xbt_dynar_foreach(vms, cpt, vm) {
sg_host_t vm_ = xbt_lib_get_elm_or_null(host_lib, vm->getName());
xbt_dynar_push(vms_, &vm_);
xbt_dynar_foreach(vms, cpt, vm) {
sg_host_t vm_ = xbt_lib_get_elm_or_null(host_lib, vm->getName());
xbt_dynar_push(vms_, &vm_);