/*============================================================================= Copyright (c) 2001-2007 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 <iostream> #include <algorithm> #include <vector> #include <boost/phoenix/scope.hpp> #include <boost/phoenix/core.hpp> #include <boost/phoenix/operator.hpp> #include <boost/phoenix/function.hpp> namespace lazy_stuff { using boost::phoenix::function; struct for_each_impl { typedef void result_type; template <typename C, typename F> void operator()(C& c, F f) const { std::for_each(c.begin(), c.end(), f); } }; function<for_each_impl> const for_each = for_each_impl(); struct push_back_impl { typedef void result_type; template <typename C, typename T> void operator()(C& c, T& x) const { c.push_back(x); } }; function<push_back_impl> const push_back = push_back_impl(); } int main() { { using lazy_stuff::for_each; using lazy_stuff::push_back; using boost::phoenix::lambda; using boost::phoenix::arg_names::arg1; using boost::phoenix::arg_names::arg2; using boost::phoenix::local_names::_a; int x = 10; std::vector<std::vector<int> > v(10); for_each(arg1, lambda(_a = arg2) [ push_back(arg1, _a) ] ) (v, x); } return 0; }