Currying in C++

curry.cc

#include <stdio.h>

class Adder {
public:
  Adder(int n): n(n) {}
  int operator()(int other) { return other + n; }

private:
  int n;
};

int main(int argc, char *argv[])
{
  Adder a(4);
  printf("%d\n", a(38));

  return 0;
}