rotate.h

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// SPDX-License-Identifier: Apache-2.0
// Copyright Contributors to the OpenQMC Project.
 
 
#pragma once
 
#include "gpu.h"
 
#include <cstdint>
 
namespace oqmc
{
 
OQMC_HOST_DEVICE constexpr std::uint32_t rotateBits(std::uint32_t value,
                                                    std::uint32_t distance)
{
    return value >> (+distance & 31) | value << (-distance & 31);
}
 
OQMC_HOST_DEVICE constexpr std::uint32_t rotateBytes(std::uint32_t value,
                                                     int distance)
{
    return rotateBits(value, distance * 8);
}
 
} // namespace oqmc