-/* Copyright (c) 2010-2019. The SimGrid Team.
+/* Copyright (c) 2010-2020. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
std::vector<int> index_to_rank_map_;
int refcount_ = 1; /* refcount_: start > 0 so that this group never gets freed */
+
public:
Group() = default;
explicit Group(int size) : size_(size), rank_to_actor_map_(size, nullptr), index_to_rank_map_(size, MPI_UNDEFINED) {}