libs/phoenix/example/function.cpp
/*=============================================================================
Copyright (c) 2001-2003 Joel de Guzman
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 <vector>
#include <algorithm>
#include <iostream>
#include <boost/phoenix/core.hpp>
#include <boost/phoenix/function.hpp>
using boost::phoenix::function;
struct is_odd_
{
typedef bool result_type;
template <typename Arg>
bool operator()(Arg arg1) const
{
return arg1 % 2 == 1;
}
};
function<is_odd_> is_odd;
int
main()
{
using boost::phoenix::arg_names::arg1;
int init[] = { 2, 10, 4, 5, 1, 6, 8, 3, 9, 7 };
std::vector<int> c(init, init + 10);
typedef std::vector<int>::iterator iterator;
// Find the first odd number in container c
iterator it = std::find_if(c.begin(), c.end(), is_odd(arg1));
if (it != c.end())
std::cout << *it << std::endl; // if found, print the result
return 0;
}