Re: [boost] Re: erroneous use of BOOST_STATIC_CONSTANT ?

From: Toon Knapen (toon.knapen_at_[hidden])
Date: 2004-07-14 16:51:13

David Abrahams wrote:

> Ultimately I think the right answer is to use 
> 
>       mpl::integral_c<some_type, some_value>
> 
> or
> 
>       mpl::bool_<some_value>
> 
> etc.
> 
> everywhere as Paul Mensonides suggested.  One reason is that it
> centralizes the out-of-line static member definitions.
> 

I tried this (in the algorithm/string library where I also tested the 
enum trick for Pavol Droba) and just replaced in 
algorithm/string/std/string_traits.hpp following lines

   enum { value = false } ;
   typedef mpl::bool_< value > type ;

with

   typedef mpl::bool_< false > value ;
   typedef mpl::bool_< value > type ;

and this evidently results in a compilation error. I am not very fluent 
in mpl but AFAICT this seems like a nice solution but not exactly a 
drop-in replacement for the current situation.