mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-21 23:20:20 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
126 lines
2.2 KiB
C++
126 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/StdLibExtraDetails.h>
|
|
|
|
#include <AK/Assertions.h>
|
|
|
|
constexpr unsigned round_up_to_power_of_two(unsigned value, unsigned power_of_two)
|
|
{
|
|
return ((value - 1) & ~(power_of_two - 1)) + power_of_two;
|
|
}
|
|
|
|
namespace std {
|
|
|
|
// NOTE: This is in the "std" namespace since some compiler features rely on it.
|
|
|
|
template<typename T>
|
|
constexpr T&& move(T& arg)
|
|
{
|
|
return static_cast<T&&>(arg);
|
|
}
|
|
|
|
}
|
|
|
|
using std::move;
|
|
|
|
namespace AK::Detail {
|
|
template<typename T>
|
|
struct _RawPtr {
|
|
using Type = T*;
|
|
};
|
|
}
|
|
|
|
namespace AK {
|
|
|
|
template<typename T>
|
|
auto declval() -> T;
|
|
|
|
template<class T>
|
|
constexpr T&& forward(RemoveReference<T>& param)
|
|
{
|
|
return static_cast<T&&>(param);
|
|
}
|
|
|
|
template<class T>
|
|
constexpr T&& forward(RemoveReference<T>&& param) noexcept
|
|
{
|
|
static_assert(!IsLvalueReference<T>, "Can't forward an rvalue as an lvalue.");
|
|
return static_cast<T&&>(param);
|
|
}
|
|
|
|
template<typename T, typename SizeType = decltype(sizeof(T)), SizeType N>
|
|
constexpr SizeType array_size(T (&)[N])
|
|
{
|
|
return N;
|
|
}
|
|
|
|
template<typename T>
|
|
constexpr T min(const T& a, const T& b)
|
|
{
|
|
return b < a ? b : a;
|
|
}
|
|
|
|
template<typename T>
|
|
constexpr T max(const T& a, const T& b)
|
|
{
|
|
return a < b ? b : a;
|
|
}
|
|
|
|
template<typename T>
|
|
constexpr T clamp(const T& value, const T& min, const T& max)
|
|
{
|
|
VERIFY(max >= min);
|
|
if (value > max)
|
|
return max;
|
|
if (value < min)
|
|
return min;
|
|
return value;
|
|
}
|
|
|
|
template<typename T, typename U>
|
|
constexpr T ceil_div(T a, U b)
|
|
{
|
|
static_assert(sizeof(T) == sizeof(U));
|
|
T result = a / b;
|
|
if ((a % b) != 0)
|
|
++result;
|
|
return result;
|
|
}
|
|
|
|
template<typename T, typename U>
|
|
inline void swap(T& a, U& b)
|
|
{
|
|
U tmp = move((U&)a);
|
|
a = (T &&) move(b);
|
|
b = move(tmp);
|
|
}
|
|
|
|
template<typename T, typename U = T>
|
|
constexpr T exchange(T& slot, U&& value)
|
|
{
|
|
T old_value = move(slot);
|
|
slot = forward<U>(value);
|
|
return old_value;
|
|
}
|
|
|
|
template<typename T>
|
|
using RawPtr = typename Detail::_RawPtr<T>::Type;
|
|
|
|
}
|
|
|
|
using AK::array_size;
|
|
using AK::ceil_div;
|
|
using AK::clamp;
|
|
using AK::declval;
|
|
using AK::exchange;
|
|
using AK::forward;
|
|
using AK::max;
|
|
using AK::min;
|
|
using AK::RawPtr;
|
|
using AK::swap;
|