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/*************************************************************************/
/* macros.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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
#define _GD_VARNAME_CONCAT_B_(m_ignore, m_name) m_name
#define _GD_VARNAME_CONCAT_A_(m_a, m_b, m_c) _GD_VARNAME_CONCAT_B_(hello there, m_a##m_b##m_c)
#define _GD_VARNAME_CONCAT_(m_a, m_b, m_c) _GD_VARNAME_CONCAT_A_(m_a, m_b, m_c)
#define GD_UNIQUE_NAME(m_name) _GD_VARNAME_CONCAT_(m_name, _, __COUNTER__)
// static assert
// TODO: Get rid of this macro once we upgrade to C++11
#ifdef __cpp_static_assert
#define GD_STATIC_ASSERT(m_cond) static_assert((m_cond), "Condition '" #m_cond "' failed")
#else
#define GD_STATIC_ASSERT(m_cond) typedef int GD_UNIQUE_NAME(godot_static_assert)[((m_cond) ? 1 : -1)]
#endif
// final
// TODO: Get rid of this macro once we upgrade to C++11
#if (__cplusplus >= 201103L)
#define GD_FINAL final
#else
#define GD_FINAL
#endif
// noreturn
// TODO: Get rid of this macro once we upgrade to C++11
#if (__cplusplus >= 201103L)
#define GD_NORETURN [[noreturn]]
#elif defined(__GNUC__)
#define GD_NORETURN __attribute__((noreturn))
#elif defined(_MSC_VER)
#define GD_NORETURN __declspec(noreturn)
#else
#define GD_NORETURN
#pragma message "Macro GD_NORETURN will have no effect"
#endif
// unreachable
#if defined(_MSC_VER)
#define GD_UNREACHABLE() __assume(0)
#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
#define GD_UNREACHABLE() __builtin_unreachable()
#else
#define GD_UNREACHABLE() \
CRASH_NOW(); \
do { \
} while (true);
#endif
#endif // UTIL_MACROS_H
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