How to implement bitwise ROTATION in C

[CM600]

bit rotation in c

Hello,
I am using IAR ARM C compiler, is there a library function for rol or ror ?

 

[asahin11]

c bit rotation

Hi CM600,

You can try << for rol and >> for ror.

regrads,

 

[rag_perfect]

c bit rotate

hi!
u caneasily do it by using of bitwise operators.

rag_perfect

 

[CM600]

bitwise rotate c

The >> and << operators are for shifting not for rotation

 

[jonw0224]

bitwise rotation in c

to rotate a byte by n bits to the right:

a = (a >> n) || (a << (8-n))

you probably want to make your code more general (don't hardcode '8').