C++ pointers

Which one of these is the indirection operator?

• &

• >>

• <<

• *

What will be the output of this piece of code?

• 13

• 3

• Syntax error

• none of the given options

What will be the output of this piece of code?

• 15

• 5

• 8

• This is too confusing

What will be the output of this piece of code?

• Value of constant pointer (const) cannot be changed

• Variable value cannot be used to initialise the pointer

• 12

• 24

A function may return a pointer but the programmer must ensure that the pointer

• still points to a valid object after the function ends

• has not been assigned an address

• was received as a parameter by the function

• has not previously been returned by another function

Use the delete operator only on pointers that were

• never used

• not correctly initialized

• created with the new operator

• dereferenced inappropriately

Dynamic memory allocation occurs

• when a new variable is created by the compiler

• when a new variable is created at runtime

• when a pointer fails to dereference the right variable

• when a pointer is assigned an incorrect address

What would be the output of this piece of code?

• A random value such as the address of arr[1]

• 5

• 10

• 15