[previous] 0735 [next] Using relational or logical operators in a 'switch' expression is usually a programming error.
Switch statements

This switch statement has a controlling expression which is effectively Boolean - i.e. it will evaluate to either 0 or 1. This is probably a mistake.

For example: 


/*PRQA S 2017 ++*/

/*PRQA S 2002,2017,3227,3408,3447 ++*/

extern int x;

void foo(int option, int pick)
{
    switch (option == pick)          /* Message 0735 */
    {
    case 0:
        ++x;
        break;

    case 1:
        x = 0;
        break;
    }
}

MISRA C:2012 Rules applicable to message 0735:

Rule-16.7  (Required) A switch-expression shall not have essentially Boolean type

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