1 files changed, 43 insertions, 0 deletions
diff --git a/array.c b/array.c
new file mode 100644
index 0000000..aa25e93
--- /dev/null
+++ b/array.c
@@ -0,0 +1,43 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "array.h"
+
+
+array_info* array_new_(size_t item_size, size_t capacity) {
+    array_info* info = calloc(1, sizeof(array_info) + item_size * capacity);
+    info->capacity = capacity;
+    return info;
+}
+
+void* array_add_(void* array, size_t item_size) {
+    array_info* info = NULL;
+    if (!array) {
+        info = array_new_(item_size, 8);
+    }
+    else {
+        info = ((array_info*)array) - 1;
+    }
+    if (info->size == info->capacity) {
+        info->capacity <<= 1;
+        info = realloc(info, sizeof(array_info) + (info->capacity * item_size));
+    }
+    info->size++;
+    return &(info[1]);
+}
+
+void array_print(void* array) {
+    array_info* info = &((array_info*)array)[-1];
+    printf( "size: %lu\n"
+           "capacity: %lu\n"
+           "array: %p\n",
+           info->size,
+           info->capacity,
+           info->array);
+}
+
+void array_pop(void* array) {
+    array_info* info = &((array_info*)array)[-1];
+    if (info->size)
+        info->size--;
+}