(painfully) constify colls.

[simgrid.git] / 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 6978a46..0a45358 100644 (file)
--- 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;