2019-12-04 14:30:47 +00:00
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//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_List_h
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#define vtk_m_List_h
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#include <vtkm/Types.h>
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2022-02-09 18:27:30 +00:00
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#include <vtkm/internal/Meta.h>
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2022-05-18 11:59:07 +00:00
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#include <functional>
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2019-12-04 14:30:47 +00:00
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namespace vtkm
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{
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2022-02-10 22:50:31 +00:00
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// We are currently limiting the size of a `vtkm::List`. Generally, a compiler will
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// happily create a list of any size. However, to make sure the compiler does not go
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// into an infinite loop, you can only iterate on a list so far. As such, it is safer
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// to limit the size of the lists.
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#define VTKM_CHECK_LIST_SIZE(size) \
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static_assert((size) <= 512, \
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"A vtkm::List with more than 512 elements is not supported." \
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" A list this long is problematic for compilers." \
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" Compilers often have a recursive template instantiation limit of around 1024," \
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" so operations on lists this large can lead to confusing and misleading errors.")
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2023-11-13 03:52:07 +00:00
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/// @brief A template used to hold a list of types.
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///
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/// `List` is an empty `struct` that is used to hold a list of types as its template
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/// arguments. VTK-m provides templated types that allows a `List` to be
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/// manipulated and used in numerous ways.
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template <typename... Ts>
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struct List
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{
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VTKM_CHECK_LIST_SIZE(sizeof...(Ts));
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};
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namespace internal
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{
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template <typename T>
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struct IsListImpl
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{
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using type = std::false_type;
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};
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template <typename... Ts>
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struct IsListImpl<vtkm::List<Ts...>>
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{
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using type = std::true_type;
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};
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template <typename T>
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using IsList = typename vtkm::internal::IsListImpl<T>::type;
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} // namespace internal
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/// Checks that the argument is a proper list. This is a handy concept
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/// check for functions and classes to make sure that a template argument is
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/// actually a device adapter tag. (You can get weird errors elsewhere in the
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/// code when a mistake is made.)
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///
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2020-08-17 14:18:24 +00:00
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#define VTKM_IS_LIST(type) \
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VTKM_STATIC_ASSERT_MSG((::vtkm::internal::IsList<type>::value), \
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"Provided type is not a valid VTK-m list type.")
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namespace detail
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{
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/// list value that is used to represent a list actually matches all values
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struct UniversalTypeTag
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{
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//We never want this tag constructed, and by deleting the constructor
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//we get an error when trying to use this class with ForEach.
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UniversalTypeTag() = delete;
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};
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} // namespace detail
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2023-11-13 03:52:07 +00:00
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/// @brief A convenience type for an empty list.
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///
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using ListEmpty = vtkm::List<>;
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/// @brief A special type for a list that represents holding all potential values
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///
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/// Note: This list cannot be used with `ForEach` and some list transforms
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/// for obvious reasons.
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using ListUniversal = vtkm::List<detail::UniversalTypeTag>;
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namespace detail
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{
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template <typename L>
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struct ListSizeImpl;
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template <typename... Ts>
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struct ListSizeImpl<vtkm::List<Ts...>>
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{
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using type =
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std::integral_constant<vtkm::IdComponent, static_cast<vtkm::IdComponent>(sizeof...(Ts))>;
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};
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} // namespace detail
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/// Becomes an std::integral_constant containing the number of types in a list.
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///
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template <typename List>
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using ListSize = typename detail::ListSizeImpl<List>::type;
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namespace detail
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{
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template <typename T, template <typename...> class Target>
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struct ListApplyImpl;
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template <typename... Ts, template <typename...> class Target>
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struct ListApplyImpl<vtkm::List<Ts...>, Target>
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{
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using type = Target<Ts...>;
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};
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// Cannot apply the universal list.
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template <template <typename...> class Target>
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struct ListApplyImpl<vtkm::ListUniversal, Target>;
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} // namespace detail
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/// \brief Applies the list of types to a template.
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///
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/// Given a ListTag and a templated class, returns the class instantiated with the types
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/// represented by the ListTag.
