From 8986fb0385a113ee2ca1c0a18a24a5dfc19678de Mon Sep 17 00:00:00 2001
From: Rubidium <rubidium@openttd.org>
Date: Sun, 7 Apr 2024 22:38:36 +0200
Subject: [PATCH] Codechange: replace C-style array-pointer methods with the
 appropriate C++ methods

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

diff --git a/src/newgrf_airport.h b/src/newgrf_airport.h
index 45b2244bd7..9fb5348c0a 100644
--- a/src/newgrf_airport.h
+++ b/src/newgrf_airport.h
@@ -130,8 +130,8 @@ struct AirportSpec {
 	/** Get the index of this spec. */
 	uint8_t GetIndex() const
 	{
-		assert(this >= specs && this < endof(specs));
-		return (uint8_t)(this - specs);
+		assert(this >= std::begin(specs) && this < std::end(specs));
+		return static_cast<uint8_t>(std::distance(std::cbegin(specs), this));
 	}
 
 	static const AirportSpec dummy; ///< The dummy airport.