C++ Pointers

The statement :

remove p;

deallocates the dynamic variable that is pointed to by p.

• True

• False

What is the operator used for dereferencing or indirection?

• *

• &

• %

• &&

Specify whether the statement below is valid or invalid.

int i;

double * dp = &i;

• Valid

• Invalid

A pointer variable store a/an

• value of another value.

• value of another variable.

• address of another pointer.

• address of another variable.

A variable pointed to by xAddr is

• *ptr

• *xAddr

• &xAddr

• +xAddr

Given the following declarations:

int i;

int *pi;

double d;

double *pd;

Specify whether the statements below is valid or invalid.

pi = &i;

• Valid

• Invalid

What does this command do?.

• Creates a pointer of type integer that is initially pointing to null.

• Creates a pointer of type integer that is initially pointing to 0.

• Creates a pointer in the heap

• None of the answers are valid

Do you have to reset a pointer after delete?.

• Yes

• No

Each of the following statements is true about pointer EXCEPT:

• Pointer variables contain the addresses of other variables as their values.

• In C++, no name is associated with the pointer data type.

• The only arithmetic operations allowed on pointer variable s are increment (++), decrement (--), addition of an integer to a pointer variable and subtraction of a pointer from another pointer.

• When used as a unary operator, & is called the dereferencing operator.

What is the output of the following program segment?

• 9

• 10

• 11

• 12