From 5b8bbbe0a634de7c2479972cfbff99b3e65915e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20M=C3=A5rdbrink?= <hugo@mardbrink.se>
Date: Sat, 19 Apr 2025 20:12:38 +0200
Subject: [PATCH] Add copy functionality to dynamic array

---
 include/htd/data_structure/dynamic_array.h | 2 ++
 src/data_structure/dynamic_array.c         | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/include/htd/data_structure/dynamic_array.h b/include/htd/data_structure/dynamic_array.h
index 6af9a43..54f5a3c 100644
--- a/include/htd/data_structure/dynamic_array.h
+++ b/include/htd/data_structure/dynamic_array.h
@@ -17,6 +17,8 @@ void* dynarr_at(DynamicArray* arr, usize idx);
 
 void dynarr_set(DynamicArray* arr, usize idx, void* data);
 
+void dynarr_copy(DynamicArray* src, DynamicArray* dst);
+
 void dynarr_push(DynamicArray* arr, void* data);
 
 void dynarr_free(DynamicArray* arr);
diff --git a/src/data_structure/dynamic_array.c b/src/data_structure/dynamic_array.c
index 86df5e9..9e39f14 100644
--- a/src/data_structure/dynamic_array.c
+++ b/src/data_structure/dynamic_array.c
@@ -22,6 +22,14 @@ void dynarr_set(DynamicArray* arr, usize idx, void* data) {
     memcpy(&((u8*)arr->data)[arr->data_size * idx], data, arr->data_size);
 }
 
+void dynarr_copy(DynamicArray* src, DynamicArray* dst) {
+    dst->data_size = src->data_size;
+    dst->len = src->len;
+    dst->capacity = src->capacity;
+    dst->data = (void*)malloc(dst->capacity * dst->data_size);
+    memcpy(dst->data, src->data, dst->len * dst->data_size);
+}
+
 void* dynarr_last(DynamicArray* arr) {
     return &((u8*)arr->data)[arr->data_size * (arr->len - 1)];
 }