Re: Using for_each on a std::list<boost::function0<void> >

From: Vladimir Prus (yg-boost-users_at_[hidden])
Date: 2003-04-23 05:21:14

Hi Russell,

Russell Hind wrote:

> I have a std::list of boost::function0<void>  I would like to call all
> items using a for_each statement.  Is there a standard function object
> that I can pass into the for_each call that will call operator() on each
> element?

Yes, std::mem_fun_ref. Complete example tested with g++ 3.2 is at the end.

HTH,
Volodya

#include <boost/function.hpp>
using namespace boost;

#include <vector>
#include <functional>
#include <iostream>
#include <algorithm>
using namespace std;

void foo()
{
    cout << "foo\n";
}

int main()
{
    vector<function0<void> > v;
    v.push_back(foo);
    
    for_each(v.begin(), v.end(), mem_fun_ref(&function0<void>::operator()));

    return 0;
}