Re: [Boost-users] [ptr_container] Using bind with ptr_map

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2007-11-13 04:30:36

Bill Buklis skrev:
> Is there a way to use bind with ptr_map? The following fails to compile (but
> does work with std::map):
> 
> typedef boost::ptr_map<int,int> TESTMAP;
> 
> boost::bind( &TESTMAP::value_type::first, _1 );
> 
> 
> This errors with pointer to reference member is illegal (C2634 in VC++ 8).

The value_type is a proxy object which is not quite like std::pair in 
every way.

I'm very busy right now, but I don't think there is any way to make the 
above work. In 1.35+, there is a chance that the underlying container is 
better exposed, so you can use that directly in some circumstances.

-Thorsten