libs/bind/bind_visitor.cpp
#include <boost/config.hpp>
#if defined(BOOST_MSVC)
#pragma warning(disable: 4786) // identifier truncated in debug info
#pragma warning(disable: 4710) // function not inlined
#pragma warning(disable: 4711) // function selected for automatic inline expansion
#pragma warning(disable: 4514) // unreferenced inline removed
#endif
//
// bind_visitor.cpp - tests bind.hpp with a visitor
//
// Copyright (c) 2001 Peter Dimov and Multi Media Ltd.
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#include <boost/bind/bind.hpp>
#include <boost/ref.hpp>
#include <iostream>
#include <typeinfo>
using namespace boost::placeholders;
//
struct visitor
{
template<class T> void operator()( boost::reference_wrapper<T> const & r ) const
{
std::cout << "Reference to " << typeid(T).name() << " @ " << &r.get() << " (with value " << r.get() << ")\n";
}
template<class T> void operator()( T const & t ) const
{
std::cout << "Value of type " << typeid(T).name() << " (with value " << t << ")\n";
}
};
int f(int & i, int & j, int)
{
++i;
--j;
return i + j;
}
int x = 2;
int y = 7;
int main()
{
using namespace boost;
visitor v;
visit_each(v, bind<int>(bind(f, ref(x), _1, 42), ref(y)), 0);
}