1 /* 2 //@HEADER 3 // ************************************************************************ 4 // 5 // Kokkos v. 3.0 6 // Copyright (2020) National Technology & Engineering 7 // Solutions of Sandia, LLC (NTESS). 8 // 9 // Under the terms of Contract DE-NA0003525 with NTESS, 10 // the U.S. Government retains certain rights in this software. 11 // 12 // Redistribution and use in source and binary forms, with or without 13 // modification, are permitted provided that the following conditions are 14 // met: 15 // 16 // 1. Redistributions of source code must retain the above copyright 17 // notice, this list of conditions and the following disclaimer. 18 // 19 // 2. Redistributions in binary form must reproduce the above copyright 20 // notice, this list of conditions and the following disclaimer in the 21 // documentation and/or other materials provided with the distribution. 22 // 23 // 3. Neither the name of the Corporation nor the names of the 24 // contributors may be used to endorse or promote products derived from 25 // this software without specific prior written permission. 26 // 27 // THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY 28 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE 31 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 32 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 33 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 34 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 35 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 36 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 37 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38 // 39 // Questions? Contact Christian R. Trott (crtrott@sandia.gov) 40 // 41 // ************************************************************************ 42 //@HEADER 43 */ 44 45 #ifndef KOKKOS_KOKKOS_INDEXTYPETRAIT_HPP 46 #define KOKKOS_KOKKOS_INDEXTYPETRAIT_HPP 47 48 #include <Kokkos_Macros.hpp> 49 #include <Kokkos_Concepts.hpp> // IndexType, is_index_type 50 #include <traits/Kokkos_PolicyTraitAdaptor.hpp> 51 #include <traits/Kokkos_Traits_fwd.hpp> 52 53 namespace Kokkos { 54 namespace Impl { 55 56 //============================================================================== 57 // <editor-fold desc="trait specification"> {{{1 58 59 struct IndexTypeTrait : TraitSpecificationBase<IndexTypeTrait> { 60 struct base_traits { 61 static constexpr bool index_type_is_defaulted = true; 62 using index_type = dependent_policy_trait_default; 63 }; 64 template <class T> 65 using trait_matches_specification = 66 std::integral_constant<bool, std::is_integral<T>::value || 67 is_index_type<T>::value>; 68 }; 69 70 // </editor-fold> end trait specification }}}1 71 //============================================================================== 72 73 //============================================================================== 74 // <editor-fold desc="AnalyzeExecPolicy specializations"> {{{1 75 76 // Index type given as IndexType template 77 template <class IntegralIndexType, class... Traits> 78 struct AnalyzeExecPolicy<void, Kokkos::IndexType<IntegralIndexType>, Traits...> 79 : AnalyzeExecPolicy<void, Traits...> { 80 using base_t = AnalyzeExecPolicy<void, Traits...>; 81 using base_t::base_t; 82 static_assert(base_t::index_type_is_defaulted, 83 "Kokkos Error: More than one index type given"); 84 static constexpr bool index_type_is_defaulted = false; 85 using index_type = Kokkos::IndexType<IntegralIndexType>; 86 }; 87 88 // IndexType given as an integral type directly 89 template <class IntegralIndexType, class... Traits> 90 struct AnalyzeExecPolicy< 91 std::enable_if_t<std::is_integral<IntegralIndexType>::value>, 92 IntegralIndexType, Traits...> : AnalyzeExecPolicy<void, Traits...> { 93 using base_t = AnalyzeExecPolicy<void, Traits...>; 94 using base_t::base_t; 95 static_assert(base_t::index_type_is_defaulted, 96 "Kokkos Error: More than one index type given"); 97 static constexpr bool index_type_is_defaulted = false; 98 using index_type = Kokkos::IndexType<IntegralIndexType>; 99 }; 100 101 // </editor-fold> end AnalyzeExecPolicy specializations }}}1 102 //============================================================================== 103 104 } // end namespace Impl 105 } // end namespace Kokkos 106 107 #endif // KOKKOS_KOKKOS_INDEXTYPETRAIT_HPP 108