Allow printing irr::core::vector[23]d directly to an std::ostream

src/irrlicht_changes/printing.h

@@ -0,0 +1,39 @@
+/*
+Minetest
+Copyright (C) 2023 Vitaliy Lobachevskiy
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+#include <ostream>
+#include <vector2d.h>
+#include <vector3d.h>
+
+namespace irr::core {
+
+	template <class T>
+	std::ostream &operator<< (std::ostream &os, vector2d<T> vec)
+	{
+		return os << "(" << vec.X << "," << vec.Y << ")";
+	}
+
+	template <class T>
+	std::ostream &operator<< (std::ostream &os, vector3d<T> vec)
+	{
+		return os << "(" << vec.X << "," << vec.Y << "," << vec.Z << ")";
+	}
+
+}