[fusion] Re: Build error 1.46

On 2/22/2011 3:11 PM, gast128 wrote:
> Hello all,
> 
> I got a build error when building Boost 1.46 on Visual Studio 2003 (MSVC 7.1) in
> Boost.Fusion:
> 
> compile-c-c++ bin.v2\libs\math\build\msvc-7.1\debug\pch-off\threading-multi\asso
> c_legendre.obj
> assoc_legendre.cpp
> boost\fusion\sequence\comparison\less_equal.hpp(49) : error C2039: 'is_native_fu
> sion_sequence' : is not a member of 'boost::fusion::detail'
> boost\fusion\sequence\comparison\less_equal.hpp(49) : error C2065: 'is_native_fu
> sion_sequence' : undeclared identifier
> boost\fusion\sequence\comparison\less_equal.hpp(49) : error C2974: 'boost::disab
> le_if' : invalid template argument for 'Cond', type expected
>         boost\utility\enable_if.hpp(59) : see declaration of 'boost::disable_if'
> 
> Anyone?

Looks like a bug, yes. is_native_fusion_sequence was moved out of the
detail namespace and into the traits namespace, but this work-around
code for vc7.1 and vc8 was not updated.

If you replace detail::is_native_fusion_sequence with
traits::is_native_fusion_sequence, the problem should go away.

Would you be kind enough to file a bug?

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com