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/**************************************************************************/
/* defs.hpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 GODOT_DEFS_HPP
#define GODOT_DEFS_HPP
#include <cstddef>
#include <cstdint>
#include <cstring>
#if !defined(GDE_EXPORT)
#if defined(_WIN32)
#define GDE_EXPORT __declspec(dllexport)
#elif defined(__GNUC__)
#define GDE_EXPORT __attribute__((visibility("default")))
#else
#define GDE_EXPORT
#endif
#endif
// Turn argument to string constant:
// https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html#Stringizing
#ifndef _STR
#define _STR(m_x) #m_x
#define _MKSTR(m_x) _STR(m_x)
#endif
// Should always inline no matter what.
#ifndef _ALWAYS_INLINE_
#if defined(__GNUC__)
#define _ALWAYS_INLINE_ __attribute__((always_inline)) inline
#elif defined(_MSC_VER)
#define _ALWAYS_INLINE_ __forceinline
#else
#define _ALWAYS_INLINE_ inline
#endif
#endif
// Should always inline, except in debug builds because it makes debugging harder.
#ifndef _FORCE_INLINE_
#ifdef DISABLE_FORCED_INLINE
#define _FORCE_INLINE_ inline
#else
#define _FORCE_INLINE_ _ALWAYS_INLINE_
#endif
#endif
#ifndef _NO_DISCARD_
#define _NO_DISCARD_ [[nodiscard]]
#endif
// Windows badly defines a lot of stuff we'll never use. Undefine it.
#ifdef _WIN32
#undef min // override standard definition
#undef max // override standard definition
#undef ERROR // override (really stupid) wingdi.h standard definition
#undef DELETE // override (another really stupid) winnt.h standard definition
#undef MessageBox // override winuser.h standard definition
#undef MIN // override standard definition
#undef MAX // override standard definition
#undef CLAMP // override standard definition
#undef Error
#undef OK
#undef CONNECT_DEFERRED // override from Windows SDK, clashes with Object enum
#endif
#if defined(__GNUC__)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#else
#define likely(x) x
#define unlikely(x) x
#endif
#ifdef REAL_T_IS_DOUBLE
typedef double real_t;
#else
typedef float real_t;
#endif
// Generic swap template.
#ifndef SWAP
#define SWAP(m_x, m_y) __swap_tmpl((m_x), (m_y))
template <typename T>
inline void __swap_tmpl(T &x, T &y) {
T aux = x;
x = y;
y = aux;
}
#endif // SWAP
// Home-made index sequence trick, so it can be used everywhere without the costly include of std::tuple.
// https://stackoverflow.com/questions/15014096/c-index-of-type-during-variadic-template-expansion
template <size_t... Is>
struct IndexSequence {};
template <size_t N, size_t... Is>
struct BuildIndexSequence : BuildIndexSequence<N - 1, N - 1, Is...> {};
template <size_t... Is>
struct BuildIndexSequence<0, Is...> : IndexSequence<Is...> {};
#endif // GODOT_DEFS_HPP
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