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Fix for when find_elements returns null elements #4462

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Merged
roystgnr merged 1 commit into from
May 20, 2026
+9 −0
Merged

Fix for when find_elements returns null elements #4462

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9 changes: 9 additions & 0 deletions src/mesh/mesh_function.C
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Original file line number Diff line number Diff line change
Expand Up @@ -405,6 +405,15 @@ void MeshFunction::discontinuous_value (const Point & p,
// empty map
for (const auto & element : candidate_element)
{
if (!element)
{
// We'd better be in out_of_mesh_mode if we couldn't find an
// element in the mesh
libmesh_assert (_out_of_mesh_mode);
output[element] = _out_of_mesh_value;
continue;
}

const unsigned int dim = element->dim();

// define a temporary vector to store all values
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