Synopsis

(Advisory) Types with limited visibility should be used at least once

Enabled by default

No

Severity/Certainty

Low/Medium

Full description

Found unused type

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:

namespace {
  struct IntVal  // Not used
  {
    int v;
  };
}

void example()
{
}

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

namespace {
  struct IntVal
  {
    int v;
  };
}

int example()
{
  IntVal n{1};
  return n.v;
}