Re: [boost] [compressed pair] Borland patch

From: Robert Kawulak (kawulak_at_[hidden])
Date: 2006-02-01 05:37:04

> From: Robert Kawulak

> I think this should rather be:
> 
> #if BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x846))
> #define BOOST_PRIVATE_BASE_CAST(type, arg)
static_cast<type>(arg)
> #else
> #define BOOST_PRIVATE_BASE_CAST(type, arg) (arg)
> #endif
> 
> And later in the appropriate lines:
> 
> first_reference first() 
>   { return BOOST_PRIVATE_BASE_CAST(first_reference, *this); }
> first_const_reference first() const 
>   { return BOOST_PRIVATE_BASE_CAST(first_const_reference,
*this); }

I think I just found a better solution - if the base classes of
compressed_pair_imp are protected instead of private, then DMC
compiles this fine (and four other compilers I've tested too),
and the code isn't cluttered with macros.

Best regards,
Robert