Use const reference instead of rvalue

diff --git a/source/base/hdf5.cc b/source/base/hdf5.cc
index a7f2c2763c1e67e37f611c9ad755543b98034289..d447ac3d3debef644c8a1a0c67b2d323eaa771ad 100644 (file)
--- a/source/base/hdf5.cc
+++ b/source/base/hdf5.cc
@@ -564,7 +564,7 @@ namespace HDF5
     free(dims);
 
     size = 1;
-    for (auto &&dimension : dimensions)
+    for (const auto &dimension : dimensions)
       {
         size *= dimension;
       }
@@ -609,7 +609,7 @@ namespace HDF5
     Assert(*hdf5_reference >= 0, ExcMessage("Error at H5Dcreate2"));
 
     size = 1;
-    for (auto &&dimension : dimensions)
+    for (const auto &dimension : dimensions)
       {
         size *= dimension;
       }