From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Mon, 8 Oct 2018 11:48:04 +0000 (+0200)
Subject: Fix DEAL_II_MPI_CONST_CAST
X-Git-Tag: v9.1.0-rc1~649^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb1022d106a89dc1d17765f615c106c239435881;p=dealii.git

Fix DEAL_II_MPI_CONST_CAST
---

diff --git a/include/deal.II/base/mpi.h b/include/deal.II/base/mpi.h
index 359208c7d1..386118ff55 100644
--- a/include/deal.II/base/mpi.h
+++ b/include/deal.II/base/mpi.h
@@ -49,7 +49,8 @@ using MPI_Op       = int;
 
 
 
-/** Helper macro to remove const from the pointer arguments to some MPI_*
+/**
+ * Helper macro to remove const from the pointer arguments to some MPI_*
  * functions.
  *
  * This is needed as the input arguments of functions like MPI_Allgather() are
@@ -70,10 +71,9 @@ using MPI_Op       = int;
 
 #    include <type_traits>
 
-#    define DEAL_II_MPI_CONST_CAST(expr)                                       \
-      const_cast<                                                              \
-        std::remove_const<std::remove_pointer<decltype(expr)>::type>::type *>( \
-        expr)
+#    define DEAL_II_MPI_CONST_CAST(expr)     \
+      const_cast<typename std::remove_const< \
+        typename std::remove_pointer<decltype(expr)>::type>::type *>(expr)
 
 #  endif
 #endif