Make a piece of code work for std::complex data types.

diff --git a/include/deal.II/lac/la_parallel_block_vector.templates.h b/include/deal.II/lac/la_parallel_block_vector.templates.h
index 2086e6518e1e4329eedab1f87eb75ff243293cb1..8d266fa6df49d93653e11301d2c060ce788ceb40 100644 (file)
--- a/include/deal.II/lac/la_parallel_block_vector.templates.h
+++ b/include/deal.II/lac/la_parallel_block_vector.templates.h
@@ -830,7 +830,7 @@ namespace LinearAlgebra
               dealii::ExcDimensionMismatch(matrix.n(),n));
 
       // reset the matrix
-      matrix = Number();
+      matrix = typename FullMatrixType::value_type(0.0);
 
       set_symmetric(matrix, symmetric);
       if (symmetric)