From 9154cf343decf2489fec38bdf0958e687921d636 Mon Sep 17 00:00:00 2001
From: Corentin Le Molgat <corentinl@google.com>
Date: Fri, 13 Oct 2023 15:59:39 +0200
Subject: [PATCH] constraint_solver: Fix macos clang build (Fix #3953)

---
 ortools/constraint_solver/routing_search.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ortools/constraint_solver/routing_search.cc b/ortools/constraint_solver/routing_search.cc
index 465c444b270..4191e50ad8d 100644
--- a/ortools/constraint_solver/routing_search.cc
+++ b/ortools/constraint_solver/routing_search.cc
@@ -583,7 +583,8 @@ CheapestInsertionFilteredHeuristic::ComputeStartEndDistanceForVehicles(
     std::vector<StartEndValue>& start_end_distances =
         start_end_distances_per_node[node];
     start_end_distances.reserve(
-        std::min(model.VehicleVar(node)->Size(), vehicles.size()));
+        std::min(model.VehicleVar(node)->Size(),
+                 static_cast<uint64_t>(vehicles.size())));
 
     ProcessVehicleStartEndCosts(
         model, node,