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rotate an unsigned long integer to the right
#include <stdlib.h>
unsigned long _lrotr( unsigned long value,
                      unsigned int shift );
The _lrotr() function rotates the unsigned long integer, determined by value, to the right by the number of bits specified in shift.
The rotated value.
#include <stdio.h>
#include <stdlib.h>
unsigned long mask = 0x12345678;
void main()
  {
    mask = _lrotr( mask, 4 );
    printf( "%08lX\n", mask );
  }
produces the output:
81234567
WATCOM
| Safety: | |
|---|---|
| Interrupt handler | Yes | 
| Signal handler | Yes | 
| Thread | Yes | 
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