Cpp - bit manipulation

Question 1

What is the smallest addressable unit of memory

Answer 1

A byte

Question 2

How many bits in a byte

Answer 2

8

Question 3

How to define a set of bit flags?

Answer 3

include

std::bitset<8> mybitset {};

Question 4

What does test() do

Answer 4

Query whether a bit is a 0 or 1

Question 5

what does set() do

Answer 5

Turn a bit on

Question 6

reset()

Answer 6

turn a bit off

Question 7

flip()

Answer 7

flip a bit value to its opposite

Question 8

What are the following bitwise operator

<<
>>
~
&
|
^

Answer 8

left shift 
right shift
bitwise NOT
bitwise AND
bitwise OR
bitwise XOR

Question 9

What does std::cout do to &laquo_space;and&raquo_space;

Answer 9

it overloads it so it performances a console output rather than a shift

Question 10

Whats a bit mask

Answer 10

A predefined set of bits that is used to select which bits will be modified by subsequent operations

Question 11

How to define bit masks

Answer 11

include

constexpr std::uint8_t mask{ 0b0000’0001 }; represents bit 0

Question 12

test to see if bit is on or off

Answer 12

take the flags and bitwise AND it with the mask

Question 13

setting a bit

Answer 13

take the flag and bitwise OR assignment it to the mask

Question 14

Reset a bit

Answer 14

Take the flags then bitwise AND assignment it to the NOT of the mask