Synopsis

(Advisory) There should be no unused parameters in functions.

Enabled by default

No

Severity/Certainty

Low/Medium

Full description

A function parameter is declared but not used. This check is identical to RED-unused-param, MISRAC++2008-0-1-11, MISRAC++2023-0.2.2_a.

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;
}