alignedAlloc.hpp

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/* Copyright 2022 René Widera, Bernhard Manfred Gruber
 * SPDX-License-Identifier: MPL-2.0
 */
 
#pragma once
 
#include "alpaka/core/common.hpp"
#include "alpaka/core/config.hpp"
 
#include <cstddef>
#include <new>
 
namespace alpaka::core
{
    ALPAKA_FN_INLINE ALPAKA_FN_HOST auto alignedAlloc(size_t alignment, size_t size) -> void*
    {
        if(size == 0u)
        {
            return nullptr;
        }
        else
        {
            return ::operator new(size, std::align_val_t{alignment});
        }
    }
 
    ALPAKA_FN_INLINE ALPAKA_FN_HOST void alignedFree(size_t alignment, auto ptr)
        requires(std::is_pointer_v<ALPAKA_TYPEOF(ptr)>)
    {
        if(ptr != nullptr)
        {
            ::operator delete(toVoidPtr(ptr), std::align_val_t{alignment});
        }
    }
} // namespace alpaka::core