Do not mark a pointer as 'mutable' where not necessary.

diff --git a/include/deal.II/lac/trilinos_sparsity_pattern.h b/include/deal.II/lac/trilinos_sparsity_pattern.h
index b29175d374dbadf352bfd2a58fb81a28c66a06a8..0b219eec3a0dcd252446000eb729b144d7e2ecdd 100644 (file)
--- a/include/deal.II/lac/trilinos_sparsity_pattern.h
+++ b/include/deal.II/lac/trilinos_sparsity_pattern.h
@@ -124,7 +124,7 @@ namespace TrilinosWrappers
       /**
        * The matrix accessed.
        */
-      mutable SparsityPattern *sparsity_pattern;
+      SparsityPattern *sparsity_pattern;
 
       /**
        * Current row number.