108 lines
2.7 KiB
C++
108 lines
2.7 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2007 Joel de Guzman
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Copyright (c) 2014 John Fletcher
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <iostream>
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#include <cmath>
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#include <algorithm>
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#include <vector>
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#include <typeinfo>
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/phoenix/core.hpp>
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#include <boost/phoenix/operator.hpp>
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#include <boost/phoenix/function.hpp>
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//#include <boost/phoenix/bind.hpp>
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#include <boost/phoenix/scope.hpp>
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namespace boost { namespace phoenix
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{
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struct for_each_impl
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{
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template <typename Sig>
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struct result;
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template <typename This, typename C, typename F>
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struct result<This(C,F)>
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{
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typedef void type;
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};
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template <typename C, typename F>
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void operator()(C& c, F f) const
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{
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std::for_each(c.begin(), c.end(), f);
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}
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};
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function<for_each_impl> const for_each = for_each_impl();
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struct push_back_impl
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{
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template <typename Sig>
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struct result;
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template <typename This, typename C, typename T>
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struct result<This(C,T)>
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{
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typedef void type;
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};
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template <typename C, typename T>
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void operator()(C& c, T& x) const
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{
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c.push_back(x);
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}
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};
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function<push_back_impl> const push_back = push_back_impl();
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}}
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int
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main()
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{
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using boost::phoenix::lambda;
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using boost::phoenix::let;
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using boost::phoenix::ref;
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using boost::phoenix::val;
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using boost::phoenix::arg_names::_1;
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using boost::phoenix::arg_names::_2;
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using boost::phoenix::local_names::_a;
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// using boost::phoenix::local_names::_b;
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using boost::phoenix::placeholders::arg1;
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{
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using boost::phoenix::for_each;
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//#if (!defined(BOOST_MSVC) || (BOOST_MSVC < 1800))
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int init[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
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std::vector<int> v(init, init+10);
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int x = 0;
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for_each(_1, lambda(_a = _2)[_a += _1])(v, x);
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BOOST_TEST(x == 55);
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//#endif
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}
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{
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using boost::phoenix::for_each;
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using boost::phoenix::push_back;
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//#if (!defined(BOOST_MSVC) || (BOOST_MSVC < 1800))
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int x = 10;
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std::vector<std::vector<int> > v(10);
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for_each(_1, lambda(_a = _2)[push_back(_1, _a)])(v, x);
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int y = 0;
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for_each(arg1, lambda[ref(y) += _1[0]])(v);
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BOOST_TEST(y == 100);
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//#endif
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}
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return boost::report_errors();
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}
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