From 2bc3cc5b673b437fbaef279795c8d349a98d7656 Mon Sep 17 00:00:00 2001
From: ladysadie <144490006+ladysadie@users.noreply.github.com>
Date: Sat, 15 Jun 2024 23:54:41 -0700
Subject: [PATCH] Codechange: Compiler check for _fios_colours/DetailedFileType
 (#12781)

---
 src/fileio_type.h | 2 ++
 src/fios_gui.cpp  | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/fileio_type.h b/src/fileio_type.h
index c871c1c14b..a353e12b8a 100644
--- a/src/fileio_type.h
+++ b/src/fileio_type.h
@@ -40,6 +40,8 @@ enum DetailedFileType {
 	DFT_FIOS_DIR,    ///< A directory entry.
 	DFT_FIOS_DIRECT, ///< Direct filename.
 
+	DFT_END,         ///< End of this enum. Supports a compile time size check against _fios_colours in fios_gui.cpp
+
 	DFT_INVALID = 255, ///< Unknown or invalid file.
 };
 
diff --git a/src/fios_gui.cpp b/src/fios_gui.cpp
index bea51f9851..993d331a55 100644
--- a/src/fios_gui.cpp
+++ b/src/fios_gui.cpp
@@ -238,7 +238,8 @@ static const TextColour _fios_colours[] = {
 	TC_DARK_GREEN,   // DFT_FIOS_DIR
 	TC_ORANGE,       // DFT_FIOS_DIRECT
 };
-
+/* This should align with the DetailedFileType enum defined in fileio_type.h */
+static_assert(std::size(_fios_colours) == DFT_END);
 
 /**
  * Sort the collected list save games prior to displaying it in the save/load gui.