From da792dda8a4cef4368afc1bb8656c0745f0cf427 Mon Sep 17 00:00:00 2001
From: lucielle <luci@git.lunarware.tech>
Date: Sun, 14 Jun 2026 07:41:14 -0500
Subject: [PATCH] add array swap

---
 include/larray.h | 11 +++++++++++
 test/array.c     |  6 +++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/larray.h b/include/larray.h
index 17f294f..03c7aa5 100644
--- a/include/larray.h
+++ b/include/larray.h
@@ -12,6 +12,7 @@ typedef struct {
 LArray* l_array_create();
 void l_array_delete(LArray* array);
 int l_array_append(LArray* array, void* item);
+int l_array_swap(LArray* array, int indexA, int indexB);
 void l_array_clear(LArray* array);
 
 #ifdef L_ARRAY_IMPLEMENTATION
@@ -38,6 +39,16 @@ int l_array_append(LArray* array, void* item) {
     return 0;
 }
 
+int l_array_swap(LArray* array, int indexA, int indexB) {
+    if (array->count < (size_t)indexA || array->count < (size_t)indexB || indexA == indexB) return 1;
+
+    void* itemA = array->items[indexA];
+    array->items[indexA] = array->items[indexB];
+    array->items[indexB] = itemA;
+
+    return 0;
+}
+
 void l_array_clear(LArray* array) {
     free(array->items);
     array->items = NULL;
diff --git a/test/array.c b/test/array.c
index 386a9cd..b720d25 100644
--- a/test/array.c
+++ b/test/array.c
@@ -1,5 +1,5 @@
 #define L_ARRAY_IMPLEMENTATION
-#include "../include/array.h"
+#include "../include/larray.h"
 #include <stdio.h>
 
 int test_l_array() {
@@ -19,6 +19,10 @@ int test_l_array() {
     if (array->count != 2) RETURN_CODE++;
     if (array->capacity != 8) RETURN_CODE++;
 
+    l_array_swap(array, 0, 1);
+    if (*(int*)array->items[0] != 5) RETURN_CODE++;
+    if (*(int*)array->items[1] != 15) RETURN_CODE++;
+
     l_array_clear(array);
     if (array->items != NULL) RETURN_CODE++;