From ece2d9b83ae45d52bc4472f3a66ad3a9e9321e8d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=98yvind?= <oyvindskaaden@gmail.com>
Date: Sun, 3 Apr 2022 22:42:13 +0200
Subject: [PATCH] fixed a bug with removing a node it shouldn't

---
 exercises/05/vslc/src/tree.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/exercises/05/vslc/src/tree.c b/exercises/05/vslc/src/tree.c
index 00a376e..b17d8cd 100644
--- a/exercises/05/vslc/src/tree.c
+++ b/exercises/05/vslc/src/tree.c
@@ -273,9 +273,13 @@ resolve_constant_expressions(node_t **simplified, node_t *root)
                 *((int64_t*)result->data) = ~*((int64_t*)result->data);
                 break;
             }
+            node_finalize(root);
         }
+        else if (!root->data)
+            node_finalize(root);
+        else
+            result = root;
 
-        node_finalize(root);
         break;
     
     case 2: