Question

I have a class Con as this:-

class Con
{
 public:
  struct MachineList
  {
    BSTR AccountId;
    BSTR MachineId;
    BSTR Make;
    char* Make1;
    BSTR Model;
    char* Model1;
    BSTR SerialNumber;
    BSTR IpAddress;
    char* IpAddress1;
    BSTR Port;
    int Port1;
    BSTR LocationCode;
    } machinelist[100] ;
   int w;
 } ;

i created an object of Con class as Con m_con;

I have another class Test

class Test
{
 public:
  void fun();//i want to pass the object of the structure that i created in Con
  //what arguments should i pass in fun function?
};

Answer 1

class Con {
public:
   struct Machine {
      BSTR  AccountId;
      BSTR  MachineId;
      BSTR  Make;
      char* Make1;
      BSTR  Model;
      char* Model1;
      BSTR  SerialNumber;
      BSTR  IpAddress;
      char* IpAddress1;
      BSTR  Port;
      int   Port1;
      BSTR  LocationCode;
   };
   typedef Machine Machines[100];

   Machines machines;
   int      w;
};

/**
 * passing a reference to a single machine, which fun might change
 */
void fun0( Con::Machine & machine );

/**
 * passing a reference to a single machine, which fun cannot change
 */
void fun1( const Con::Machine & machine );

/**
 * passing a reference to the entire array of machines, which fun may change
 */
void fun2( Con::Machines & machines );

/**
 * passing a reference to the entire array of machines, which fun cannot change
 */
void fun3( const Con::Machines & machines );

I don’t understand which version of fun you want so I have made four…