From 4202afc0bc3b8bab563175cbaedc38dce1c37766 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Tue, 1 Aug 2023 19:09:30 +0100
Subject: [PATCH] Use btree set for town names list

---
 src/townname_type.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/townname_type.h b/src/townname_type.h
index 2dc23567f0..811c8a118c 100644
--- a/src/townname_type.h
+++ b/src/townname_type.h
@@ -16,10 +16,10 @@
 #include "newgrf_townname.h"
 #include "town_type.h"
 #include "string_type.h"
-#include <set>
+#include "3rdparty/cpp-btree/btree_set.h"
 #include <string>
 
-typedef std::set<std::string> TownNames;
+typedef btree::btree_set<std::string> TownNames;
 
 static constexpr uint BUILTIN_TOWNNAME_GENERATOR_COUNT = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1; ///< Number of built-in town name generators.