use of array float[4] as datatype for SparseArray

[FlyingCat2023]

Here is the datatype being used.
using DataTypes = Cabana::MemberTypes< float[4],
int,>;
The SparseArray is created and its data is visited by codes below.
auto grid_array = Cabana::Grid::Experimental::createSparseArrayKokkos::OpenMP("grid data structure", layout );
int tile_id = 0;
int cell_id = 0;
auto&& data = grid_array->get<0>(tile_id, cell_id);
The compilation error is below.
/usr/local/cabana/include/Cabana_SoA.hpp: In instantiation of ‘typename std::enable_if<Cabana::is_soa<SoA_t>::value, typename SoA_t::member_reference_type >::type Cabana::get(SoA_t&, std::size_t) [with long unsigned int M = 0; SoA_t = Cabana::SoA<Cabana::MemberTypes<float [4], int>, 64>; typename std::enable_if<Cabana::is_soa<SoA_t>::value, typename SoA_t::member_reference_type >::type = float&; typename SoA_t::member_reference_type = float&; std::size_t = long unsigned int]’:
/usr/local/cabana/include/Cabana_Grid_SparseArray.hpp:651:30: required from ‘typename Cabana::Grid::Experimental::SparseArray<DataTypes, MemorySpace, EntityType, MeshType, SparseMapType>::soa_type::member_reference_type Cabana::Grid::Experimental::SparseArray<DataTypes, MemorySpace, EntityType, MeshType, SparseMapType>::get(int, int) const [with long unsigned int M = 0; DataTypes = Cabana::MemberTypes<float [4], int>; MemorySpace = Kokkos::OpenMP; EntityType = Cabana::Grid::Node; MeshType = Cabana::Grid::SparseMesh<double, 3>; SparseMapType = Cabana::Grid::SparseMap<Kokkos::HostSpace, 4, Cabana::Grid::HashTypes::Morton>; typename Cabana::Grid::Experimental::SparseArray<DataTypes, MemorySpace, EntityType, MeshType, SparseMapType>::soa_type::member_reference_type = float&; Cabana::Grid::Experimental::SparseArray<DataTypes, MemorySpace, EntityType, MeshType, SparseMapType>::soa_type = Cabana::SoA<Cabana::MemberTypes<float [4], int>, 64>]’
/home/jianl/projects/Zeros_MPM/cabana_thgrid/unit_test/grid_array/utest_grid_array.cpp:63:37: required from here
/usr/local/cabana/include/Cabana_SoA.hpp:182:47: error: invalid initialization of non-const reference of type ‘std::enable_if<true, float&>::type’ {aka ‘float&’} from an rvalue of type ‘Cabana::Impl::InnerArrayTypeImpl<float [4], 1, 64>::value_type’ {aka ‘float*’}
182 | return Impl::soaMemberCast( soa )._data[a];
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
make[2]: *** [unit_test/grid_array/CMakeFiles/test_grid_array.dir/build.make:76: unit_test/grid_array/CMakeFiles/test_grid_array.dir/utest_grid_array.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:456: unit_test/grid_array/CMakeFiles/test_grid_array.dir/all] Error 2
make: *** [Makefile:146: all] Error 2

[FlyingCat2023]

Complete codes.

using exec_space = Kokkos::DefaultHostExecutionSpace;
using device_type = exec_space::device_type;
using MemorySpace = Kokkos::HostSpace;
using DataTypes = Cabana::MemberTypes<  float[4], 
                                        int>;
using SparseMapType = Cabana::Grid::SparseMap<MemorySpace, 4, Cabana::Grid::HashTypes::Morton>;
Cabana::Grid::DimBlockPartitioner<3> partitioner;
int cell_num_per_tile_dim = 128;
int halo_width = 2;
int dofs_per_node = 4;
double cell_size = 0.50;
std::array<int, 3> block_size = {4, 4, 4};
std::array<int, 3> global_num_cell = { 37, 15, 20 };
std::array<bool, 3> is_dim_periodic = { false, false, false };
std::array<double, 3> global_low_corner = { 1.2, 3.3, -2.8 };
std::array<double, 3> global_high_corner = {
    global_low_corner[0] + cell_size * global_num_cell[0],
    global_low_corner[1] + cell_size * global_num_cell[1],
    global_low_corner[2] + cell_size * global_num_cell[2] };
auto sparse_mesh = Cabana::Grid::createSparseGlobalMesh(
    global_low_corner, global_high_corner, global_num_cell );
auto sparse_grid = Cabana::Grid::createGlobalGrid(
                                        MPI_COMM_WORLD, sparse_mesh, is_dim_periodic, partitioner );    
SparseMapType sparse_map(block_size, 1600);
auto local_grid = Cabana::Grid::Experimental::createSparseLocalGrid( sparse_grid,
                                         halo_width,
                                         cell_num_per_tile_dim );     
auto layout = Cabana::Grid::Experimental::createSparseArrayLayout<DataTypes>(
                                local_grid, 
                                sparse_map, 
                                Cabana::Grid::Node());                                
auto grid_array = Cabana::Grid::Experimental::createSparseArray<Kokkos::OpenMP>("grid data structure", *layout );  
int tile_id = 0; 
int cell_id = 0;
auto&& data = grid_array->get<0>(tile_id, cell_id); 

[streeve]

Sorry, I missed this (I think I conflated it with your next issue).

I'll see if I can reproduce and get back to you