[previous] 0738 [next] [C] Controlling expression in a 'switch' statement must have integral type.
Constraint violations REFERENCE - ISO:C90-6.6.4.2 The switch Statement - Constraints

This is a constraint error

The controlling expression of a 'switch' statement must be of integral type. For example: 


/*PRQA S 2017 ++*/

/*PRQA S 2017,3120,3227,3408,3605 ++*/

extern int foo(float s)
{
    int r;

    switch (s)                  /* Message 0738 */
    {
    case 1:
        r = 10;
        break;

    case 2:
        r = 20;
        break;

    default:
        r = 100;
        break;
    }

    return r;
}

MISRA-C:2004 Rules applicable to message 0738:

Rule  1.1  (Required) All code shall conform to ISO/IEC 9899:1990 C programming language, ISO 9899, amended and corrected by ISO/IEC 9899/COR1:1995, ISO/IEC 9899/AMD1:1995, and ISO/IEC 9899/COR2: 1996192

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