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+/*************************************************************************/
+/* util_macros.h */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/*************************************************************************/
+
+#ifndef UTIL_MACROS_H
+#define UTIL_MACROS_H
+
+// noreturn
+
+#undef _NO_RETURN_
+
+#ifdef __GNUC__
+#define _NO_RETURN_ __attribute__((noreturn))
+#elif _MSC_VER
+#define _NO_RETURN_ __declspec(noreturn)
+#else
+#error Platform or compiler not supported
+#endif
+
+// unreachable
+
+#if defined(_MSC_VER)
+#define _UNREACHABLE_() __assume(0)
+#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
+#define _UNREACHABLE_() __builtin_unreachable()
+#else
+#define _UNREACHABLE_() \
+ CRASH_NOW(); \
+ do { \
+ } while (true);
+#endif
+
+#endif // UTIL_MACROS_H