Bitwise operators C++

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i recently learnt about bitwise operators and it says if you did:
int num = 16;
int newnum = num >> 2;

the value of 16 in binary is 1000, so the result of doing int newnum = num >> 2; would be 00100. This is what i dont understand. Shouldnt the value become 0010, since doing int newnum = num >> 1; would be 0100?

What I have tried:

ive tried searching it up but i dont find anything

Posted 15-Apr-21 20:40pm

iwanttoaskquestions

Updated 15-Apr-21 21:55pm

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CPallini 16-Apr-21 3:19am

"the value of 16 in binary is 1000"
Nope: as correctly pointed out by markkuk,
1000 binary <=> 8 decimal

2 solutions

Solution 2

This might be helpful :

int num  = 16 
         = 0001 0000

num << 1 = 0010 0000
num << 2 = 0100 0000
num << 3 = 1000 0000

num >> 1 = 0000 1000
num >> 2 = 0000 0100
num >> 3 = 0000 0010

Posted 15-Apr-21 21:55pm

Rick York

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markkuk · Accepted Answer · 2021-04-15T21:16:00

Solution 1

16 decimal is 10000 binary. 16 >> 2 == 4, which is 100 binary.

Posted 15-Apr-21 21:16pm

markkuk

Comments

CPallini 16-Apr-21 3:17am

5