Hallo NG,

I've got an enum in one of my classes and to compiler trying to compile it:

class Foo
{
 public:
 int dofoo();

 enum TestEnum{
 Elem1,
 Elem2
 }
};

int FOO::dofoo()
{
  // Here comes my problem:
  // Do I have to write
  some_var = FOO::TestEnum::Elem1;
  // or
  some_var = FOO::Elem1;
  // to acces my enum?
}

The first example makes IMHO more sense than the other, but does only
work on MSVC. I had to use the second example to compile it using gcc
(version 3.2). Which one is the standard way?

Cu Stephan

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"Stephan Wienczny" <wienczny@web.de> wrote...
> Hallo NG,
>
> I've got an enum in one of my classes and to compiler trying to compile
it:
>
> class Foo
> {
> public:
> int dofoo();
>
> enum TestEnum{
> Elem1,
> Elem2
> }
   ^
A semicolon is missing here, I believe.

> };
>
> int FOO::dofoo()
> {
>   // Here comes my problem:
>   // Do I have to write
>   some_var = FOO::TestEnum::Elem1;
>   // or
>   some_var = FOO::Elem1;
>   // to acces my enum?
> }
>
> The first example makes IMHO more sense than the other, but does only
> work on MSVC. I had to use the second example to compile it using gcc
> (version 3.2). Which one is the standard way?

You can drop both prefixes.  "Elem1" or "Elem2" are accessible
within the class scope (which also includes the scope of member
functions):

    int FOO::dofoo()
    {
        TestEnum some_var = Elem1;
        return 42;
    }

(Standard, 9.2/1: "The enumerators of an enumeration (7.2) defined
 in the class are members of the class.", and 3.3.6/1 "The potential
 scope of a name declared in a class consists not only of the
 declarative region following the name's declarator, but also of all
 function bodies, default arguments, and constructor ctor-initializers
 in that class (including such things in nested classes)." )

Victor
--
Please remove capital A's from my address when replying by mail


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