Objectives :

• Pointer FAQ
• Computer memory addressing
• Pointer to Variables
  • defining pointer
    type *ptr1;
    int *ptr1;
  • Address operator or Reference Operator (&)
    int n1, age, var1;
    int *ptr1 = &n1; // pointing to the address of n1
    // when a pointer contains as address value, is also called as indirection operator
    age = &var1
  • deference pointer
    age = *n1
  • void pointers ( allowing exchange values between two data types;
     

Member access operators:
– Dot operator (.) for structures and objects
– Arrow operator (->) for pointers
– Print member hour of timeObject:
cout << timeObject.hour;
OR
timePtr = &timeObject; //
cout << timePtr->hour;
– timePtr->hour is the same as ( *timePtr ).hour
– Parentheses required: * has lower precedence than .