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AK: Add Integral and FloatingPoint concepts.

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asynts 2020-08-03 20:14:37 +02:00 committed by Andreas Kling
parent 05abfc0e1f
commit 5f7427ba4b
2 changed files with 78 additions and 0 deletions
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43
AK/Concepts.h Normal file
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@ -0,0 +1,43 @@
/*
* Copyright (c) 2020, the SerenityOS developers.
* 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/StdLibExtras.h>
namespace AK::Concepts {
// clang-format off
template<typename T>
concept Integral = IsIntegral<T>::value;
template<typename T>
concept FloatingPoint = IsFloatingPoint<T>::value;
// clang-format on
}

35
AK/StdLibExtras.h
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@ -26,6 +26,11 @@
#pragma once
typedef __UINT64_TYPE__ u64;
typedef __UINT32_TYPE__ u32;
typedef __UINT16_TYPE__ u16;
typedef __UINT8_TYPE__ u8;
#define UNUSED_PARAM(x) (void)x
inline constexpr unsigned round_up_to_power_of_two(unsigned value, unsigned power_of_two)
@ -455,6 +460,36 @@ template<typename Base, typename Derived>
struct IsBaseOf : public IntegralConstant<bool, __is_base_of(Base, Derived)> {
};
template<typename T>
struct __IsIntegral : FalseType {
};
template<>
struct __IsIntegral<u8> : TrueType {
};
template<>
struct __IsIntegral<u16> : TrueType {
};
template<>
struct __IsIntegral<u32> : TrueType {
};
template<>
struct __IsIntegral<u64> : TrueType {
};
template<typename T>
using IsIntegral = __IsIntegral<typename MakeUnsigned<typename RemoveCV<T>::Type>::Type>;
template<typename T>
struct __IsFloatingPoint : FalseType {
};
template<>
struct __IsFloatingPoint<float> : TrueType {
};
template<>
struct __IsFloatingPoint<double> : TrueType {
};
template<typename T>
using IsFloatingPoint = __IsFloatingPoint<typename RemoveCV<T>::Type>;
template<typename ReferenceType, typename T>
using CopyConst =
typename Conditional<IsConst<ReferenceType>::value, typename AddConst<T>::Type, typename RemoveConst<T>::Type>::Type;