[Boost-users] boost::variant and SGI's compose1 cause constness error

From: junkmail.hoefling_at_[hidden]
Date: 2005-07-06 07:45:28

Hi there,

I have a problem using boost::variant. I want apply_visitor to go through  
a list of pairs whose first type is a variant.
Using compose1 and select1st from the SGI extensions to the STL yields a  
constness error. The problem is illustrated by
the attached code which shoud be compiled with the g++ (the SGI extensions  
are here available via __gnu_cxx).

What's wrong? Is it my fault using the library or is it a missing const  
version in apply_visitor_delayed_t()?

Thanks a lot for any hints!

Best,
Erwin