- explicit VirtualMachine(const char* name, s4u::Host* physical_host, int core_amount);
- explicit VirtualMachine(const char* name, s4u::Host* physical_host, int core_amount, size_t ramsize);
+ explicit VirtualMachine(std::string name, s4u::Host* physical_host, int core_amount);
+ explicit VirtualMachine(std::string name, s4u::Host* physical_host, int core_amount, size_t ramsize);