Re: [boost] variant - errors in mpl/less.hpp when bind.hpp isincludedbeforevariant.hpp with vc7.1 - Boost

6 Feb 2004

      Rene Rivera wrote:
...
Brock Peabody wrote:
...
...
-----Original Message-----
From: boost-bounces@lists.boost.org 
[mailto:boost-bounces@lists.boost.org]
On Behalf Of Peter Dimov
...
Nice bug. I think that it's triggered by the "value<" sequence in the 
code
below:
enum
   {
       msvc71_wknd_ = ( BOOST_MPL_AUX_VALUE_WKND(T1)::value
                       < BOOST_MPL_AUX_VALUE_WKND(T2)::value )
   };
...
You can work around the problem by replacing the above with
enum
   {
       msvc71_wknd_ = ( BOOST_MPL_AUX_VALUE_WKND(T2)::value
                       > BOOST_MPL_AUX_VALUE_WKND(T1)::value )
   };
I've commited the fix to the CVS HEAD as it seems fairly harmless (he 
said
before breaking all other compilers). ;-)
Shouldn't that be ">=" ???
No, the above is correct. Consider:

   a < b == b > a

Read either size backwards, noting the direction of the slant in the 
comparison operator.

Regards,
Reece

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Re: [boost] variant - errors in mpl/less.hpp when bind.hpp isincludedbeforevariant.hpp with vc7.1

Reece Dunn

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