[Boost-users] Binding to a function with optional parameters

2 Dec 2008


      Is there a way to bind to a function with optional arguments?  See my 
simple demo program below to see what I've tried:

#include 
#include <iostream>
using namespace boost;
using namespace std;

int f(int x, int y = 0) { return x + y; }

// Commented lines below don't compile.
int main() {
   cout << bind(f, 1, 2)() << endl;
   // cout << bind(f, 1)() << endl;
   int (*p)(int, int) = f;
   cout << bind(p, 1, 2)() << endl;
   // int (*q)(int) = f;
   // cout << bind(q, 1)() << endl;
   return 0;
}

-- 
Yang Zhang
http://www.mit.edu/~y_z/