ladybird/AK/Types.h
Ali Mohammad Pur f96a3c002a Everywhere: Stop shoving things into ::std and mentioning them as such
Note that this still keeps the old behaviour of putting things in std by
default on serenity so the tools can be happy, but if USING_AK_GLOBALLY
is unset, AK behaves like a good citizen and doesn't try to put things
in the ::std namespace.

std::nothrow_t and its friends get to stay because I'm being told that
compilers assume things about them and I can't yeet them into a
different namespace...for now.
2022-12-14 11:44:32 +01:00

141 lines
3.4 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/IterationDecision.h>
#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