[Boost-users] simple boost::bind question

From: Manfred Doudar (manfred.doudar_at_[hidden])
Date: 2006-08-10 00:33:51

Hello all:

Hoping someone might help with a simple problem; how I might call a 
member on a boost::bind placeholder, see below ...

#include <list>

class Xtype
{
public:

    Xtype(int v)
    : value_(v)
    {
    }

    int the_value() const
    {
       return this->value_;
    }

private:

    int value_;
};

template <typename Predicate>
class Excise
{
public:

   void operator()(std::list<Xtype>& li) const
   {
      li.remove_if(boost::bind(Predicate(), ::_1, 10));
   }
};

... what I really want is something more like [, note the call of 
Xtype::this_value() ]:

void operator()(std::list<Xtype>& li) const
{
    li.remove_if(boost::bind(Predicate(), ::_1.the_value(), 10));
}

But how do I achieve that (, if at all possible); as seemingly 
::_1.the_value() is illegal/invalid code ?

Thanks in advance,
-- 
Manfred