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-rw-r--r--examples/diagrams_c.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/examples/diagrams_c.h b/examples/diagrams_c.h
index e4ec11d..ff649b4 100644
--- a/examples/diagrams_c.h
+++ b/examples/diagrams_c.h
@@ -1,5 +1,5 @@
-#ifndef _DIAGRAMS_C_H
-#define _DIAGRAMS_C_H
+#ifndef DIAGRAMS_C_H
+#define DIAGRAMS_C_H
#include "diagrams_c.h"
class D;
class C : public A { public: D *m_d; };