I use Dev-c++, and found a problem:

# indcude "boost/lambda/if

................

typedef std::map<int, int> IIPrimemap;

IIPrimemap primemapvec;

........................

int nnumber;

int switchvalue;

.........................
  if_then_else(var(nnumber)==1,var(switchvalue)=1,
    if_then_else(count_if(primemapvec.begin(),primemapvec.end(),
       bind(&IIPrimemap::value_type::second,_1)>2)>0,
        var(switchvalue)=2,var(switchvalue)=3));

.........................
But the complier told me that:

 

 no matching function for call to `if_then_else(bool, const
   boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::other_action<boost::lambda::assignment_action>,
I do not know how to handle it.

Can any one with knidness help me?