hash.cuh

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// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <cuda_runtime.h>
#include <cuda/std/array>
#include <cuda/std/span>
#include <cuda/std/tuple>
#include <concepts>
 
template <typename Hash>
concept Hashable = requires(Hash hash, cuda::std::span<const int4, 4> msg) {
    { hash.Hash(msg) } -> std::same_as<cuda::std::array<int4, 2>>;
};
 
template <typename Hash>
concept XorHashable = requires(Hash hash, cuda::std::tuple<int4, const int4> msg) {
    { hash.Hash(msg) } -> std::same_as<cuda::std::array<int4, 4>>;
};