From 2e2df097904dbc92b29baa383e3645e58fe46f72 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Mon, 12 Jun 2023 14:35:39 +0300
Subject: [PATCH] Add geom::concat

---
 libs/geom/include/psemek/geom/concat.hpp | 26 ++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 libs/geom/include/psemek/geom/concat.hpp

diff --git a/libs/geom/include/psemek/geom/concat.hpp b/libs/geom/include/psemek/geom/concat.hpp
new file mode 100644
index 00000000..cb5e3080
--- /dev/null
+++ b/libs/geom/include/psemek/geom/concat.hpp
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <psemek/geom/vector.hpp>
+
+namespace psemek::geom
+{
+
+	template <typename T, std::size_t ... Ns>
+	auto concat(vector<T, Ns> const & ... vs)
+	{
+		vector<T, (Ns + ...)> result;
+
+		std::size_t i = 0;
+
+		auto apply = [&]<std::size_t N>(vector<T, N> const & v)
+		{
+			for (std::size_t j = 0; j < N;)
+				result[i++] = v[j++];
+		};
+
+		(apply(vs), ...);
+
+		return result;
+	}
+
+}