Synopsis

A switch case uses only a subset of an enumeration.

Enabled by default

No

Severity/Certainty

Low/Medium

Full description

A switch case uses only a subset of an enumeration.

Coding standards

This check does not correspond to any coding standard rules.

Code examples

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

enum ABC { A, B, C}; 

int example(enum ABC v) {
  switch (v) { /* Not compliant, C not used.*/
    case A: return 1;
    case B: return 2;
    default: return -1;
  } 
}

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

enum ABC { A, B }; 

int example(enum ABC v) {
  switch (v) { /* Compliant */
    case A: return 1;
    case B: return 2;
    default: return -1;
  } 
}