From 5625a8626fe303748b205c80f87035593cf2f561 Mon Sep 17 00:00:00 2001
From: iamcheeseman <dev@iamcheeseman.net>
Date: Fri, 8 May 2026 19:30:44 -0400
Subject: Initial commit

---
 teensy/dyn_arr.h | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 teensy/dyn_arr.h

(limited to 'teensy/dyn_arr.h')

diff --git a/teensy/dyn_arr.h b/teensy/dyn_arr.h
new file mode 100644
index 0000000..7a45d4e
--- /dev/null
+++ b/teensy/dyn_arr.h
@@ -0,0 +1,33 @@
+#ifndef DYN_ARR_H_
+#define DYN_ARR_H_
+
+#include "common.h"
+
+#define TY_LIST_MIN_CAP 8
+#define TY_LIST_GROW_RATE 2
+
+#define ty_list_create(T, init_capacity) \
+    ((T*)_ty_list_create(sizeof(T), init_capacity))
+
+#define ty_list_len_ptr(arr) ((int*)arr - 2)
+#define ty_list_len(arr) (*ty_list_len_ptr(arr))
+
+#define ty_list_cap_ptr(arr) ((int*)arr - 1)
+#define ty_list_cap(arr) (*ty_list_cap_ptr(arr))
+
+#define ty_list_base(arr) ((void*)ty_list_len_ptr(arr))
+
+#define ty_list_append_slot(T, arr) \
+    ((T*)_ty_list_append_slot(sizeof(T), (void**)arr))
+
+#define ty_list_append(T, arr, elem) \
+    (*ty_list_append_slot(T, arr) = elem)
+
+#define ty_list_clear(arr) \
+    (*ty_list_len_ptr(arr) = 0)
+
+void *_ty_list_create(size_t type_size, int init_cap);
+void *_ty_list_append_slot(size_t type_size, void **arr);
+void ty_list_free(void *arr);
+
+#endif // DYN_ARR_H_
-- 
cgit v1.3-2-g0d8e