Arrays

include/ci2.h

@@ -26,6 +26,7 @@ SOFTWARE.
 #include "./platform/ci2_platform.h"
 #include "./platform/error/ci2_exception.h"
 
+#include "./platform/dsa/ci2_array.h"
 #include "./platform/mem/ci2_arena.h"
 #include "./platform/mem/ci2_mem.h"
 

include/platform/dsa/ci2_array.h

@@ -0,0 +1,79 @@
+/* - | Copyright | ------------------------------------------------------------
+   Copyright (c) 2026 Randy Jordan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+ * --------------------------------------------------------------------------*/
+#ifndef CI2_ARRAY_H
+#define CI2_ARRAY_H
+
+#include "../ci2_platform.h"
+#include <stdbool.h>
+#include <stddef.h> /* size_t */
+#include <stdint.h> /* uintptr_t */
+
+#define ARRAY_INIT_CAPACITY 4
+
+typedef struct Array
+{
+  void** items;
+  size_t cap;
+  size_t len;
+} Array;
+
+/* Initialize an array */
+CI2_DEF void
+ci2_array_init(struct Array* v);
+
+/* Free the array items and set to 0.  */
+CI2_DEF void
+ci2_array_free(struct Array* v);
+
+/* Get the current number of items. */
+CI2_DEF size_t
+ci2_array_len(const struct Array* v);
+
+/* Get the current capacity of the array. */
+CI2_DEF size_t
+ci2_array_capacity(const struct Array* v);
+
+CI2_DEF int
+ci2_array_shrink_to_fit(Array* v);
+
+/* Add item to end of array. */
+CI2_DEF int
+ci2_array_add(struct Array* v, void* item);
+
+/* Set the item of an array at the given index */
+CI2_DEF int
+ci2_array_set(Array* v, size_t index, void* item);
+
+/* Get an item of an array at an index. */
+CI2_DEF void*
+ci2_array_get(const struct Array* v, size_t index);
+
+/* Remove element (does not free). Returns 0 on success, -1 out-of-range */
+CI2_DEF int
+ci2_array_remove(struct Array* v, size_t index);
+
+/* Clear all elements; if destructor non-NULL it will be called on each item */
+CI2_DEF void
+ci2_array_destroy(struct Array* v, void (*destructor)(void*));
+
+#endif // ci2_array.h