sanitize sanity check

git-svn-id: https://svn.dealii.org/trunk@10379 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/deal.II/source/dofs/dof_tools.cc b/deal.II/deal.II/source/dofs/dof_tools.cc
index bd9a2c40cfa7e56f220c4006c7d9da3fd8edc996..9728a3d8f5c02b7c0184b0b0bc547b2e505136ac 100644 (file)
--- a/deal.II/deal.II/source/dofs/dof_tools.cc
+++ b/deal.II/deal.II/source/dofs/dof_tools.cc
@@ -2355,7 +2355,7 @@ DoFTools::compute_intergrid_weights_1 (
       for (unsigned int row=0; row<n_coarse_dofs; ++row)
        if (weights[row].find(col) != weights[row].end())
          sum += weights[row][col];
-      Assert ((sum==1) ||
+      Assert ((std::fabs(sum-1) < 1.e-12) ||
              ((coarse_fe.n_components()>1) && (sum==0)), ExcInternalError());
     };
 #endif