#include<boost/shared_ptr.hpp>
#include<boost/bind.hpp>
#include<boost/ref.hpp>
#include<boost/bind/arg.hpp>
#include<boost/function.hpp>
 
struct A
{
  A(int v):value(v){}
  int someFun(){return value;}
  int someOtherFun(int v=0){return v+value;}
  int value;
};
 
int main() {
  boost::shared_ptr<A> a(new A(42));
  boost::bind(&A::someOtherFun,a, _1)(1); //Error
  boost::bind(&A::someFun,a)();
  boost::function<int(int)>b(boost::bind(&A::someOtherFun,a, _1));
  boost::function<int()>c(boost::bind(&A::someOtherFun,a, 0));
  return 0;
} 
 
 

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