- Started setting up a thread safe window manager

- Created thread & atomic structures

test/tests/lang/test_function.h

@@ -0,0 +1,64 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 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 General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file test_function.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_TEST_LANG_FUNCTION_H
+#define FENNEC_TEST_LANG_FUNCTION_H
+
+#include "../../test.h"
+
+#include <fennec/lang/function.h>
+
+namespace fennec::test
+{
+
+inline bool fennec_test_lang_function_test() {
+	return true;
+}
+
+inline void fennec_test_lang_function() {
+	function<bool()> test;
+
+	fennec_test_run((bool)(test = fennec_test_lang_function_test), true);
+	fennec_test_run(test(), true);
+
+	fennec_test_spacer(1);
+
+	fennec_test_run((bool)(test = []() { return true; }), true);
+	fennec_test_run(test(), true);
+
+	fennec_test_spacer(1);
+
+	fennec_test_run((bool)(test = nullptr), false);
+}
+
+}
+
+#endif // FENNEC_TEST_LANG_FUNCTION_H