From: David Wells Date: Thu, 17 May 2018 22:00:42 +0000 (-0400) Subject: Exit a function early if there are no DoFs. X-Git-Tag: v9.1.0-rc1~1132^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6621%2Fhead;p=dealii.git Exit a function early if there are no DoFs. The debug mode of glibc complains that, with FE_Nothing, we end up doing an invalid array access below. Avoid that by returning early if there is nothing to do anyway. --- diff --git a/include/deal.II/dofs/dof_accessor.templates.h b/include/deal.II/dofs/dof_accessor.templates.h index 0ce19502a8..b584743738 100644 --- a/include/deal.II/dofs/dof_accessor.templates.h +++ b/include/deal.II/dofs/dof_accessor.templates.h @@ -2832,11 +2832,12 @@ namespace internal void update_cell_dof_indices_cache (const DoFCellAccessor, level_dof_access> &accessor) { - // caches are only for cells with DoFs, i.e., for active ones + // caches are only for cells with DoFs, i.e., for active ones and not FE_Nothing if (accessor.has_children()) return; - const unsigned int dofs_per_cell = accessor.get_fe().dofs_per_cell; + if (dofs_per_cell == 0) + return; // make sure the cache is at least // as big as we need it when