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///
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template <typename List, template <typename...> class Target>
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using ListApply = typename detail::ListApplyImpl<List, Target>::type;
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namespace detail
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{
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template <typename... Ls>
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struct ListAppendImpl;
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template <>
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struct ListAppendImpl<>
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{
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using type = vtkm::ListEmpty;
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};
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template <typename L>
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struct ListAppendImpl<L>
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{
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using type = L;
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};
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template <typename... T0s, typename... T1s>
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struct ListAppendImpl<vtkm::List<T0s...>, vtkm::List<T1s...>>
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{
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using type = vtkm::List<T0s..., T1s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s, typename... T1s, typename... T2s>
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struct ListAppendImpl<vtkm::List<T0s...>, vtkm::List<T1s...>, vtkm::List<T2s...>>
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{
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using type = vtkm::List<T0s..., T1s..., T2s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s, typename... T1s, typename... T2s, typename... T3s>
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struct ListAppendImpl<vtkm::List<T0s...>,
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vtkm::List<T1s...>,
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vtkm::List<T2s...>,
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vtkm::List<T3s...>>
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{
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using type = vtkm::List<T0s..., T1s..., T2s..., T3s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s, typename... T1s, typename... T2s, typename... T3s, typename... T4s>
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struct ListAppendImpl<vtkm::List<T0s...>,
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vtkm::List<T1s...>,
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vtkm::List<T2s...>,
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vtkm::List<T3s...>,
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vtkm::List<T4s...>>
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{
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using type = vtkm::List<T0s..., T1s..., T2s..., T3s..., T4s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s,
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typename... T1s,
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typename... T2s,
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typename... T3s,
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typename... T4s,
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typename... T5s>
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struct ListAppendImpl<vtkm::List<T0s...>,
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vtkm::List<T1s...>,
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vtkm::List<T2s...>,
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vtkm::List<T3s...>,
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vtkm::List<T4s...>,
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vtkm::List<T5s...>>
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{
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using type = vtkm::List<T0s..., T1s..., T2s..., T3s..., T4s..., T5s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s,
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typename... T1s,
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typename... T2s,
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typename... T3s,
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typename... T4s,
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typename... T5s,
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typename... T6s>
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struct ListAppendImpl<vtkm::List<T0s...>,
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vtkm::List<T1s...>,
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vtkm::List<T2s...>,
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vtkm::List<T3s...>,
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vtkm::List<T4s...>,
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vtkm::List<T5s...>,
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vtkm::List<T6s...>>
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{
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using type = vtkm::List<T0s..., T1s..., T2s..., T3s..., T4s..., T5s..., T6s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s,
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typename... T1s,
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typename... T2s,
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typename... T3s,
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typename... T4s,
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typename... T5s,
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typename... T6s,
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typename... T7s>
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struct ListAppendImpl<vtkm::List<T0s...>,
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vtkm::List<T1s...>,
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vtkm::List<T2s...>,
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vtkm::List<T3s...>,
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vtkm::List<T4s...>,
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vtkm::List<T5s...>,
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vtkm::List<T6s...>,
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vtkm::List<T7s...>>
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{
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using type = vtkm::List<T0s..., T1s..., T2s..., T3s..., T4s..., T5s..., T6s..., T7s...>;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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template <typename... T0s,
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typename... T1s,
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typename... T2s,
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typename... T3s,
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typename... T4s,
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typename... T5s,
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typename... T6s,
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typename... T7s,
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typename... Ls>
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struct ListAppendImpl<vtkm::List<T0s...>,
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vtkm::List<T1s...>,
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vtkm::List<T2s...>,
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vtkm::List<T3s...>,
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vtkm::List<T4s...>,
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vtkm::List<T5s...>,
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vtkm::List<T6s...>,
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vtkm::List<T7s...>,
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Ls...>
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{
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using type = typename ListAppendImpl<
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vtkm::List<T0s..., T1s..., T2s..., T3s..., T4s..., T5s..., T6s..., T7s...>,
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Ls...>::type;
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VTKM_CHECK_LIST_SIZE(vtkm::ListSize<type>::value);
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};
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} // namespace detail
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/// Concatinates a set of lists into a single list.
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///
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/// Note that this does not work correctly with `vtkm::ListUniversal`.
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template <typename... Lists>
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using ListAppend = typename detail::ListAppendImpl<Lists...>::type;
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namespace detail
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{
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template <typename T, vtkm::IdComponent N>
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struct ListFillImpl
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{
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using type = typename ListAppendImpl<typename ListFillImpl<T, (N / 2)>::type,
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typename ListFillImpl<T, (N - (N / 2))>::type>::type;
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};
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template <typename T>
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struct ListFillImpl<T, 1>
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{
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using type = vtkm::List<T>;
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};
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template <typename T>
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struct ListFillImpl<T, 0>
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{
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using type = vtkm::List<>;
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};
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} // namespace detail
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/// \brief Returns a list filled with N copies of type T
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///
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template <typename T, vtkm::IdComponent N>
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using ListFill = typename detail::ListFillImpl<T, N>::type;
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namespace detail
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{
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template <typename T>
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struct ListAtImplFunc;
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template <typename... VoidTypes>
|
|
|
|
struct ListAtImplFunc<vtkm::List<VoidTypes...>>
|
2022-02-02 22:51:25 +00:00
|
|
|
{
|
2022-02-08 23:35:57 +00:00
|
|
|
// Rather than declare a `type`, make a declaration of a function that returns the type
|
|
|
|
// after some number of `const void*` arguments. We can use ListFill to quickly create
|
|
|
|
// the list of `const void*` arguments, so the type can be returned. We can then use
|
|
|
|
// decltype to get the returned type.
