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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Platform.h>
#include <AK/StdLibExtras.h>
using u64 = __UINT64_TYPE__;
using u32 = __UINT32_TYPE__;
using u16 = __UINT16_TYPE__;
using u8 = __UINT8_TYPE__;
using i64 = __INT64_TYPE__;
using i32 = __INT32_TYPE__;
using i16 = __INT16_TYPE__;
using i8 = __INT8_TYPE__;
#ifndef KERNEL
using f32 = float;
static_assert(__FLT_MANT_DIG__ == 24 && __FLT_MAX_EXP__ == 128);
using f64 = double;
static_assert(__DBL_MANT_DIG__ == 53 && __DBL_MAX_EXP__ == 1024);
# if __LDBL_MANT_DIG__ == 64 && __LDBL_MAX_EXP__ == 16384
# define AK_HAS_FLOAT_80 1
using f80 = long double;
# elif __LDBL_MANT_DIG__ == 113 && __LDBL_MAX_EXP__ == 16384
# define AK_HAS_FLOAT_128 1
using f128 = long double;
# endif
#endif
#ifdef AK_OS_SERENITY
using size_t = __SIZE_TYPE__;
using ssize_t = AK::Detail::MakeSigned<size_t>;
using ptrdiff_t = __PTRDIFF_TYPE__;
using intptr_t = __INTPTR_TYPE__;
using uintptr_t = __UINTPTR_TYPE__;
using uint8_t = u8;
using uint16_t = u16;
using uint32_t = u32;
using uint64_t = u64;
using int8_t = i8;
using int16_t = i16;
using int32_t = i32;
using int64_t = i64;
using pid_t = int;
#else
# include <stddef.h>
# include <stdint.h>
# include <sys/types.h>
# ifdef __ptrdiff_t
using __ptrdiff_t = __PTRDIFF_TYPE__;
# endif
# if defined(AK_OS_WINDOWS)
using ssize_t = AK::Detail::MakeSigned<size_t>;
using mode_t = unsigned short;
# endif
#endif
using FlatPtr = AK::Detail::Conditional<sizeof(void*) == 8, u64, u32>;
constexpr u64 KiB = 1024;
constexpr u64 MiB = KiB * KiB;
constexpr u64 GiB = KiB * KiB * KiB;
constexpr u64 TiB = KiB * KiB * KiB * KiB;
constexpr u64 PiB = KiB * KiB * KiB * KiB * KiB;
constexpr u64 EiB = KiB * KiB * KiB * KiB * KiB * KiB;
namespace AK_REPLACED_STD_NAMESPACE { // NOLINT(cert-dcl58-cpp) nullptr_t must be in ::std:: for some analysis tools
using nullptr_t = decltype(nullptr);
}
namespace AK {
using nullptr_t = AK_REPLACED_STD_NAMESPACE::nullptr_t;
static constexpr FlatPtr explode_byte(u8 b)
{
FlatPtr value = b;
if constexpr (sizeof(FlatPtr) == 4)
return value << 24 | value << 16 | value << 8 | value;
else if (sizeof(FlatPtr) == 8)
return value << 56 | value << 48 | value << 40 | value << 32 | value << 24 | value << 16 | value << 8 | value;
}
static_assert(explode_byte(0xff) == (FlatPtr)0xffffffffffffffffull);
static_assert(explode_byte(0x80) == (FlatPtr)0x8080808080808080ull);
static_assert(explode_byte(0x7f) == (FlatPtr)0x7f7f7f7f7f7f7f7full);
static_assert(explode_byte(0) == 0);
constexpr size_t align_up_to(const size_t value, const size_t alignment)
{
return (value + (alignment - 1)) & ~(alignment - 1);
}
constexpr size_t align_down_to(const size_t value, const size_t alignment)
{
return value & ~(alignment - 1);
}
enum class [[nodiscard]] TriState : u8 {
False,
True,
Unknown
};
enum MemoryOrder {
memory_order_relaxed = __ATOMIC_RELAXED,
memory_order_consume = __ATOMIC_CONSUME,
memory_order_acquire = __ATOMIC_ACQUIRE,
memory_order_release = __ATOMIC_RELEASE,
memory_order_acq_rel = __ATOMIC_ACQ_REL,
memory_order_seq_cst = __ATOMIC_SEQ_CST
};
}
#if USING_AK_GLOBALLY
using AK::align_down_to;
using AK::align_up_to;
using AK::explode_byte;
using AK::MemoryOrder;
using AK::nullptr_t;
using AK::TriState;
#endif
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