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- /*=============================================================================
- 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;
- }
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