Iterator filter predicates for boundary and manifold IDs #13154
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bangerth
approved these changes
Dec 30, 2021
| std::size_t n_boundary_filtered_cells = 0; | ||
| for (const auto &filtered_cell : | ||
| tria.active_face_iterators() | IteratorFilters::AtBoundary() | | ||
| IteratorFilters::BoundaryIdEqualTo(boundary_id)) |
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Yeah, I'm really happy that you implemented operator|. It's so nice to chain these filters!
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I really like that syntax. It's been used on the unix command line for 50 years, of course, and I like that we'll be able to use it in C++ as well (or at least will be with C++20).
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/rebuild |
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