4440			An expression of 'essentially unsigned' type (%1s) is being converted to Boolean type, '%2s' on assignment.
	Arithmetic type - Assignment

/*PRQA S 1-9999 ++*/
/*PRQA S 4440 --*/

void foo (_Bool b);

_Bool f4440 (unsigned short a)
{
  _Bool boa = a;            /* 4440 */

  foo (a + 1u);             /* 4440 */

  boa = a - 1u;             /* 4440 */

  return a;                 /* 4440 */
}