Pointer Initialization

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Created by
Marc

Cards (10)

  • Pointer Initialization Syntax:
    dataType *pointerName = &variableName;
    where:
    • & - the ampersand (&) symbol is used to get the memory address of a variable called as address-of operator.
    • variableName - is a unique identifier name for the that has the same data type as the pointer variable.
  • Pointer Initialization Syntax:
    dataType *pointerName = &variableName;
    where:
    • & - the ampersand (&) symbol is used to get the memory address of a variable called as address-of operator.
    • variableName - is a unique identifier name for the that has the same data type as the pointer variable.
  • Pointer Initialization Syntax:
    dataType *pointerName = &variableName;
    where:
    • & - the ampersand (&) symbol is used to get the memory address of a variable called as address-of operator.
    • variableName - is a unique identifier name for the that has the same data type as the pointer variable.
  • Pointer Initialization Syntax:
    dataType *pointerName = &variableName;
    where:
    • & - the ampersand (&) symbol is used to get the memory address of a variable called as address-of operator.
    • variableName - is a unique identifier name for the that has the same data type as the pointer variable.
  • int *ptrInt = 0; /* ptrInt doesn’t point to any valid memory location, 0 is the only integer value can be used to assign an empty pointer address */
  • int *ptrInt = 0; /* ptrInt doesn’t point to any valid memory location, 0 is the only integer value can be used to assign an empty pointer address */
  • int *ptrInt = NULL; or int *ptrInt = nullptr; // NULL and nullptr are reserved words that doesn’t point to any valid memory location like 0 */
  • int *ptrInt = NULL; or int *ptrInt = nullptr; // NULL and nullptr are reserved words that doesn’t point to any valid memory location like 0 */
  • int num;
    int *ptrInt = #
    // ptrInt holds the address of num variable using address-of (&) operator
  • int num;
    int *ptrInt = #
    // ptrInt holds the address of num variable using address-of (&) operator