Re: [boost] [C++0x] Emulation of scoped enums

Subject: Re: [boost] [C++0x] Emulation of scoped enums
From: Joel Falcou (joel.falcou_at_[hidden])
Date: 2009-03-05 12:38:43

Phil Endecott a écrit :
> - How about avoiding the _START/_END stuff with e.g.
>   BOOST_SCOPED_ENUM_DECL(algae, green,red,cyan);
>   (I had been under the impression that varargs macros were a gcc-ism, 
> but I've recently discovered that they're in c99; do non-gcc C++ 
> compilers generally allow them?  I don't think we can get away with 
> allowing only up-to-N elements in this case.)
>
Evenif variadic macro is not supported, Boost::Preprocessor sequence can :

BOOST_SCOPED_ENUM_DECL(algae, (green)(red)(cyan) );

or Boost::Preprocessor array

BOOST_SCOPED_ENUM_DECL(algae, (3,(green,red,cyan) );

-- 
___________________________________________
Joel Falcou - Assistant Professor
PARALL Team - LRI - Universite Paris Sud XI
Tel : [phone]