[previous] 1803 [next] The %1s operand (essential type: '%2s') will be implicitly converted to a floating type, '%3s', in this equality operation.
Arithmetic type - Balancing

This message is issued whenever an equality operator is used with an expression of essentially floating type and an expression of integral type.

For example: 


/*PRQA S 1-9999 ++*/
/*PRQA S 1803 --*/

void f1803 (float a, int b)
{
  if (b == a)                /* 1803 */
  {
  }

  if ((a - 1.0f) != b)       /* 1803 */
  {
  }
}

MISRA-C:2004 Rules applicable to message 1803:

Rule  10.1  (Required) The value of an expression of integer type shall not be implicitly converted to a different underlying type if: a) it is not a conversion to a wider integer type of the same signedness, or b) the expression is complex, or c) the expression is not constant and is a function argument, or d) the expression is not constant and is a return expression

QA·C Source Code Analyser 8.1
MISRA-C:2004 Compliance Module 3.2
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