25 lines
903 B
C++
25 lines
903 B
C++
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#ifndef LIBDPF_TEST_TESTS_HELPERS_DOMAIN_WALK_HPP__
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#define LIBDPF_TEST_TESTS_HELPERS_DOMAIN_WALK_HPP__
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// eval_interval / eval_full emit points in integer order of the input bits
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// (the same order as operator++ for ordinary integers). xor_wrapper::operator++
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// is characteristic-2 addition, XOR 1, so it does not walk that domain.
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template <typename InputT>
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InputT next_domain_point(InputT cur)
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{
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if constexpr (dpf::utils::has_characteristic_two_v<InputT>)
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{
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using narrow = dpf::utils::integral_type_from_bitlength_t<dpf::utils::bitlength_of_v<InputT>>;
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auto bits = static_cast<narrow>(dpf::utils::to_integral_type<InputT>{}(cur));
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bits = static_cast<narrow>(bits + narrow{1});
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return dpf::utils::make_from_integral_value<InputT>{}(bits);
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}
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else
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{
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++cur;
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return cur;
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}
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}
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#endif // LIBDPF_TEST_TESTS_HELPERS_DOMAIN_WALK_HPP__
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