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Atmosphere/libraries/libvapours/include/vapours/defines.hpp
2020-08-17 14:20:24 -07:00

84 lines
2.9 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/includes.hpp>
/* Any broadly useful language defines should go here. */
#define NON_COPYABLE(cls) \
cls(const cls&) = delete; \
cls& operator=(const cls&) = delete
#define NON_MOVEABLE(cls) \
cls(cls&&) = delete; \
cls& operator=(cls&&) = delete
#define ALIGNED(algn) __attribute__((aligned(algn)))
#define NORETURN __attribute__((noreturn))
#define WEAK_SYMBOL __attribute__((weak))
#define ALWAYS_INLINE_LAMBDA __attribute__((always_inline))
#define ALWAYS_INLINE inline __attribute__((always_inline))
#define NOINLINE __attribute__((noinline))
#define CONST_FOLD(x) (__builtin_constant_p(x) ? (x) : (x))
#define CONCATENATE_IMPL(s1, s2) s1##s2
#define CONCATENATE(s1, s2) CONCATENATE_IMPL(s1, s2)
#define BITSIZEOF(x) (sizeof(x) * CHAR_BIT)
#define STRINGIZE(x) STRINGIZE_IMPL(x)
#define STRINGIZE_IMPL(x) #x
#ifdef __COUNTER__
#define ANONYMOUS_VARIABLE(pref) CONCATENATE(pref, __COUNTER__)
#else
#define ANONYMOUS_VARIABLE(pref) CONCATENATE(pref, __LINE__)
#endif
#define AMS_PREDICT(expr, value, _probability) __builtin_expect_with_probability(expr, value, ({ \
constexpr double probability = _probability; \
static_assert(0.0 <= probability); \
static_assert(probability <= 1.0); \
probability; \
}))
#define AMS_PREDICT_TRUE(expr, probability) AMS_PREDICT(!!(expr), 1, probability)
#define AMS_PREDICT_FALSE(expr, probability) AMS_PREDICT(!!(expr), 0, probability)
#define AMS_LIKELY(expr) AMS_PREDICT_TRUE(expr, 1.0)
#define AMS_UNLIKELY(expr) AMS_PREDICT_FALSE(expr, 1.0)
#define AMS_ASSUME(expr) do { if (!static_cast<bool>((expr))) { __builtin_unreachable(); } } while (0)
#define AMS_CURRENT_FUNCTION_NAME __FUNCTION__
#if defined(__cplusplus)
namespace ams::impl {
template<typename... ArgTypes>
constexpr ALWAYS_INLINE void UnusedImpl(ArgTypes &&... args) {
(static_cast<void>(args), ...);
}
}
#endif
#define AMS_UNUSED(...) ::ams::impl::UnusedImpl(__VA_ARGS__)
#define AMS_INFINITE_LOOP() do { __asm__ __volatile__("" ::: "memory"); } while (1)