|
|
|
|
//
|
|
|
|
// Templating the `Other` should not be strictly necessary. (You should be able to just
|
|
|
|
// end with `...`.) But some compilers (such as CUDA 8 and Intel 18) have a problem with
|
|
|
|
// that.
|
|
|
|
template <typename T, class... Other>
|
|
|
|
static T at(VoidTypes..., T*, Other...);
|
2022-02-02 22:51:25 +00:00
|
|
|
};
|
|
|
|
|
2022-02-08 23:35:57 +00:00
|
|
|
template <typename T, vtkm::IdComponent Index>
|
|
|
|
struct ListAtImpl;
|
|
|
|
|
|
|
|
template <typename... Ts, vtkm::IdComponent Index>
|
|
|
|
struct ListAtImpl<vtkm::List<Ts...>, Index>
|
2022-02-02 22:51:25 +00:00
|
|
|
{
|
2022-02-08 23:35:57 +00:00
|
|
|
using type =
|
|
|
|
decltype(ListAtImplFunc<vtkm::ListFill<const void*, Index>>::at(static_cast<Ts*>(nullptr)...));
|
2022-02-02 22:51:25 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace detail
|
2019-12-04 14:30:47 +00:00
|
|
|
|
|
|
|
/// \brief Finds the type at the given index.
|
|
|
|
///
|
|
|
|
/// This becomes the type of the list at the given index.
|
|
|
|
///
|
|
|
|
template <typename List, vtkm::IdComponent Index>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListAt = typename detail::ListAtImpl<List, Index>::type;
|
2019-12-04 14:30:47 +00:00
|
|
|
|
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched, typename Target, typename... Remaining>
|
|
|
|
struct FindFirstOfType;
|
|
|
|
|
2020-01-07 23:07:02 +00:00
|
|
|
// Not found
|
2019-12-04 14:30:47 +00:00
|
|
|
template <vtkm::IdComponent NumSearched, typename Target>
|
|
|
|
struct FindFirstOfType<NumSearched, Target> : std::integral_constant<vtkm::IdComponent, -1>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
// Basic search next one
|
2020-01-07 23:07:02 +00:00
|
|
|
template <bool NextIsTarget, vtkm::IdComponent NumSearched, typename Target, typename... Remaining>
|
|
|
|
struct FindFirstOfCheckHead;
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched, typename Target, typename... Ts>
|
|
|
|
struct FindFirstOfCheckHead<true, NumSearched, Target, Ts...>
|
|
|
|
: std::integral_constant<vtkm::IdComponent, NumSearched>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched, typename Target, typename Next, typename... Remaining>
|
|
|
|
struct FindFirstOfCheckHead<false, NumSearched, Target, Next, Remaining...>
|
|
|
|
: FindFirstOfCheckHead<std::is_same<Target, Next>::value, NumSearched + 1, Target, Remaining...>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
// Not found
|
|
|
|
template <vtkm::IdComponent NumSearched, typename Target>
|
|
|
|
struct FindFirstOfCheckHead<false, NumSearched, Target>
|
|
|
|
: std::integral_constant<vtkm::IdComponent, -1>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
template <vtkm::IdComponent NumSearched, typename Target, typename Next, typename... Remaining>
|
|
|
|
struct FindFirstOfType<NumSearched, Target, Next, Remaining...>
|
2020-01-07 23:07:02 +00:00
|
|
|
: FindFirstOfCheckHead<std::is_same<Target, Next>::value, NumSearched, Target, Remaining...>
|
2019-12-04 14:30:47 +00:00
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
// If there are at least 6 entries, check the first 4 to quickly narrow down
|
2020-01-07 23:07:02 +00:00
|
|
|
template <bool OneInFirst4Matches, vtkm::IdComponent NumSearched, typename Target, typename... Ts>
|
|
|
|
struct FindFirstOfSplit4;
