Re: [boost] BOOST_ENUM proposal

From: Paul Mensonides (pmenso57_at_[hidden])
Date: 2005-12-10 07:55:55

> -----Original Message-----
> From: boost-bounces_at_[hidden] 
> [mailto:boost-bounces_at_[hidden]] On Behalf Of Yuval Ronen

> > to:
> > 
> >     class Boolean_base
> >     {
> >     public:
> >         enum type
> >         {
> >             False,
> >             True,
> >             size = 2,
> >             Invalid = -1
> >         };
> > 
> >     protected:
> >         typedef boost::array<const char*, (size)+1> array_type;
> >         static const array_type& storage()
> >         {
> >             static const array_type names =
> >             {
> >                 "False",
> >                 "True",
> >                 "2"
> >             };
> >             return names;
> >         }
> >     };
> >     typedef safe_enum<Boolean_base> Boolean;
> 
> A few small remarks:
> 
> I doubt if the storage array needs to be 'size+1' large. The 
> last element of the size itself doesn't need to be stringized.

I haven't really been following this conversion, but why do you need an array at
all?  You have a sequence containing enumerator names.  You can generate a
switch statement just as easily as you can the enum itself:

switch (v) {
    case False:
        return "False";
    case True:
        return "True";
// etc.

Regards,
Paul Mensonides