All Bit Level Operations in C (Bitwise Operations)

 If you was not understand How to use the bitwise operations ?!!

NOW , I can tell you that your problem will solve after read this blog.  

• Our  Agenda  :

1- Bitwise AND Operator denoted by "&"  .
2- Bitwise OR Operator denoted by "|"  .
3- Bitwise XOR Operator denoted by "^" . 
4- Bitwise Complement or Negation Operator denoted by "~" .
5- Bitwise Right Shift & Left Shift denoted by ">>" and "<<" .

• Bitwise AND Operator '&' : 

AND Operation it's always used to clear bit , why ?! and what is the meaning of bit ?!! .

Bit is the smallest storage unit that allows you to hold on only one of two values : 1 or 0 . 

Why AND Operation used to Clear bit ? 
If you look at this two videos , you will conclude that  :

1- if you assign 0 on bit in register already have 1 , this bit will convert from 1 to 0 . (Clear bit)
2- if you assign  1 on bit in register already have 0 , this bit will stay 0 . (No effect on bit )

3- if you assign  1 on bit in register already have 1 , this bit will stay 1 .   (No effect on bit )

4- if you assign  0 on bit in register already have 0 , this bit will stay 0.  (No effect on bit )

This video will help you to imagine the operate of assign bits on register

 (By AND Operator)

 

And look at the second video to be sure that you understand good .  

• Bitwise OR Operator '|' : 

OR Operation it's always used to set bit , why ?! .

Why OR Operation used to Set bit ? 
If you look at this two videos , you will conclude that  :

1- if you assign 0 on bit in register already have 1 , this bit will stay 1 .   (No effect on bit )  
2- if you assign  1 on bit in register already have 0 ,this bit will convert from 0 to 1. (Set bit)

3- if you assign  1 on bit in register already have 1 , this bit will stay 1 .   (No effect on bit )

4- if you assign  0 on bit in register already have 0 , this bit will stay 0.  (No effect on bit )

                          This video will help you to imagine the operate of assign bits on register

   (By AND Operator)

                                And look at the second video to be sure that you understand good 

• Bitwise XOR Operator '^' : 

XOR Operator, it's like OR  but with one difference  , what is it ?! .

It's when you assign  1 on bit in register already have 1 , this bit will convert from 1 to 0. (Clear bit)

• Bitwise Complement or Negation Operator '~' : 

Negation Operator , it's just toggle the bits . 

I mean , 

1- if bit in register have 1 , this bit will convert to 0 .  ( Toggle bit )

2- if bit in register have 0 ,this bit will convert 1. ( Toggle bit )

 

• Bitwise Right shift '>>' and Left shift '<<' : 

Right Shift Operator , it's just Shift the bits from right and set right bits '0' . 

Left Shift Operator , it's just Shift the bits from left and set left bits '0' .