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched,
|
|
|
|
typename Target,
|
|
|
|
typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename... Ts>
|
|
|
|
struct FindFirstOfSplit4<true, NumSearched, Target, T0, T1, T2, T3, Ts...>
|
|
|
|
: FindFirstOfCheckHead<std::is_same<Target, T0>::value, NumSearched, Target, T1, T2, T3>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched,
|
|
|
|
typename Target,
|
|
|
|
typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename T4,
|
|
|
|
typename... Ts>
|
|
|
|
struct FindFirstOfSplit4<false, NumSearched, Target, T0, T1, T2, T3, T4, Ts...>
|
|
|
|
: FindFirstOfCheckHead<std::is_same<Target, T4>::value, NumSearched + 4, Target, Ts...>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
template <vtkm::IdComponent NumSearched,
|
|
|
|
typename Target,
|
|
|
|
typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename T4,
|
|
|
|
typename T5,
|
|
|
|
typename... Ts>
|
2020-01-07 23:07:02 +00:00
|
|
|
struct FindFirstOfType<NumSearched, Target, T0, T1, T2, T3, T4, T5, Ts...>
|
|
|
|
: FindFirstOfSplit4<(std::is_same<Target, T0>::value || std::is_same<Target, T1>::value ||
|
2020-08-17 14:18:24 +00:00
|
|
|
std::is_same<Target, T2>::value || std::is_same<Target, T3>::value),
|
2020-01-07 23:07:02 +00:00
|
|
|
NumSearched,
|
|
|
|
Target,
|
|
|
|
T0,
|
|
|
|
T1,
|
|
|
|
T2,
|
|
|
|
T3,
|
|
|
|
T4,
|
|
|
|
T5,
|
|
|
|
Ts...>
|
2019-12-04 14:30:47 +00:00
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
// If there are at least 12 entries, check the first 8 to quickly narrow down
|
2020-01-07 23:07:02 +00:00
|
|
|
template <bool OneInFirst8Matches, vtkm::IdComponent NumSearched, typename Target, typename... Ts>
|
|
|
|
struct FindFirstOfSplit8;
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched,
|
|
|
|
typename Target,
|
|
|
|
typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename T4,
|
|
|
|
typename T5,
|
|
|
|
typename T6,
|
|
|
|
typename T7,
|
|
|
|
typename... Ts>
|
|
|
|
struct FindFirstOfSplit8<true, NumSearched, Target, T0, T1, T2, T3, T4, T5, T6, T7, Ts...>
|
|
|
|
: FindFirstOfSplit4<(std::is_same<Target, T0>::value || std::is_same<Target, T1>::value ||
|
2020-08-17 14:18:24 +00:00
|
|
|
std::is_same<Target, T2>::value || std::is_same<Target, T3>::value),
|
2020-01-07 23:07:02 +00:00
|
|
|
NumSearched,
|
|
|
|
Target,
|
|
|
|
T0,
|
|
|
|
T1,
|
|
|
|
T2,
|
|
|
|
T3,
|
|
|
|
T4,
|
|
|
|
T5,
|
|
|
|
T6,
|
|
|
|
T7>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
template <vtkm::IdComponent NumSearched,
|
|
|
|
typename Target,
|
|
|
|
typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename T4,
|
|
|
|
typename T5,
|
|
|
|
typename T6,
|
|
|
|
typename T7,
|
|
|
|
typename... Ts>
|
|
|
|
struct FindFirstOfSplit8<false, NumSearched, Target, T0, T1, T2, T3, T4, T5, T6, T7, Ts...>
|
|
|
|
: FindFirstOfType<NumSearched + 8, Target, Ts...>
|
|
|
|
{
|
|
|
|
};
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
template <vtkm::IdComponent NumSearched,
|
|
|
|
typename Target,
|
|
|
|
typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename T4,
|
|
|
|
typename T5,
|
|
|
|
typename T6,
|
|
|
|
typename T7,
|
|
|
|
typename T8,
|
|
|
|
typename T9,
|
|
|
|
typename T10,
|
|
|
|
typename T11,
|
|
|
|
typename... Ts>
|
2020-01-07 23:07:02 +00:00
|
|
|
