4522			An expression of 'essentially enum' type (%1s) is being used as the %2s operand of this bitwise operator (%3s).
	Arithmetic type - Operands

/*PRQA S 1-9999 ++*/
/*PRQA S 4522-4524 --*/

enum E {ONE, TWO};

void f4522 (enum E a)
{
  a & 1u;                   /* 4522 */
  
  ONE | 1u;                 /* 4522 */
  
  ~a;                       /* 4522 */

  a >> 1u;                  /* 4523 */

  1u << TWO;                /* 4524 */
}

See also:

• 4523 An expression of 'essentially enum' type (%1s) is being used as the left-hand operand of this shift operator (%2s).
• 4524 An expression of 'essentially enum' type (%1s) is being used as the right-hand operand of this shift operator (%2s).