_rotr()

rotate an unsigned integer to the right

Synopsis:

#include <stdlib.h>
unsigned int _rotr( unsigned int value,
                    unsigned int shift );

Description:

The _rotr() function rotates the unsigned integer, value, to the right by the number of bits specified in shift. If you port an application using _rotr() between a 16-bit and a 32-bit environment, you'll get different results because of the difference in the size of integers.

Returns:

The rotated value.

Examples:

#include <stdio.h>
#include <stdlib.h>

unsigned int mask = 0x1230;

void main()
  {
    mask = _rotr( mask, 4 );
    printf( "%04X\n", mask );
  }

produces the output:

0123

Classification:

WATCOM

See also:

_lrotl(), _lrotr(), _rotl()