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54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
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* Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
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*/
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#ifndef Tuples_h__
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#define Tuples_h__
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#include <tuple>
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namespace Acore
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{
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template <typename T, typename Tuple>
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struct has_type;
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template <typename T, typename... Us>
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struct has_type<T, std::tuple<Us...>> : std::disjunction<std::is_same<T, Us>...>
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{
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};
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template <typename T, typename... Us>
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constexpr bool has_type_v = has_type<T, Us...>::value;
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template<typename>
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struct is_tuple : std::false_type
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{
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};
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template<typename... Ts>
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struct is_tuple<std::tuple<Ts...>> : std::true_type
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{
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};
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template<typename... Ts>
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constexpr bool is_tuple_v = is_tuple<Ts...>::value;
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namespace Impl
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{
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template <class T, class Tuple, size_t... I>
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T* new_from_tuple(Tuple&& args, std::index_sequence<I...>)
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{
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return new T(std::get<I>(std::forward<Tuple>(args))...);
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}
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}
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template<class T, class Tuple>
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[[nodiscard]] T* new_from_tuple(Tuple&& args)
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{
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return Impl::new_from_tuple<T>(std::forward<Tuple>(args), std::make_index_sequence<std::tuple_size_v<std::remove_reference_t<Tuple>>>{});
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}
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}
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#endif // Tuples_h__
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