X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/611d822b02f836d7abe031cced6adc4281ef4356..6633f5c4d1b7d52fa54306ee3fb7eb573daeb274:/src/smpi/colls/reduce/reduce-binomial.cpp

diff --git a/src/smpi/colls/reduce/reduce-binomial.cpp b/src/smpi/colls/reduce/reduce-binomial.cpp
index 196e9faa1d..352523146e 100644
--- a/src/smpi/colls/reduce/reduce-binomial.cpp
+++ b/src/smpi/colls/reduce/reduce-binomial.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2018. 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 @@
 //#include <star-reduction.c>
 namespace simgrid{
 namespace smpi{
-int Coll_reduce_binomial::reduce(void *sendbuf, void *recvbuf, int count,
+int Coll_reduce_binomial::reduce(const void *sendbuf, void *recvbuf, int count,
                                     MPI_Datatype datatype, MPI_Op op, int root,
                                     MPI_Comm comm)
 {
@@ -20,7 +20,6 @@ int Coll_reduce_binomial::reduce(void *sendbuf, void *recvbuf, int count,
   int dst;
   int tag = COLL_TAG_REDUCE;
   MPI_Aint extent;
-  void *tmp_buf;
   MPI_Aint true_lb, true_extent;
   if (count == 0)
     return 0;
@@ -29,7 +28,7 @@ int Coll_reduce_binomial::reduce(void *sendbuf, void *recvbuf, int count,
 
   extent = datatype->get_extent();
 
-  tmp_buf = (void *) smpi_get_tmp_sendbuffer(count * extent);
+  unsigned char* tmp_buf = smpi_get_tmp_sendbuffer(count * extent);
   int is_commutative =  (op==MPI_OP_NULL || op->is_commutative());
   mask = 1;
 
@@ -43,7 +42,7 @@ int Coll_reduce_binomial::reduce(void *sendbuf, void *recvbuf, int count,
   datatype->extent(&true_lb, &true_extent);
 
   /* adjust for potential negative lower bound in datatype */
-  tmp_buf = (void *)((char*)tmp_buf - true_lb);
+  tmp_buf = tmp_buf - true_lb;
 
   /* If I'm not the root, then my recvbuf may not be valid, therefore
      I have to allocate a temporary one */
@@ -87,7 +86,7 @@ int Coll_reduce_binomial::reduce(void *sendbuf, void *recvbuf, int count,
   }
 
   if (rank != root) {
-    smpi_free_tmp_buffer(recvbuf);
+    smpi_free_tmp_buffer(static_cast<unsigned char*>(recvbuf));
   }
   smpi_free_tmp_buffer(tmp_buf);