| /*============================================================================= |
| 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 <cmath> |
| #include <algorithm> |
| #include <vector> |
| |
| #define PHOENIX_LIMIT 5 |
| |
| #include <boost/detail/lightweight_test.hpp> |
| #include <boost/spirit/include/phoenix_core.hpp> |
| #include <boost/spirit/include/phoenix_operator.hpp> |
| #include <boost/spirit/include/phoenix_scope.hpp> |
| #include <boost/spirit/include/phoenix_function.hpp> |
| |
| namespace boost { namespace phoenix |
| { |
| struct for_each_impl |
| { |
| template <typename C, typename F> |
| struct result |
| { |
| typedef void 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 |
| { |
| template <typename C, typename T> |
| struct result |
| { |
| typedef void 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(); |
| }} |
| |
| using namespace boost::phoenix; |
| using namespace boost::phoenix::arg_names; |
| using namespace boost::phoenix::local_names; |
| using namespace std; |
| |
| struct zzz {}; |
| |
| int |
| main() |
| { |
| { |
| int x = 1; |
| int y = lambda[_1]()(x); |
| BOOST_TEST(x == y); |
| } |
| |
| { |
| int x = 1, y = 10; |
| BOOST_TEST( |
| (_1 + lambda[_1 + 2])(x)(y) == 1+10+2 |
| ); |
| BOOST_TEST( |
| (_1 + lambda[-_1])(x)(y) == 1+-10 |
| ); |
| } |
| |
| { |
| int x = 1, y = 10, z = 13; |
| BOOST_TEST( |
| lambda(_a = _1, _b = _2) |
| [ |
| _1 + _a + _b |
| ] |
| (x, z)(y) == x + y + z |
| ); |
| } |
| |
| { |
| int x = 4; |
| int y = 5; |
| lambda(_a = _1)[_a = 555](x)(); |
| BOOST_TEST(x == 555); |
| (void)y; |
| } |
| |
| { |
| int x = 1; |
| long x2 = 2; |
| short x3 = 3; |
| char const* y = "hello"; |
| zzz z; |
| |
| BOOST_TEST(lambda[_1](x)(y) == y); |
| BOOST_TEST(lambda(_a = _1)[_a](x)(y) == x); |
| BOOST_TEST(lambda(_a = _1)[lambda[_a]](x)(y)(z) == x); |
| BOOST_TEST(lambda(_a = _1)[lambda[_a + _1]](x)(y)(x) == 2); |
| BOOST_TEST(lambda(_a = _1)[lambda(_b = _1)[_a + _b + _1]](x)(x2)(x3) == 6); |
| } |
| |
| { |
| int x = 1, y = 10; |
| BOOST_TEST( |
| (_1 + lambda(_a = _1)[_a + _1 + 2])(x)(y) == 1+1+10+2 |
| ); |
| } |
| |
| { |
| int x = 1, y = 10; |
| BOOST_TEST( |
| (_1 + |
| lambda(_a = _1) |
| [ |
| _a + lambda[_a + 2] |
| ] |
| ) |
| (x)(y)(y) == 1+1+1+2 |
| ); |
| } |
| |
| { |
| using boost::phoenix::for_each; |
| |
| int init[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; |
| std::vector<int> v(init, init+10); |
| |
| int x = 0; |
| for_each(_1, lambda(_a = _2)[_a += _1])(v, x); |
| BOOST_TEST(x == 55); |
| } |
| |
| { |
| using boost::phoenix::for_each; |
| using boost::phoenix::push_back; |
| |
| int x = 10; |
| std::vector<std::vector<int> > v(10); |
| |
| for_each(_1, lambda(_a = _2)[push_back(_1, _a)])(v, x); |
| |
| int y = 0; |
| for_each(arg1, lambda[ref(y) += _1[0]])(v); |
| BOOST_TEST(y == 100); |
| } |
| |
| { |
| int x = 1, y = 10, z = 13; |
| BOOST_TEST( |
| lambda(_a = _1, _b = _2) |
| [ |
| _1 + _a + _b |
| ] |
| (x, z)(y) == x + y + z |
| ); |
| } |
| |
| { |
| // $$$ Fixme. This should not be failing $$$ |
| int x = (let(_a = lambda[val(1)])[_a])()(); |
| //~ BOOST_TEST(x == 1); |
| } |
| |
| return boost::report_errors(); |
| } |
| |