diff --git a/lib/std/core/array.c3 b/lib/std/core/array.c3
new file mode 100644
index 000000000..831d6d152
--- /dev/null
+++ b/lib/std/core/array.c3
@@ -0,0 +1,32 @@
+module std::core::array;
+import std::core::mem::array;
+
+macro tconcat(arr1, arr2)
+{
+	var $Type = $typeof(arr1[0]);
+	$Type[] result = mem::array::talloc($Type, arr1.len + arr2.len);
+	if (arr1.len > 0)
+	{
+		mem::copy(result.ptr, &arr1[0], arr1.len * $Type.sizeof, $alignof($Type), $alignof($Type));
+	}
+	if (arr2.len > 0)
+	{
+		mem::copy(&result[arr1.len], &arr2[0], arr2.len * $Type.sizeof, $alignof($Type), $alignof($Type));
+	}
+	return result;
+}
+
+macro concat(arr1, arr2)
+{
+	var $Type = $typeof(arr1[0]);
+	$Type[] result = mem::array::alloc($Type, arr1.len + arr2.len);
+	if (arr1.len > 0)
+	{
+		mem::copy(result.ptr, &arr1[0], arr1.len * $Type.sizeof, $alignof($Type), $alignof($Type));
+	}
+	if (arr2.len > 0)
+	{
+		mem::copy(&result[arr1.len], &arr2[0], arr2.len * $Type.sizeof, $alignof($Type), $alignof($Type));
+	}
+	return result;
+}
\ No newline at end of file