From f18022b57e326db71ebbc7374f78d7fc6dce5d73 Mon Sep 17 00:00:00 2001
From: Joao Matos <joao@tritao.eu>
Date: Mon, 7 Dec 2020 00:56:15 +0000
Subject: [PATCH] Fix TU.FileRelativeDirectory to be more robust against some
 paths.

---
 src/AST/TranslationUnit.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/AST/TranslationUnit.cs b/src/AST/TranslationUnit.cs
index ee5b2dfa..206709fe 100644
--- a/src/AST/TranslationUnit.cs
+++ b/src/AST/TranslationUnit.cs
@@ -71,6 +71,9 @@ namespace CppSharp.AST
 
                 var path = IncludePath.Replace('\\', '/');
                 var index = path.LastIndexOf('/');
+                if (index == -1)
+                    return string.Empty;
+
                 return fileRelativeDirectory = path.Substring(0, index);
             }
         }