[sonar] Use unsigned char* for smpi buffers.

[simgrid.git] / src / smpi / colls / allreduce / allreduce-rdb.cpp

diff --git a/src/smpi/colls/allreduce/allreduce-rdb.cpp b/src/smpi/colls/allreduce/allreduce-rdb.cpp
index a7ee1d1..6041a42 100644 (file)
--- a/src/smpi/colls/allreduce/allreduce-rdb.cpp
+++ b/src/smpi/colls/allreduce/allreduce-rdb.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
@@ -8,14 +8,13 @@
 //#include <star-reduction.c>
 namespace simgrid{
 namespace smpi{
-int Coll_allreduce_rdb::allreduce(void *sbuff, void *rbuff, int count,
+int Coll_allreduce_rdb::allreduce(const void *sbuff, void *rbuff, int count,
                                   MPI_Datatype dtype, MPI_Op op, MPI_Comm comm)
 {
   int nprocs, rank, tag = COLL_TAG_ALLREDUCE;
   int mask, dst, pof2, newrank, rem, newdst;
   MPI_Aint extent, lb;
   MPI_Status status;
-  void *tmp_buf = NULL;
   /*
      #ifdef MPICH2_REDUCTION
      MPI_User_function * uop = MPIR_Op_table[op % 16 - 1];
@@ -30,7 +29,7 @@ int Coll_allreduce_rdb::allreduce(void *sbuff, void *rbuff, int count,
   rank=comm->rank();
 
   dtype->extent(&lb, &extent);
-  tmp_buf = (void *) smpi_get_tmp_sendbuffer(count * extent);
+  unsigned char* tmp_buf = smpi_get_tmp_sendbuffer(count * extent);
 
   Request::sendrecv(sbuff, count, dtype, rank, 500,
                rbuff, count, dtype, rank, 500, comm, &status);