From cee84115b9d4c7c05d1bed5a9100ae28b1822f0a Mon Sep 17 00:00:00 2001
From: Blake-Madden <66873089+Blake-Madden@users.noreply.github.com>
Date: Fri, 31 May 2024 09:16:45 -0400
Subject: [PATCH] If mapped file size is reported as zero, then throw as an
 empty file exception

---
 src/util/memorymappedfile.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/util/memorymappedfile.cpp b/src/util/memorymappedfile.cpp
index 194fc4fe..c2aaf837 100644
--- a/src/util/memorymappedfile.cpp
+++ b/src/util/memorymappedfile.cpp
@@ -152,6 +152,11 @@ bool MemoryMappedFile::MapFile(const wxString& filePath,
             m_open = true;
             return true;
             }
+        else if (m_mapSize == 0)
+            {
+            Reset();
+            throw MemoryMappedFileEmptyException();
+            }
         else
             {
             Reset();