[previous] 4505 [next] An expression of 'essentially Boolean' type (%1s) is being used as the %2s operand of this relational operator (%3s).
Arithmetic type - Operands

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

For example: 


/*PRQA S 1-9999 ++*/
/*PRQA S 4505 --*/

void f4505 (int a, _Bool b)
{
  (a != 0) < b;             /* 4505 x2 */
  
  b >= b;                   /* 4505 x2 */
}

MISRA C:2012 Rules applicable to message 4505:

Rule-10.1  (Required) Operands shall not be of an inappropriate essential type.

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