QA·C Help - 4502

	4502	An expression of 'essentially Boolean' type (%1s) is being used as the %2s operand of this bitwise operator (%3s).

Arithmetic type - Operands

This message is issued whenever an expression of essentially Boolean type has been used as an operand of a bitwise operator.

For example:


/*PRQA S 1-9999 ++*/
/*PRQA S 4502-4504 --*/

void f4502 (int a, _Bool b)
{
  (a != 0) & 1u;            /* 4502 */
  
  b | 1u;                   /* 4502 */
  
  ~b;                       /* 4502 */

  b >> 1u;                  /* 4503 */

  1u << b;                  /* 4504 */
}

MISRA C:2012 Rules applicable to message 4502:

Rule-10.1 (Required)

Operands shall not be of an inappropriate essential type.

See also:

4503 An expression of 'essentially Boolean' type (%1s) is being used as the left-hand operand of this shift operator (%2s).
4504 An expression of 'essentially Boolean' type (%1s) is being used as the right-hand operand of this shift operator (%2s).

QA·C Source Code Analyser 8.1
MISRA C:2012 Compliance Module 1.0
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