Use an unsigned int iterator variable.

git-svn-id: https://svn.dealii.org/trunk@28324 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/source/lac/chunk_sparsity_pattern.cc b/deal.II/source/lac/chunk_sparsity_pattern.cc
index 49fd1bc3a5b78cf04d2f29d7c880c68ac8d30712..8ead11c07947ae6bb5f8ae79cf1f2d422c851700 100644 (file)
--- a/deal.II/source/lac/chunk_sparsity_pattern.cc
+++ b/deal.II/source/lac/chunk_sparsity_pattern.cc
@@ -487,7 +487,7 @@ ChunkSparsityPattern::n_nonzero_elements () const
          // rather than all elements
          unsigned int n = 0;
 
-         for (int row = 0; row < n_rows(); ++row)
+         for (unsigned int row = 0; row < n_rows(); ++row)
            {
              SparsityPattern::const_iterator p = sparsity_pattern.begin(row);
              for (; p!=sparsity_pattern.end(row); ++p)