1 files changed, 22 insertions, 0 deletions
diff --git a/src/iset.h b/src/iset.h
new file mode 100644
index 0000000..acc8f14
--- /dev/null
+++ b/src/iset.h
@@ -0,0 +1,22 @@
+#pragma once
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+
+typedef struct prne_iset prne_iset_t;
+typedef uintptr_t prne_iset_val_t;
+
+struct prne_iset {
+	prne_iset_val_t *arr;
+	size_t size;
+};
+
+
+void prne_init_iset (prne_iset_t *s);
+void prne_free_iset (prne_iset_t *s);
+
+void prne_iset_clear (prne_iset_t *s);
+bool prne_iset_insert (prne_iset_t *s, const prne_iset_val_t v);
+void prne_iset_erase (prne_iset_t *s, const prne_iset_val_t v);
+bool prne_iset_lookup (prne_iset_t *s, const prne_iset_val_t v);