struct FindFirstOfType<NumSearched, Target, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, Ts...>
|
|
|
|
: FindFirstOfSplit8<(std::is_same<Target, T0>::value || std::is_same<Target, T1>::value ||
|
2020-08-17 14:18:24 +00:00
|
|
|
std::is_same<Target, T2>::value || std::is_same<Target, T3>::value ||
|
|
|
|
std::is_same<Target, T4>::value || std::is_same<Target, T5>::value ||
|
|
|
|
std::is_same<Target, T6>::value || std::is_same<Target, T7>::value),
|
2020-01-07 23:07:02 +00:00
|
|
|
NumSearched,
|
|
|
|
Target,
|
|
|
|
T0,
|
|
|
|
T1,
|
|
|
|
T2,
|
|
|
|
T3,
|
|
|
|
T4,
|
|
|
|
T5,
|
|
|
|
T6,
|
|
|
|
T7,
|
|
|
|
T8,
|
|
|
|
T9,
|
|
|
|
T10,
|
|
|
|
T11,
|
|
|
|
Ts...>
|
2019-12-04 14:30:47 +00:00
|
|
|
{
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename List, typename Target>
|
|
|
|
struct ListIndexOfImpl;
|
|
|
|
template <typename... Ts, typename Target>
|
|
|
|
struct ListIndexOfImpl<vtkm::List<Ts...>, Target>
|
|
|
|
{
|
|
|
|
using type = std::integral_constant<vtkm::IdComponent, FindFirstOfType<0, Target, Ts...>::value>;
|
|
|
|
};
|
|
|
|
template <typename Target>
|
|
|
|
struct ListIndexOfImpl<vtkm::ListUniversal, Target>
|
|
|
|
{
|
|
|
|
VTKM_STATIC_ASSERT_MSG((std::is_same<Target, void>::value && std::is_same<Target, int>::value),
|
|
|
|
"Cannot get indices in a universal list.");
|
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
|
|
|
/// \brief Finds the index of a given type.
|
|
|
|
///
|
|
|
|
/// Becomes a `std::integral_constant` for the index of the given type. If the
|
|
|
|
/// given type is not in the list, the value is set to -1.
|
|
|
|
///
|
|
|
|
template <typename List, typename T>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListIndexOf = typename detail::ListIndexOfImpl<List, T>::type;
|
2019-12-04 14:30:47 +00:00
|
|
|
|
2019-12-05 02:17:19 +00:00
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
|
|
|
template <typename List, typename T>
|
|
|
|
struct ListHasImpl
|
|
|
|
{
|
|
|
|
using type = std::integral_constant<bool, (vtkm::ListIndexOf<List, T>::value >= 0)>;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename T>
|
|
|
|
struct ListHasImpl<vtkm::ListUniversal, T>
|
|
|
|
{
|
|
|
|
using type = std::true_type;
|
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
/// \brief Checks to see if the given `T` is in the list pointed to by `List`.
|
|
|
|
///
|
|
|
|
/// Becomes `std::true_type` if the `T` is in `List`. `std::false_type` otherwise.
|
|
|
|
///
|
|
|
|
template <typename List, typename T>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListHas = typename detail::ListHasImpl<List, T>::type;
|
2019-12-04 14:30:47 +00:00
|
|
|
|
2019-12-09 21:27:49 +00:00
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
template <typename T, template <typename> class Target>
|
|
|
|
struct ListTransformImpl;
|
|
|
|
template <typename... Ts, template <typename> class Target>
|
|
|
|
struct ListTransformImpl<vtkm::List<Ts...>, Target>
|
|
|
|
{
|
|
|
|
using type = vtkm::List<Target<Ts>...>;
|
|
|
|
};
|
|
|
|
// Cannot transform the universal list.
|
|
|
|
template <template <typename> class Target>
|
|
|
|
struct ListTransformImpl<vtkm::ListUniversal, Target>;
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
|
|
|
/// Constructs a list containing all types in a source list applied to a transform template.
