>  Right now there are 3 libraries near review, each using their
>  own set of similar macros:
>   - circular_buffer
>   - indexed_set
>   - serialization
> 
>  The reasons to use macros instead of RAII is convenience
>  and performance.
> 
>  Some compilers (BCB) do not allow try/catch with
>  exceptions disabled so some solution is needed.
> 
>  It would be better to have and use standardized macros
>  in Boost.
> 
> 
>  Example: macros used in indexed_set:
> 
>  #if !defined(BOOST_NO_EXCEPTIONS)
>  #  define BOOST_INDEXED_SET_TRY try
>  #  define BOOST_INDEXED_SET_CATCH(x) catch(x)
>  #  define BOOST_INDEXED_SET_RETHROW throw
>  #else
>  #  define BOOST_INDEXED_SET_TRY
>  #  define BOOST_INDEXED_SET_CATCH(x) if(0)
>  #  define BOOST_INDEXED_SET_RETHROW
>  #endif
> 
>  Compiles w/o warnings on VC6+, BCB gives unreachable
>  code warning (but I'll try to find workaround).

I doubt you'll find a satisfactory one, there are pragmas that can disable
those warnings, but that introduces even more code than the traditional:

#ifndef BOOST_NO_EXCEPTIONS
catch(x)
{
}
#endif

I suggest we review these when the first of these lib's comes up for review,
anyone else want to comment?

John.

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