Final study

Question 1

define a macro named MULT that multiplies a value by itself 3 times

Answer 1

define MULT(x) ((x)(x)(x))

Question 2

.so

Answer 2

dynamic, runtime

Question 3

volatile

Answer 3

can be modified outside the program

Question 4

-O1 (Optimization flag)

Answer 4

compare multiple lines

Question 5

Create a target in a Makefile called “wave” that checks if file1.c or file2.c changes

Answer 5

wave: file1.c file2.c

Question 6

compile file1.o file2.o using the shared my_math library into “shared”

Answer 6

gcc file1.o file2.o -shared -o libmy_math.so

Question 7

assign a new SDL_window pointer to window and name it “name” of size 4x7 in a 64 bit system

Answer 7

SDL_Window *window = SDL_CreateWindow( “name”, int w, int h, Uint64 flags);

Question 8

clean: target in makefile

Answer 8

removes any build artifacts

Question 9

”s” in -crvs

Answer 9

creates an index

Question 10

“c” in -crvs

Answer 10

creates the archive

Question 11

create a library using file1.o file2.o and libmy_math.a

Answer 11

ar -crvs libmy_math.a file1.o file2.o

Question 13

-O3 (Optimization flag)

Answer 13

function inlining, loop unrolling

Question 14

bt in gbt

Answer 14

back trace

Question 15

extern

Answer 15

can be used through many modules

Question 16

destroy an open window pointer named window

Answer 16

SDL_DestroyWindow(window);

Question 17

-O2 (Optimization flag)

Answer 17

doesnt generate longer code

Question 18

.a

Answer 18

static, executable

Question 19

default target in a makefile

Answer 19

all:

Question 20

assign a struct a function pointer called func that takes an int and string pointer and returns a double

Answer 20

double(*func)(int, char *);

Question 21

read 1 number from a binary file named rng into an int n

Answer 21

fread(&n, sizeof(int), 1, rng)

Question 22

3rd to be assigned in the stack

Answer 22

local variables

Question 23

-Ofast (Optimization flag)

Answer 23

optimize for speed

Question 24

how to link a library

Answer 24

-l<name></name>

Question 25

const int *ptr;

Answer 25

the int cannot be modified

Question 26

How do you search a specific librabry first

Answer 26

-L

Question 27

4th to be assigned in the stack

Answer 27

arguments

Question 28

const modifier

Answer 28

data should not be modified

Question 29

1st to be assigned in the stack

Answer 29

return address

Question 30

System calls

Answer 30

create, delete, sleep, wait, read, write

Question 31

#undef

Answer 31

removes a definition

Question 32

open a file pointer named rng that provides a random binary number when read

Answer 32

FILE *rng = fopen(“/dev/urandom”, “rb”);

Question 33

-S

Answer 33

allows for reading in assembly

Question 34

What is needed first to use graphics in C

Answer 34

bool SDL_Init(Uint32 flags);

Question 35

#ifndef VAR

Answer 35

#if !defined(VAR)

Question 36

int * const ptr;

Answer 36

the pointer cannot be modified

Question 37

random()

Answer 37

provides a not so random random number

Question 38

"r" in -crvs

Answer 38

inserts new files

Question 39

srandom(time(0))

Answer 39

provides a random number

Question 40

purpose of carnaries

Answer 40

protects the program from being corrupted

Question 41

#ifdef VAR

Answer 41

#if defined(VAR)

Question 42

bool SDL_PollEvent(SDL_Event *event);

Answer 42

grabs any event that happens and assigns it to the given variable

Question 43

"v" in -crvs

Answer 43

shows progress

Question 44

2nd to be assigned in the stack

Answer 44

frame pointer

Question 45

.type

Answer 45

checks the event that occured

Question 46

-l

Answer 46

flag for library