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-rw-r--r--malloclab-handout/mm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/malloclab-handout/mm.h b/malloclab-handout/mm.h
index 7cd95f7..021247d 100644
--- a/malloclab-handout/mm.h
+++ b/malloclab-handout/mm.h
@@ -1,3 +1,5 @@
+#pragma once
+
#include <stdio.h>
#ifdef __cplusplus