Hello,
I'm trying to use boost lambda to create a function
and I can't seem to get it to work.
Here's the setup:
class T
{
public:
char m_c;
T( char c ) : m_c( c )
{
}
virtual T * clone() const=0;
virtual ~T(){}
};
typedef boost::shared_ptr<T> TPtr;
typedef std::vector<TPtr> TVec;
using namespace boost::lambda;
This works:
const boost::function< void( T const * const) > f =
bind( &TVec::push_back, &tVec,
bind( constructor<TPtr>(),
bind( &T::clone, _1)));
But this doesn't:
const boost::function< void( const T & ) > g =
bind( &TVec::push_back, &tVec,
bind( constructor<TPtr>(),
bind( &T::clone, boost::cref(_1) )));
The compilation error I'm getting is that it cannot create a new
object of type T and that is expected since T is abstract. Why would
lambda be making copies instead of passing on the reference?
I've attached a simplified version of the problem.
Thanks,
David
--
David Sankel
Sankel Software
www.sankelsoftware.com
585 617 4748 (Office)
585 309 2016 (Mobile)
