Complete Bind solution with protect

bind_protect_demo.cpp

#include <boost/assign/std/vector.hpp>
#include <boost/bind.hpp>
#include <boost/bind/protect.hpp>
#include <boost/function.hpp>

#include <iostream>
#include <vector>
#include <algorithm>

void g(boost::function<void(int)> const &f, int i) {
 f(i);
}

void f(int x) {
 std::cout << "x is " << x << std::endl;
}

using namespace boost::assign;

int main( )
{
    std::vector<int> v;
    v += 0,1,2,3,4,5,6;

    // 'protect' protects the bound function to be
    // evaluated. As such, we need to somehow safe the first
    // argument, and pass it to f again on the calling site g
    std::for_each( v.begin( ), v.end( ),
        boost::bind(g,
            boost::protect(boost::bind(f, _1)),
            _1)
    );
    return 0;
}