seen_empty_footer.hpp

 
 
// Check done
 
for (std::uint8_t d{}; fg.size() != d; ++d) {
    BitSet<8> const field(static_cast<BitSet<8>::T>(
        // clang-format off
                   std::uint8_t(isMaskSet(fg[d], 0xFFull)) 
                    | (std::uint8_t(isMaskSet(fg[d] >>  8, 0xFFull)) << 1) 
                    | (std::uint8_t(isMaskSet(fg[d] >> 16, 0xFFull)) << 2) 
                    | (std::uint8_t(isMaskSet(fg[d] >> 24, 0xFFull)) << 3) 
                    | (std::uint8_t(isMaskSet(fg[d] >> 32, 0xFFull)) << 4) 
                    | (std::uint8_t(isMaskSet(fg[d] >> 40, 0xFFull)) << 5) 
                    | (std::uint8_t(isMaskSet(fg[d] >> 48, 0xFFull)) << 6) 
                    | (std::uint8_t(isMaskSet(fg[d] >> 56, 0xFFull)) << 7)
        // clang-format on
        ));
 
    if (field.all()) {
        std::get<0>(misses[thread_id]).emplace_back(i, depth + 2);
        std::get<1>(misses[thread_id]).push_back(field);
        std::get<2>(misses[thread_id]).push_back(d + 1);
    } else if (field.any()) {
        std::get<0>(misses[thread_id]).emplace_back(i, depth + 1);
        std::get<1>(misses[thread_id]).push_back(field);
        std::get<2>(misses[thread_id]).push_back(d + 1);
    }
 
    if (!field.all()) {
        for (code_t j{}, k{}; 64 != j; j += 8, ++k) {
            if (!std::as_const(field)[k] && (0xFF & (fg[d] >> j))) {
                BitSet<8> f(static_cast<BitSet<8>::T>(
                    // clang-format off
                          (0x1ull  & (fg[d] >> j)) 
                            | (0x2ull  & (fg[d] >> j)) 
                            | (0x4ull  & (fg[d] >> j)) 
                            | (0x8ull  & (fg[d] >> j)) 
                            | (0x10ull & (fg[d] >> j)) 
                            | (0x20ull & (fg[d] >> j)) 
                            | (0x40ull & (fg[d] >> j)) 
                            | (0x80ull & (fg[d] >> j))
                    // clang-format on
                    ));
 
                std::get<0>(misses[thread_id]).emplace_back(i | (j << 3 * depth), depth);
                std::get<1>(misses[thread_id]).push_back(f);
                std::get<2>(misses[thread_id]).push_back(d + 1);
            }
        }
    }
}
}
}
 
return misses;
}
}  // namespace impl
}  // namespace ufo
 
#endif  // UFO_MAP_INTEGRATION_MISSES_HPP