pkiter: add iterator for pkarr and pkbktarr

1 files changed, 28 insertions, 0 deletions

diff --git a/pkiter.h b/pkiter.h
new file mode 100644
index 0000000..db7f451
--- /dev/null
+++ b/pkiter.h
@@ -0,0 +1,28 @@
+#ifndef PK_PKITER_H
+#define PK_PKITER_H
+
+union pk_iter_id {
+	struct pk_iter_bkt_handle {
+		unsigned int b : 24;
+		unsigned int i : 8;
+	} bkt;
+	struct pk_iter_arr_idx {
+		unsigned int i : 32;
+	} arr;
+};
+
+struct pk_iter {
+	void *data;
+	union pk_iter_id id;
+};
+
+#if defined (__cplusplus)
+template <typename T>
+struct pk_iter_t : public pk_iter {
+	operator T&() {
+		return *reinterpret_cast<T*>(this->data);
+	}
+};
+#endif
+
+#endif /* PK_PKITER_H */