has_single_bit.h

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#pragma once
 
#include "di/bit/operation/popcount.h"
 
namespace di::bit {
namespace detail {
    struct HasSingleBitFunction {
        template<concepts::UnsignedInteger T>
        constexpr auto operator()(T value) const -> bool {
            return popcount(value) == 1;
        }
    };
}
 
constexpr inline auto has_single_bit = detail::HasSingleBitFunction {};
}
 
namespace di {
using bit::has_single_bit;
}