The ``++default++`` clause should take appropriate action. Having an empty ``++default++`` is a waste of keystrokes.


== Noncompliant Code Example

[source,csharp]
----
enum Fruit
{
  Apple,
  Orange,
  Banana
}

void PrintName(Fruit fruit)
{
  switch(fruit)
  {
    case Fruit.Apple:
      Console.WriteLine("apple");
      break;
    default:  //Noncompliant
      break;
  }
}
----


== Compliant Solution

[source,csharp]
----
enum Fruit
{
  Apple,
  Orange,
  Banana
}

void PrintName(Fruit fruit)
{
  switch(fruit)
  {
    case Fruit.Apple:
      Console.WriteLine("apple");
      break;
    default:
      throw new NotSupportedException();
  }
}
----
or

[source,csharp]
----
void PrintName(Fruit fruit)
{
  switch(fruit)
  {
    case Fruit.Apple:
      Console.WriteLine("apple");
      break;
  }
}
----


== Exceptions

``++default++`` clauses containing only a comment are ignored with the assumption that they are empty on purpose and the comment documents why.


ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::message.adoc[]

include::highlighting.adoc[]

'''
== Comments And Links
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include::comments-and-links.adoc[]
endif::env-github,rspecator-view[]