1 files changed, 13 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..110aae7
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef UTIL_H
+#define UTIL_H
+
+#define SET_BIT(b, n) (b | (0x1 << n))
+#define CLEAR_BIT(b, n) (b & ~(0x1 << n))
+#define IS_BIT_SET(b, n) ((b >> n) & 0x1)
+#define TOGGLE_BIT(b, n) (b ^ (0x1 << n))
+#define HAS_FLAG(v, f) ((v & f) == f)
+
+#endif