QA·C Help - 4512

	4512	An expression of 'essentially character' 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 character type has been used as an operand of a bitwise operator.

For example:


/*PRQA S 1-9999 ++*/
/*PRQA S 4512-4514 --*/

void f4512 (char a)
{
  a & 1u;                   /* 4512 */
  
  a | 1u;                   /* 4512 */
  
  ~a;                       /* 4512 */

  a >> 1u;                  /* 4513 */

  1u << a;                  /* 4514 */
}

MISRA C:2012 Rules applicable to message 4512:

Rule-10.1 (Required)

Operands shall not be of an inappropriate essential type.

See also:

4513 An expression of 'essentially character' type (%1s) is being used as the left-hand operand of this shift operator (%2s).
4514 An expression of 'essentially character' 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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