QA·C Help - 1844

	1844	The %1s operand is constant, 'essentially signed' (%2s) and non-negative but will be implicitly converted to an unsigned type (%3s) in this conditional operation.

Arithmetic type - Balancing

This message is issued whenever a constant expression of essentially signed type with a non-negative value has been used as the 2nd or 3rd operand of the conditional operator, and undergoes a usual arithmetic conversion to an unsigned integer type (the type of the other operand).

For example:


/*PRQA S 1-9999 ++*/
/*PRQA S 1844 --*/

unsigned f1844 (unsigned b)
{
  return (b == 0) ? 1 : b; /* 1844 */
}

MISRA C:2012 Rules applicable to message 1844:

Both operands of an operator in which the usual arithmetic conversions are performed shall have the same essential type category

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