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-rw-r--r--src/timer.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/timer.h b/src/timer.h
index 904bd6a..bee777b 100644
--- a/src/timer.h
+++ b/src/timer.h
@@ -1,7 +1,7 @@
//https://github.com/zuqqhi2/numerical_simulation/blob/master/multithread/laytrace/timer.h
-#ifndef _H_TIMER
-#define _H_TIMER
+#ifndef TIMER_H_
+#define TIMER_H_
#include <stdio.h>
#include <sys/time.h>