|
|
|
|
///
|
|
|
|
template <typename List, template <typename> class Transform>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListTransform = typename detail::ListTransformImpl<List, Transform>::type;
|
2019-12-04 14:30:47 +00:00
|
|
|
|
2022-02-02 22:51:25 +00:00
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
2022-02-03 16:12:56 +00:00
|
|
|
#if defined(VTKM_MSVC) && (_MSC_VER < 1920)
|
|
|
|
// Special (inefficient) implementation for MSVC 2017, which has an ICE for the regular version
|
|
|
|
|
|
|
|
template <typename Passed,
|
|
|
|
typename Next,
|
|
|
|
bool Remove,
|
|
|
|
typename Rest,
|
|
|
|
template <typename>
|
|
|
|
class Predicate>
|
|
|
|
struct ListRemoveIfCheckNext;
|
|
|
|
|
|
|
|
template <typename Passed, typename Rest, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfGetNext;
|
|
|
|
|
|
|
|
template <typename Passed, typename Next, typename Rest, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfCheckNext<Passed, Next, true, Rest, Predicate>
|
|
|
|
{
|
|
|
|
using type = typename ListRemoveIfGetNext<Passed, Rest, Predicate>::type;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename... PassedTs, typename Next, typename Rest, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfCheckNext<vtkm::List<PassedTs...>, Next, false, Rest, Predicate>
|
|
|
|
{
|
|
|
|
using type = typename ListRemoveIfGetNext<vtkm::List<PassedTs..., Next>, Rest, Predicate>::type;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename Passed, typename Next, typename... RestTs, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfGetNext<Passed, vtkm::List<Next, RestTs...>, Predicate>
|
|
|
|
{
|
|
|
|
using type = typename ListRemoveIfCheckNext<Passed,
|
|
|
|
Next,
|
|
|
|
Predicate<Next>::value,
|
|
|
|
vtkm::List<RestTs...>,
|
|
|
|
Predicate>::type;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename Passed, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfGetNext<Passed, vtkm::List<>, Predicate>
|
|
|
|
{
|
|
|
|
using type = Passed;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename L, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfImpl
|
|
|
|
{
|
|
|
|
using type = typename ListRemoveIfGetNext<vtkm::List<>, L, Predicate>::type;
|
|
|
|
};
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
2022-02-02 22:51:25 +00:00
|
|
|
template <typename L, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfImpl;
|
|
|
|
|
|
|
|
template <typename... Ts, template <typename> class Predicate>
|
|
|
|
struct ListRemoveIfImpl<vtkm::List<Ts...>, Predicate>
|
|
|
|
{
|
|
|
|
using type = typename ListAppendImpl<
|
|
|
|
std::conditional_t<Predicate<Ts>::value, vtkm::List<>, vtkm::List<Ts>>...>::type;
|
|
|
|
};
|
|
|
|
|
2022-02-03 16:12:56 +00:00
|
|
|
#endif
|
|
|
|
|
2022-02-02 22:51:25 +00:00
|
|
|
} // namespace detail
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
/// Takes an existing `List` and a predicate template that is applied to each type in the `List`.
|
|
|
|
/// Any type in the `List` that has a value element equal to true (the equivalent of
|
|
|
|
/// `std::true_type`), that item will be removed from the list. For example the following type
|
|
|
|
///
|
|
|
|
/// ```cpp
|
|
|
|
/// vtkm::ListRemoveIf<vtkm::List<int, float, long long, double>, std::is_integral>
|
|
|
|
/// ```
|
|
|
|
///
|
|
|
|
/// resolves to a `List` that is equivalent to `vtkm::List<float, double>` because
|
|
|
|
/// `std::is_integral<int>` and `std::is_integral<long long>` resolve to `std::true_type` whereas
|
|
|
|
/// `std::is_integral<float>` and `std::is_integral<double>` resolve to `std::false_type`.
|
|
|
|
///
|
|
|
|
template <typename List, template <typename> class Predicate>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListRemoveIf = typename detail::ListRemoveIfImpl<List, Predicate>::type;
|
2022-02-02 22:51:25 +00:00
|
|
|
|
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
|
|
|
template <typename List1, typename List2>
|
|
|
|
struct ListIntersectImpl
|
|
|
|
{
|
|
|
|
template <typename T>
|
|
|
|
struct Predicate
|
|
|
|
{
|
|
|
|
static constexpr bool value = !vtkm::ListHas<List1, T>::value;
|
|
|
|
};
|
|
|
|
|
|
|
|
using type = vtkm::ListRemoveIf<List2, Predicate>;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename List1>
|
|
|
|
struct ListIntersectImpl<List1, vtkm::ListUniversal>
|
|
|
|
{
|
|
|
|
using type = List1;
|
|
|
|
};
|
|
|
|
template <typename List2>
|
|
|
|
struct ListIntersectImpl<vtkm::ListUniversal, List2>
|
|
|
|
{
|
|
|
|
using type = List2;
|
|
|
|
};
|
|
|
|
template <>
|
|
|
|
struct ListIntersectImpl<vtkm::ListUniversal, vtkm::ListUniversal>
|
|
|
|
{
|
|
|
|
using type = vtkm::ListUniversal;
|
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
|
|
|
/// Constructs a list containing types present in all lists.
|
|
|
|
///
|
|
|
|
template <typename List1, typename List2>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListIntersect = typename detail::ListIntersectImpl<List1, List2>::type;
|
2019-12-04 14:30:47 +00:00
|
|
|
|
2022-11-11 21:34:13 +00:00
|
|
|
/// For each typename represented by the list, call the functor with a
|
|
|
|
/// default instance of that type.
