(painfully) constify colls.

[simgrid.git] / src / smpi / colls / alltoall / alltoall-2dmesh.cpp

diff --git a/src/smpi/colls/alltoall/alltoall-2dmesh.cpp b/src/smpi/colls/alltoall/alltoall-2dmesh.cpp
index 03f0a87..e27e5de 100644 (file)
--- a/src/smpi/colls/alltoall/alltoall-2dmesh.cpp
+++ b/src/smpi/colls/alltoall/alltoall-2dmesh.cpp
@@ -55,7 +55,7 @@ static int alltoall_check_is_2dmesh(int num, int *i, int *j)
 namespace simgrid{
 namespace smpi{
 
-int Coll_alltoall_2dmesh::alltoall(void *send_buff, int send_count,
+int Coll_alltoall_2dmesh::alltoall(const void *send_buff, int send_count,
                                     MPI_Datatype send_type,
                                     void *recv_buff, int recv_count,
                                     MPI_Datatype recv_type, MPI_Comm comm)