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Atmosphere/libraries/libvapours/include/vapours/defines.hpp

105 lines
3.8 KiB
C++

/*
* Copyright (c) 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 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)
#define AMS__NARG__(...) AMS__NARG_I_(__VA_ARGS__,AMS__RSEQ_N())
#define AMS__NARG_I_(...) AMS__ARG_N(__VA_ARGS__)
#define AMS__ARG_N( \
_1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
_21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
_31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
_41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
_51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
_61,_62,_63,N,...) N
#define AMS__RSEQ_N() \
63,62,61,60, \
59,58,57,56,55,54,53,52,51,50, \
49,48,47,46,45,44,43,42,41,40, \
39,38,37,36,35,34,33,32,31,30, \
29,28,27,26,25,24,23,22,21,20, \
19,18,17,16,15,14,13,12,11,10, \
9,8,7,6,5,4,3,2,1,0
#define AMS__VMACRO_(name, n) name##_##n
#define AMS__VMACRO(name, n) AMS__VMACRO_(name, n)
#define AMS_VMACRO(func, ...) AMS__VMACRO(func, AMS__NARG__(__VA_ARGS__)) (__VA_ARGS__)