1 files changed, 24 insertions, 0 deletions
diff --git a/src/bitfield.h b/src/bitfield.h
new file mode 100644
index 0000000..034e439
--- /dev/null
+++ b/src/bitfield.h
@@ -0,0 +1,24 @@
+#pragma once
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "util_ct.h"
+
+// This macro accepts zero
+#define prne_bf_get_size(nb_bits)\
+	((nb_bits) % 8 == 0 ? (nb_bits) / 8 : (nb_bits) / 8 + 1)
+
+typedef void(*prne_bf_foreach_ft)(
+	void *ctx,
+	const unsigned int bit,
+	const bool v);
+
+
+void prne_bf_set (uint8_t *bf, const unsigned int bit, const bool v);
+bool prne_bf_test (const uint8_t *bf, const unsigned int bit);
+void prne_bf_foreach (
+	void *ctx,
+	const uint8_t *bf,
+	const size_t size,
+	prne_bf_foreach_ft f);