Just a quick question on classes and enums

boneill3 (16)
Just wondering when you use a enumerator in a class

eg enum date

class image
{
public:
private:

date adate:

};


Do you access the enum value by a image::image call ?

or does enum value stay as its own class?

thanks
Brendan
Duthomhas (13282)
It depends. Pay attention to lines 9 and 17 of the following two examples.

In this case, the suit type is not related to the class:
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enum t_suit {spades, hearts, diamonds, clubs};

class t_card
  {
  public:
    t_suit suit;

    // constructor sets 'suit' to 'hearts'
    t_card(): suit( hearts ) { }
  };

int main()
  {
  t_card card;

  // but we'd rather it be 'spades'
  card.suit = spades;
  }


But in this case, the suit type is part of the class type:
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class t_card
  {
  public:
    enum t_suit {spades, hearts, diamonds, clubs};

    t_suit suit;

    // constructor sets 'suit' to 'hearts'
    t_card(): suit( hearts ) { }
  };

int main()
  {
  t_card card;

  // but we'd rather it be 'spades'
  card.suit = t_card::spades;
  }


Hope this helps.
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