add array functionality

include/lsort.h

@@ -1,6 +1,6 @@
 #ifndef LSORT_H
 #define LSORT_H
 
-int add(int x, int y);
+
 
 #endif

include/types.h

@@ -0,0 +1,29 @@
+#ifndef LSORT_TYPES_H
+#define LSORT_TYPES_H
+
+#include <stddef.h>
+#include "string.h"
+
+typedef struct {
+    const char *buf;
+    size_t len;
+} lsort_string;
+
+typedef struct {
+    size_t count;
+    size_t capacity;
+    int* items;
+} lsort_int_array;
+
+lsort_int_array* lsort_create_int_array();
+void lsort_int_array_append(lsort_int_array* array, int number);
+int lsort_int_array_swap(lsort_int_array* array, int indexA, int indexB);
+
+
+// struct lsort_int_link {
+//     int value;
+//     lsort_int_array* next;
+// };
+
+
+#endif