Thread: Reference or Pointer

Would someone be able to tell me which of these methods of passing data is this best? Thanks.

Code:

#include <iostream.h>

const int MAX_TYPES=2, MAX_LEN=10;

void Test(int *, const char [MAX_TYPES][MAX_LEN], const int);

int main(void)
{
  const char TYPE[MAX_TYPES][MAX_LEN]={{"Reference"},{"Pointer"}};
  const int REF=0, POINT=1;
  int Num, *NumPointer=&Num;

  cout << "Enter number: ";
  cin >> Num;

  Test(&Num, TYPE, REF);
  Test(NumPointer, TYPE, POINT);

  return 0;
}

void Test(int *Test, const char Type[MAX_TYPES][MAX_LEN], const int TypeCat)
{
  cout << "\nAddress of test: " << Test << ".\nValue of test: " << *Test
       << " (passing by " << Type[TypeCat] << ").\n";
  cin.get();
}

C++ programmers strongly prefer references to pointers. References are cleaner and easier to use, and they do a better job of hiding information.

References cannot be reassigned, however. If you need to point first to one object and then another, you must use a pointer. References cannot be null, so if there is any chance that the object in question may be null, you must not use a reference. You must use a pointer

this was borrowed from "teach yourself c++ in 21 days"

i hope its clear for u

Thanks for your replies. I think it's a matter of choice rather than requirement whether to use one or the other, in most cases.

Originally posted by subdene
Thanks for your replies. I think it's a matter of choice rather than requirement whether to use one or the other, in most cases.

It's a choice in C++ , in C you do not have a choice you must use pointers.