20 lines
353 B
C++
20 lines
353 B
C++
template <typename... Ts>
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struct type_list {};
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template <typename T1>
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struct A {};
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template <typename U2>
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struct B {};
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template <typename U2, template <typename...> typename HKT>
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struct B<HKT<U2>> {
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using type = type_list<U2>;
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};
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template <typename X>
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struct test {
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using result = typename B<A<X>>::type;
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using expect = type_list<X>;
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};
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