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Undefined call to cell_num_entities for point meshes. #3974

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Undefined call to cell_num_entities for point meshes. #3974

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6 changes: 5 additions & 1 deletion cpp/dolfinx/mesh/permutationcomputation.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -291,7 +291,11 @@ mesh::compute_entity_permutations(const mesh::Topology& topology)
const int tdim = topology.dim();
CellType cell_type = topology.cell_type();
const std::int32_t num_cells = topology.connectivity(tdim, 0)->num_nodes();
const int facets_per_cell = cell_num_entities(cell_type, tdim - 1);
// Point meshes have no facets per cell and cell_num_entities(vertex, -1) is
// undefined
int facets_per_cell = 0;
if (tdim > 0)
facets_per_cell = cell_num_entities(cell_type, tdim - 1);

std::vector<std::uint32_t> cell_permutation_info(num_cells, 0);
std::vector<std::uint8_t> facet_permutations(num_cells * facets_per_cell);
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