From: David Wells <drwells@email.unc.edu>
Date: Fri, 5 Apr 2019 21:07:43 +0000 (-0400)
Subject: Silence an unused variable warning.
X-Git-Tag: v9.1.0-rc1~217^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7894%2Fhead;p=dealii.git

Silence an unused variable warning.
---

diff --git a/source/base/hdf5.cc b/source/base/hdf5.cc
index 75e4549723..bd13d4adeb 100644
--- a/source/base/hdf5.cc
+++ b/source/base/hdf5.cc
@@ -267,10 +267,10 @@ namespace HDF5
       if (mpi)
         {
 #  ifdef DEAL_II_WITH_MPI
-          herr_t ret;
           plist = H5Pcreate(H5P_DATASET_XFER);
           Assert(plist >= 0, ExcInternalError());
-          ret = H5Pset_dxpl_mpio(plist, H5FD_MPIO_COLLECTIVE);
+          const herr_t ret = H5Pset_dxpl_mpio(plist, H5FD_MPIO_COLLECTIVE);
+          (void)ret;
           Assert(ret >= 0, ExcInternalError());
 #  else
           AssertThrow(false, ExcNotImplemented());
@@ -304,6 +304,7 @@ namespace HDF5
         {
 #  ifdef DEAL_II_WITH_MPI
           herr_t ret;
+          (void)ret;
           if (query_io_mode)
             {
               ret = H5Pget_mpio_actual_io_mode(plist, &io_mode);