Re: [Boost-users] [Bind] binding a functor simple example - compiler error

Subject: Re: [Boost-users] [Bind] binding a functor simple example - compiler error
From: Rutger ter Borg (rutger_at_[hidden])
Date: 2010-05-27 10:02:43

Viter :O) wrote:

> I'm having problems to compile a simple example and I don't
> Know what could it be the problem.
> 
> my main.cpp code is the following:
> 
> -- main.cpp -----------------------------------------------
> #include <boost/bind.hpp>
> #include <iostream>
> 
> int main() {
>     struct F {
>         int operator() (int a, int b) const { return a + b; }
>     };
>     F f;
> 
>     std::cout << "  f: " << boost::bind(f,1,2)() << std::endl;
> 
>     return 0;
> }
> -----------------------------------------------------------

Please try moving F out of main, and say something about its result type,

struct F {
  typedef int result_type;
  int operator() (int a, int b) const { return a + b; }
};

int main() {
    F f;
    std::cout << "  f: " << boost::bind(f,1,2)() << std::endl;
    return 0;
}

HtH,

Rutger