From d1a3bf15d4c085c96a7e6c8cbe0277bc35f4d618 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Fri, 20 Feb 2026 20:19:32 +0300
Subject: [PATCH] Fix util::ndarray::copy() in case of an empty array

---
 libs/util/include/psemek/util/ndarray.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/util/include/psemek/util/ndarray.hpp b/libs/util/include/psemek/util/ndarray.hpp
index 6e629d48..ff145d09 100644
--- a/libs/util/include/psemek/util/ndarray.hpp
+++ b/libs/util/include/psemek/util/ndarray.hpp
@@ -379,6 +379,9 @@ namespace psemek::util
 	template <typename T, std::size_t N>
 	ndarray<T, N> ndarray<T, N>::copy() const
 	{
+		if (empty())
+			return {};
+
 		std::unique_ptr<T[]> data(new T[size()]);
 		std::copy(begin(), end(), data.get());
 		return ndarray{dims_, std::move(data)};