|
|
|
|
///
|
2019-12-09 16:06:56 +00:00
|
|
|
VTKM_SUPPRESS_EXEC_WARNINGS
|
2019-12-04 14:30:47 +00:00
|
|
|
template <typename Functor, typename... Ts, typename... Args>
|
2022-11-11 21:34:13 +00:00
|
|
|
VTKM_EXEC_CONT void ListForEach(Functor&& f, vtkm::List<Ts...>, Args&&... args)
|
2019-12-04 14:30:47 +00:00
|
|
|
{
|
2020-04-28 16:31:44 +00:00
|
|
|
VTKM_STATIC_ASSERT_MSG((!std::is_same<vtkm::List<Ts...>, vtkm::ListUniversal>::value),
|
|
|
|
"Cannot call ListFor on vtkm::ListUniversal.");
|
2022-11-11 21:34:13 +00:00
|
|
|
auto init_list = { (f(Ts{}, std::forward<Args>(args)...), false)... };
|
2019-12-04 14:30:47 +00:00
|
|
|
(void)init_list;
|
|
|
|
}
|
|
|
|
template <typename Functor, typename... Args>
|
2022-11-11 21:34:13 +00:00
|
|
|
VTKM_EXEC_CONT void ListForEach(Functor&&, vtkm::ListEmpty, Args&&...)
|
2019-12-04 14:30:47 +00:00
|
|
|
{
|
|
|
|
// No types to run functor on.
|
|
|
|
}
|
|
|
|
|
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
|
|
|
template <typename List1, typename List2>
|
2022-02-02 22:51:25 +00:00
|
|
|
struct ListCrossImpl;
|
|
|
|
|
|
|
|
template <typename... T0s, typename... T1s>
|
|
|
|
struct ListCrossImpl<vtkm::List<T0s...>, vtkm::List<T1s...>>
|
|
|
|
{
|
|
|
|
template <typename T>
|
|
|
|
struct Predicate
|
|
|
|
{
|
|
|
|
using type = vtkm::List<vtkm::List<T, T1s>...>;
|
|
|
|
};
|
|
|
|
|
|
|
|
using type = vtkm::ListAppend<typename Predicate<T0s>::type...>;
|
2019-12-04 14:30:47 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
|
|
|
/// \brief Generates a list that is the cross product of two input lists.
|
|
|
|
///
|
|
|
|
/// The resulting list has the form of `vtkm::List<vtkm::List<A1,B1>, vtkm::List<A1,B2>,...>`
|
|
|
|
///
|
|
|
|
template <typename List1, typename List2>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListCross = typename detail::ListCrossImpl<List1, List2>::type;
|
2019-12-04 14:30:47 +00:00
|
|
|
|
2022-02-09 18:27:30 +00:00
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
|
|
|
template <typename L, template <typename T1, typename T2> class Operator, typename Result>
|
|
|
|
struct ListReduceImpl;
|
|
|
|
|
|
|
|
template <template <typename T1, typename T2> class Operator, typename Result>
|
|
|
|
struct ListReduceImpl<vtkm::List<>, Operator, Result>
|
|
|
|
{
|
|
|
|
using type = Result;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename T0,
|
|
|
|
typename... Ts,
|
|
|
|
template <typename O1, typename O2>
|
|
|
|
class Operator,
|
|
|
|
typename Result>
|
|
|
|
struct ListReduceImpl<vtkm::List<T0, Ts...>, Operator, Result>
|
|
|
|
{
|
|
|
|
using type = typename ListReduceImpl<vtkm::List<Ts...>, Operator, Operator<Result, T0>>::type;
|
|
|
|
};
|
|
|
|
|
|
|
|
template <typename T0,
|
|
|
|
typename T1,
|
|
|
|
typename T2,
|
|
|
|
typename T3,
|
|
|
|
typename T4,
|
|
|
|
typename T5,
|
|
|
|
typename T6,
|
|
|
|
typename T7,
|
|
|
|
typename T8,
|
|
|
|
typename... Ts,
|
|
|
|
template <typename O1, typename O2>
|
|
|
|
class Operator,
|
|
|
|
typename Result>
|
|
|
|
struct ListReduceImpl<vtkm::List<T0, T1, T2, T3, T4, T5, T6, T7, T8, Ts...>, Operator, Result>
|
|
|
|
{
|
|
|
|
using type = typename ListReduceImpl<
|
|
|
|
vtkm::List<T8, Ts...>,
|
|
|
|
Operator,
|
|
|
|
typename ListReduceImpl<vtkm::List<T0, T1, T2, T3, T4, T5, T6, T7>, Operator, Result>::type>::
|
|
|
|
type;
|
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
|
|
|
/// \brief Reduces a list to a single type using an operator.
