Quiz 5 Review

What will the result of DIVIDE(9 + 6, 3) be if DIVIDE is defined as follows?

#define DIVIDE(A, B) A / B

• 2

• 5

• 11

• DIVIDE(9 + 6, 3) would cause a compiler error.

What will the following code print

#define FOO -3

#if FOO

printf("Oranges ");

#else

printf("Bananas ");

#endif

• Oranges

• Bananas

• Oranges Bananas

• This code will not compile

What lines of code will prevent contents of header file "stuff" from being included more than once?

• #ifdef STUFF_H​

  #define STUFF_H ​

  #endif

  Contents of stuff.h​

• #ifndef STUFF_H​

  #define STUFF_H ​

  #endif

  Contents of stuff.h​

• #ifdef STUFF_H​

  #define STUFF_H ​

  Contents of stuff.h​

  #endif

• #ifndef STUFF_H​

  #define STUFF_H ​

  Contents of stuff.h​

  #endif

What will the following code print?

char myChar = 'A';

printf("%d", myChar);

• 'A'

• The ASCII value of A

• The address of 'A'

• This code will cause a compiler error.

What will the following code print?

int a = 0x22;

a += 7

printf("%d", a);

• 29

• 0x29

• 41

• It will not compile

What will the following code print?

int gpa =4;

gpa <<= 1;

gpa = gpa ^ (gpa - 4);

printf("%d", gpa);

• 0

• 4

• 8

• 12

(T/F) If we had an integer a, ++a and a++ are functionally identical.

• True

• False

What line should be placed here so that num is updated with user input?

int num;

printf("Enter a number: ");

// FILL IN LINE HERE

printf("You entered: %d\n", num);

• scanf("%d", num");

• scanf("%d", &num);

• scanf("%i", num);

• scanf("%i", &num);

Where in memory are global variables stored?

• The global data section

• The stack

• The heap

• In the same space as the program text

Which LC3 assembly code mimics the following C code:

while (R1 >= 0) {

R1--;

}

• BRn END

  WHILE

  ADD R1 R1 -1

  BR WHILE

  END

• WHILE

  BRzp END

  ADD R1 R1 -1

  BR WHILE

  END

• WHILE

  BRn END

  ADD R1 R1 -1

  BR WHILE

  END