Avoid warning about unused variable

diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index 874b71c4db67410d9d834c9ee1693cbf27111a69..ba253fc8c0e7ec921436444919b2eab16d73420c 100644 (file)
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -1246,6 +1246,7 @@ Iterator
 Tensor<0, dim, Number>::unroll_recursion(const Iterator current,
                                          const Iterator end) const
 {
+  (void)end;
   Assert(dim != 0,
          ExcMessage("Cannot unroll an object of type Tensor<0,0,Number>"));
   Assert(std::distance(current, end) >= 1,