file io, compression

1 files changed, 1 insertions, 0 deletions

diff --git a/memory.h b/memory.h
index 5f15bca..f4460ed 100644
--- a/memory.h
+++ b/memory.h
@@ -34,6 +34,7 @@ struct global_memory {
 
 enum history_action_type {
     action_type_swap,
+    action_type_swap_bitmap,
     action_type_shift
 };