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IAR Embedded Workbench for RH850 3.20.x

MISRAC++2008-6-4-6

In this section:
Synopsis

(Required) The final clause of a switch statement shall be the default-clause.

Enabled by default

Yes

Severity/Certainty

Low/Medium

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Full description

Switch statements without a default clause, or with a default clause that is not the final clause, were found. This check is identical to MISRAC2004-15.3.

Coding standards
CWE 478

Missing Default Case in Switch Statement

MISRA C:2004 15.3

(Required) The final clause of a switch statement shall be the default clause.

Code examples

The following code example fails the check and will give a warning:

int example(int x) {
  switch(x){
    default:
      return 2;
      break;
    case 0:
      return 0;
      break;
  }
}

The following code example passes the check and will not give a warning about this issue:

int example(int x) {
  switch(x){
    case 3:
      return 0;
      break;
    case 5:
      return 1;
      break;
    default:
      return 2;
      break;
  }
}