Synopsis

(Required) There shall be no unused parameters (named or unnamed) in nonvirtual functions.

Enabled by default

Yes

Severity/Certainty

Low/Medium

Full description

A function parameter is declared but not used. This check is identical to RED-unused-param, MISRAC2012-Rule-2.7.

Coding standards

Code examples

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

int example(int x) {
  /* `x' is not used */
  return 20;
}

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

int example(int x) {
  return x + 20;
}