unsigned rightrot2(unsigned x, int n)
{
if (( n = n % wordlength()) > 0)
{
return x >> n | (x & ~(~0 << n)) << (wordlength() -n);
}
}
int rightrot(int x, int n) {
int wordlength(void);
while (n-- > 0) {
x = x >> 1;
x = x | (unsigned) ((x & 1) << (wordlength() - 1));
}
return x;
}
unsigned leftrot(unsigned x)
{
int lbit;
lbit = x >> (wordlength() - 1);
x = x << 1;
x = x | lbit;
return x;
}
unsigned rightrot(unsigned x)
{
int rbit;
rbit = (x & 1) << (wordlength() - 1);
x = x >> 1;
x = x | rbit;
return x;
}
unsigned rightrot(unsigned x,int n)
{
int wordlength(void);
unsigned rbit;/* rightmost bit */
rbit = x << (wordlength() - n);
x = x >> n;
x = x | rbit;
return x;
}
unsigned rightrot(unsigned x, int n)
{
int wordlength(void);
int rbit;
while (n-- > 0){
rbit = (x & 1) << (wordlength() - 1);
x = x >> 1;
x = x | rbit;
}
return x;
}
unsigned int rightrot(unsigned int x, int n)
{
int i;
i = wordlength(x);
return ( x>>n | (x & ~(~0<<n))<<(i+1-n));
}