|
|
|
|
///
|
|
|
|
/// `ListReduce` takes a `vtkm::List`, an operator template, and an initial type. `ListReduce`
|
|
|
|
/// first applies the initial type and the first item in the list to the operator and gets
|
|
|
|
/// that type. That then applies the operator to that result and the next item in the list.
|
|
|
|
/// This continues until a single value is left.
|
|
|
|
///
|
|
|
|
template <typename List, template <typename T1, typename T2> class Operator, typename Initial>
|
2022-11-11 21:34:13 +00:00
|
|
|
using ListReduce = typename detail::ListReduceImpl<List, Operator, Initial>::type;
|
2022-02-09 18:27:30 +00:00
|
|
|
|
|
|
|
/// \brief Determines whether all the types in the list are "true."
|
|
|
|
///
|
|
|
|
/// `ListAll` expects a `vtkm::List` with types that have a `value` that is either true or false
|
|
|
|
/// (such as `std::true_type` and `std::false_type`. Resolves to `std::true_type` if all the types
|
|
|
|
/// are true, `std::false_type` otherwise. If the list is empty, resolves to `std::true_type`.
|
|
|
|
///
|
2022-03-08 16:24:38 +00:00
|
|
|
/// `ListAll` also accepts an optional second argument that is a template that is a predicate
|
|
|
|
/// applied to each item in the input list before checking for the `value` type.
|
|
|
|
///
|
|
|
|
/// ```cpp
|
|
|
|
/// using NumberList1 = vtkm::List<int, char>;
|
|
|
|
/// using NumberList2 = vtkm::List<int, float>;
|
|
|
|
///
|
|
|
|
/// // Resolves to std::true_type
|
|
|
|
/// using AllInt1 = vtkm::ListAll<NumberList1, std::is_integral>;
|
|
|
|
///
|
|
|
|
/// // Resolves to std::false_type (because float is not integral)
|
|
|
|
/// using AllInt2 = vtkm::ListAll<NumberList2, std::is_integral>;
|
|
|
|
/// ```
|
|
|
|
///
|
|
|
|
template <typename List, template <typename> class Predicate = vtkm::internal::meta::Identity>
|
|
|
|
using ListAll =
|
|
|
|
vtkm::ListReduce<vtkm::ListTransform<List, Predicate>, vtkm::internal::meta::And, std::true_type>;
|
2022-02-09 18:27:30 +00:00
|
|
|
|
|
|
|
/// \brief Determines whether any of the types in the list are "true."
|
|
|
|
///
|
2022-03-08 16:24:38 +00:00
|
|
|
/// `ListAny` expects a `vtkm::List` with types that have a `value` that is either true or false
|
2022-02-09 18:27:30 +00:00
|
|
|
/// (such as `std::true_type` and `std::false_type`. Resolves to `std::true_type` if any of the
|
|
|
|
/// types are true, `std::false_type` otherwise. If the list is empty, resolves to
|
|
|
|
/// `std::false_type`.
|
|
|
|
///
|
2022-03-08 16:24:38 +00:00
|
|
|
/// `ListAny` also accepts an optional second argument that is a template that is a predicate
|
|
|
|
/// applied to each item in the input list before checking for the `value` type.
|
|
|
|
///
|
|
|
|
/// ```cpp
|
|
|
|
/// using NumberList1 = vtkm::List<int, float>;
|
|
|
|
/// using NumberList2 = vtkm::List<float, double>;
|
|
|
|
///
|
|
|
|
/// // Resolves to std::true_type
|
|
|
|
/// using AnyInt1 = vtkm::ListAny<NumberList1, std::is_integral>;
|
|
|
|
///
|
|
|
|
/// // Resolves to std::false_type
|
|
|
|
/// using AnyInt2 = vtkm::ListAny<NumberList2, std::is_integral>;
|
|
|
|
/// ```
|
|
|
|
///
|
|
|
|
template <typename List, template <typename> class Predicate = vtkm::internal::meta::Identity>
|
|
|
|
using ListAny =
|
|
|
|
vtkm::ListReduce<vtkm::ListTransform<List, Predicate>, vtkm::internal::meta::Or, std::false_type>;
|
2022-02-09 18:27:30 +00:00
|
|
|
|
2022-02-10 22:50:31 +00:00
|
|
|
#undef VTKM_CHECK_LIST_SIZE
|
|
|
|
|
2019-12-04 14:30:47 +00:00
|
|
|
} // namespace vtkm
|
|
|
|
|
|
|
|
#endif //vtk_m_List_h
|