Re: [boost] boost/mpl/integral_c.hpp doesn't compile on irix

From: Steve M. Robbins (steven.robbins_at_[hidden])
Date: 2002-09-17 09:29:56

On Mon, Sep 16, 2002 at 03:17:27PM -0400, David Abrahams wrote:
> From: "Steve M. Robbins" <steven.robbins_at_[hidden]>
> 
> 
> > Hi,
> >
> > There's a bit of code in there that reads
> >
> >     // have to #ifdef here: some compilers don't like the 'N + 1' form
> (MSVC),
> >     // while some other don't like 'value + 1' (Borland)
> > #if !defined(__BORLANDC__)
> >     typedef integral_c<T, value + 1> next;
> >     typedef integral_c<T, value - 1> prior;
> > #else
> >     typedef integral_c<T, N + 1> next;
> >     typedef integral_c<T, N - 1> prior;
> > #endif
> >
> >
> > The MIPSpro compiler (version 7.30, using -LANG:std) doesn't like either
> form.
> > Is there a third way?
> 
> First try adding parens around (value + 1).
> 
> Then try BOOST_STATIC_CONSTANT(type-of-value, next_val = value + 1), and
> pass next_val to integral_c.
> 
> Let us know what works...

Well, someone (YOU, I think) has beaten me to it: the code currently
in CVS works.  For the record, the MIPSpro compiler takes the static
constant version guarded by 

  #if defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241

Thanks,
-Steve