College Computing Chapter 9 Quiz

What will the following code output? int *numbers = new int[5]; for (int i = 0; i <= 4; i++) *(numbers + i) = i; cout << numbers[2] << endl;

Look at the following statement: sum += *array++; This statement...

Dynamic memory allocation occurs

These can be used as pointers....

Which of the following statements deletes memory that has been dynamically allocated for an array?

True/False: With pointer variables you can access, but you cannot modify, data in other

A pointer may be initialized with

Which of the following statements is not valid C++ code?

What will the following statement output? cout << &num1;

What does the following statement do? double *num2;

True/False: A pointer with the value 0 (zero) is called a NULL pointer.

The statement cin >> *num3;

A pointer variable is designed to store

Use the delete operator only on pointers that were

A pointer variable may be initialized with

The statement int *ptr = new int;

Look at the following code. int numbers[] = {0, 1, 2, 3, 4 }; int *ptr = numbers; ptr++; After this code executes, which of the following statements is true?

Not all arithmetic operations may be performed on pointers. For example, you cannot ________ or __________ a pointer.

The contents of pointer variables may be changed with mathematical statements that perform:

When you work with a dereferenced pointer, you are actually working with:

Look at the following statement. int *ptr; In this statement, what does the word int mean?

Assuming ptr is a pointer variable, what will the following statement output? cout << *ptr;

Assuming myValues is an array of int values, and index is an int variable, both of the following statements do the same thing. cout << myValues[index] << endl; cout << *(myValues + index) << endl; (T,F)

Which statement displays the address of the variable num1?

When this is placed in front of a variable name, it returns the address of that variable.

The statement int *ptr; has the same meaning as

The _________ , also known as the address operator, returns the memory address of a variable.

The ______ and _______ operators can be used to increment or decrement a pointer variable.

True/False: It is legal to subtract a pointer variable from another pointer variable.

True/False: A pointer can be used as a function argument, giving the function access to the original argument.

True/False: C++ does not perform array bounds checking, making it possible for you to assign a pointer the address of an element out of the boundaries of an array.

When using the new operator with an older compiler, it is good practice to:

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

If a variable uses more than one byte of memory, for pointer purposes its address is:

True/False: An array name is a pointer constant because the address stored in it cannot be changed during runtime.

When the less than ( < ) operator is used between two pointer variables, the expression is testing whether

What will the following code output? int number = 22; int *var = &number; cout << var << endl;

When you pass a pointer as an argument to a function, you must

Every byte in the computer's memory is assigned a unique

What will the following code output? int number = 22; int *var = &number; cout << *var << endl;