XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_vm, surf, "Logging specific to the SURF VM module");
-simgrid::surf::VMModel *surf_vm_model = NULL;
+simgrid::surf::VMModel *surf_vm_model = nullptr;
namespace simgrid {
namespace surf {
************/
VirtualMachine::VirtualMachine(HostModel *model, const char *name, simgrid::s4u::Host *hostPM)
-: HostImpl(model, name, NULL, NULL, NULL)
+: HostImpl(model, name, nullptr, nullptr, nullptr)
, hostPM_(hostPM)
{
VMModel::ws_vms.push_back(*this);