X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/77bbf3027c4240a2e833209a3a3f186589da8577..488dda0c43d26f0a770e1d5b47f73148e153949b:/src/smpi/colls/allreduce/allreduce-rab2.cpp

diff --git a/src/smpi/colls/allreduce/allreduce-rab2.cpp b/src/smpi/colls/allreduce/allreduce-rab2.cpp
index 6978a46f7d..0a45358480 100644
--- a/src/smpi/colls/allreduce/allreduce-rab2.cpp
+++ b/src/smpi/colls/allreduce/allreduce-rab2.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2017. The SimGrid Team.
+/* Copyright (c) 2013-2019. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -10,7 +10,7 @@
 namespace simgrid{
 namespace smpi{
 // this requires that count >= NP
-int Coll_allreduce_rab2::allreduce(void *sbuff, void *rbuff,
+int Coll_allreduce_rab2::allreduce(const void *sbuff, void *rbuff,
                                    int count, MPI_Datatype dtype,
                                    MPI_Op op, MPI_Comm comm)
 {
@@ -62,7 +62,7 @@ int Coll_allreduce_rab2::allreduce(void *sbuff, void *rbuff,
     smpi_free_tmp_buffer(tmp);
     smpi_free_tmp_buffer(send);
   } else {
-    send = sbuff;
+    send = const_cast<void*>(sbuff);
     send_size = count / nprocs;
     nbytes = send_size * s_extent;
     r_offset = rank * nbytes;