ladybird/AK/Types.h
2020-02-05 18:39:45 +01:00

116 lines
3.3 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/IterationDecision.h>
#include <AK/Platform.h>
#ifdef __serenity__
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long int u64;
static_assert(sizeof(u8) == 1);
static_assert(sizeof(u16) == 2);
static_assert(sizeof(u32) == 4);
static_assert(sizeof(u64) == 8);
typedef signed char i8;
typedef signed short i16;
typedef signed int i32;
typedef signed long long int i64;
static_assert(sizeof(i8) == 1);
static_assert(sizeof(i16) == 2);
static_assert(sizeof(i32) == 4);
static_assert(sizeof(i64) == 8);
typedef __SIZE_TYPE__ size_t;
typedef i32 ssize_t;
static_assert(sizeof(size_t) == sizeof(u32));
static_assert(sizeof(ssize_t) == sizeof(i32));
typedef __PTRDIFF_TYPE__ ptrdiff_t;
typedef __INTPTR_TYPE__ intptr_t;
typedef __UINTPTR_TYPE__ uintptr_t;
typedef u8 uint8_t;
typedef u16 uint16_t;
typedef u32 uint32_t;
typedef u64 uint64_t;
typedef i8 int8_t;
typedef i16 int16_t;
typedef i32 int32_t;
typedef i64 int64_t;
#else
# include <stdint.h>
# include <sys/types.h>
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;
typedef int8_t i8;
typedef int16_t i16;
typedef int32_t i32;
typedef int64_t i64;
#ifdef __ptrdiff_t
typedef __PTRDIFF_TYPE__ __ptrdiff_t;
#endif
#endif
constexpr unsigned KB = 1024;
constexpr unsigned MB = KB * KB;
constexpr unsigned GB = KB * KB * KB;
namespace std {
typedef decltype(nullptr) nullptr_t;
}
static constexpr u32 explode_byte(u8 b)
{
return b << 24 | b << 16 | b << 8 | b;
}
static_assert(explode_byte(0xff) == 0xffffffff);
static_assert(explode_byte(0x80) == 0x80808080);
static_assert(explode_byte(0x7f) == 0x7f7f7f7f);
static_assert(explode_byte(0) == 0);
inline constexpr size_t align_up_to(const size_t value, const size_t alignment)
{
return (value + (alignment - 1)) & ~(alignment - 1);
}
enum class TriState : u8 { False, True, Unknown };