp
+++ b/src/engine/routing_algorithms/map_matching.cpp
@@ -401,6 +401,7 @@ SubMatchingList mapMatching(SearchEngineData<Algorithm> &engine_working_data,
         auto trace_distance = 0.0;
         matching.nodes.reserve(reconstructed_indices.size());
         matching.indices.reserve(reconstructed_indices.size());
+        matching.alternatives_count.reserve(reconstructed_indices.size());
         for (const auto &idx : reconstructed_indices)
         {
             const auto timestamp_index = idx.first;
@@ -428,7 +429,7 @@ SubMatchingList mapMatching(SearchEngineData<Algorithm> &engine_working_data,
 
         matching.confidence = confidence(trace_distance, matching_distance);
 
-        sub_matchings.push_back(matching);
+        sub_matchings.emplace_back(std::move(matching));
         sub_matching_begin = sub_matching_end;
     }