/*******************************************************************************
 *
 * MIT License
 *
 * Copyright (c) 2020 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 *******************************************************************************/
#ifndef CK_REDUCTION_COMMON_HPP
#define CK_REDUCTION_COMMON_HPP

#include "reduction_enums.hpp"

namespace ck {

struct float_equal_one
{
    template <class T>
    __device__ inline bool operator()(T x)
    {
        return x <= static_cast<T>(1.0f) and x >= static_cast<T>(1.0f);
    };
};

struct float_equal_zero
{
    template <class T>
    __device__ inline bool operator()(T x)
    {
        return x <= static_cast<T>(0.0f) and x >= static_cast<T>(0.0f);
    };
};

template <index_t N>
static constexpr __device__ index_t get_shift()
{
    return (get_shift<N / 2>() + 1);
};

template <>
constexpr __device__ index_t get_shift<1>()
{
    return (0);
}

}; // end of namespace ck

#endif
