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-rw-r--r--inc/dnbd3/types.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/inc/dnbd3/types.h b/inc/dnbd3/types.h
index 699fa68..bd15f4e 100644
--- a/inc/dnbd3/types.h
+++ b/inc/dnbd3/types.h
@@ -30,6 +30,7 @@
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
+#define container_of( ptr, type, member ) ( (type *)( (char *)( ptr ) - (char *)&( ( (type *)NULL )->member ) ) )
#endif
#ifndef MIN