| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | ||
| 2 | // vi: set et ts=4 sw=4 sts=4: | ||
| 3 | // | ||
| 4 | // SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder | ||
| 5 | // SPDX-License-Identifier: GPL-3.0-or-later | ||
| 6 | // | ||
| 7 | /*! | ||
| 8 | * \file | ||
| 9 | * \ingroup Core | ||
| 10 | * \brief Get only parts of a container or tuple | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_COMMON_PARTIAL_HH | ||
| 13 | #define DUMUX_COMMON_PARTIAL_HH | ||
| 14 | |||
| 15 | #include <tuple> | ||
| 16 | #include <type_traits> | ||
| 17 | |||
| 18 | #include <dune/istl/multitypeblockvector.hh> | ||
| 19 | |||
| 20 | namespace Dumux { | ||
| 21 | |||
| 22 | /*! | ||
| 23 | * \brief a function to get a MultiTypeBlockVector with references to some entries of another MultiTypeBlockVector | ||
| 24 | * \param v a MultiTypeBlockVector | ||
| 25 | * \param indices the indices of the entries that should be referenced | ||
| 26 | */ | ||
| 27 | template<class ...Args, std::size_t ...i> | ||
| 28 | ✗ | auto partial(Dune::MultiTypeBlockVector<Args...>& v, Dune::index_constant<i>... indices) | |
| 29 | { | ||
| 30 |
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118 | return Dune::MultiTypeBlockVector<std::add_lvalue_reference_t<std::decay_t<std::tuple_element_t<indices, std::tuple<Args...>>>>...>(v[indices]...); |
| 31 | } | ||
| 32 | |||
| 33 | /*! | ||
| 34 | * \brief a function to get a MultiTypeBlockVector with const references to some entries of another MultiTypeBlockVector | ||
| 35 | * \param v a MultiTypeBlockVector | ||
| 36 | * \param indices the indices of the entries that should be referenced | ||
| 37 | */ | ||
| 38 | template<class ...Args, std::size_t ...i> | ||
| 39 | ✗ | auto partial(const Dune::MultiTypeBlockVector<Args...>& v, Dune::index_constant<i>... indices) | |
| 40 | { | ||
| 41 |
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4 | return Dune::MultiTypeBlockVector<std::add_lvalue_reference_t<const std::decay_t<std::tuple_element_t<indices, std::tuple<Args...>>>>...>(v[indices]...); |
| 42 | } | ||
| 43 | |||
| 44 | /*! | ||
| 45 | * \brief a function to get a tuple with references to some entries of another tuple | ||
| 46 | * \param v a tuple | ||
| 47 | * \param indices a tuple of indices of the entries that should be referenced | ||
| 48 | */ | ||
| 49 | template<class ...Args, std::size_t ...i> | ||
| 50 | ✗ | auto partial(std::tuple<Args...>& v, Dune::index_constant<i>... indices) | |
| 51 | { | ||
| 52 |
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6 | return std::tuple<std::add_lvalue_reference_t<std::decay_t<std::tuple_element_t<indices, std::tuple<Args...>>>>...>(std::get<indices>(v)...); |
| 53 | } | ||
| 54 | |||
| 55 | /*! | ||
| 56 | * \brief a function to get a tuple with const references to some entries of another tuple | ||
| 57 | * \param v a tuple | ||
| 58 | * \param indices a tuple of indices of the entries that should be referenced | ||
| 59 | */ | ||
| 60 | template<class ...Args, std::size_t ...i> | ||
| 61 | ✗ | auto partial(const std::tuple<Args...>& v, Dune::index_constant<i>... indices) | |
| 62 | { | ||
| 63 |
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4 | return std::tuple<std::add_lvalue_reference_t<const std::decay_t<std::tuple_element_t<indices, std::tuple<Args...>>>>...>(std::get<indices>(v)...); |
| 64 | } | ||
| 65 | |||
| 66 | /*! | ||
| 67 | * \brief a function to get a MultiTypeBlockVector with references to some entries of another MultiTypeBlockVector | ||
| 68 | * \param t an std::tuple or Dune::MultiTypeBlockVector | ||
| 69 | * \param indices a tuple of indices of the entries that should be referenced | ||
| 70 | */ | ||
| 71 | template<class T, std::size_t ...i> | ||
| 72 | ✗ | auto partial(T& t, std::tuple<Dune::index_constant<i>...> indices) | |
| 73 | { | ||
| 74 |
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4 | return partial(t, Dune::index_constant<i>{}...); |
| 75 | } | ||
| 76 | |||
| 77 | } // end namespace Dumux | ||
| 78 | |||
| 79 | #endif | ||
| 80 |