From ee7df74fa1c2e16a1ad5c5fb0835842851b625bc Mon Sep 17 00:00:00 2001
From: Sadie del Solar <me@sadiedelsolar.com>
Date: Mon, 29 Apr 2024 12:40:07 -0700
Subject: [PATCH] Add: Compiler check for _fios_colours/DetailFileType

---
 src/fileio_type.h | 3 +++
 src/fios_gui.cpp  | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/fileio_type.h b/src/fileio_type.h
index c871c1c14b..e5955fb90a 100644
--- a/src/fileio_type.h
+++ b/src/fileio_type.h
@@ -40,6 +40,9 @@ enum DetailedFileType {
 	DFT_FIOS_DIR,    ///< A directory entry.
 	DFT_FIOS_DIRECT, ///< Direct filename.
 
+	/* Ending variable used for compile time check of this array against _fios_colours in fiose_gui.cpp */
+	DFT_END,
+
 	DFT_INVALID = 255, ///< Unknown or invalid file.
 };
 
diff --git a/src/fios_gui.cpp b/src/fios_gui.cpp
index bf7812570e..196dde02c7 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 (lengthof(_fios_colours) == DFT_END);
 
 /**
  * Sort the collected list save games prior to displaying it in the save/load gui.