| /*============================================================================= |
| Copyright (c) 2001-2006 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 <boost/detail/lightweight_test.hpp> |
| #include <boost/fusion/sequence/io/out.hpp> |
| #include <boost/fusion/view/single_view/single_view.hpp> |
| #include <boost/fusion/sequence/intrinsic/begin.hpp> |
| #include <boost/fusion/iterator/deref.hpp> |
| |
| struct X {}; |
| |
| template <typename OS> |
| OS& operator<<(OS& os, X const&) |
| { |
| os << "<X-object>"; |
| return os; |
| } |
| |
| void foo() {} |
| |
| int |
| main() |
| { |
| using namespace boost::fusion; |
| |
| std::cout << tuple_open('['); |
| std::cout << tuple_close(']'); |
| std::cout << tuple_delimiter(", "); |
| |
| { |
| single_view<int> view1(3); |
| std::cout << view1 << std::endl; |
| |
| #ifdef FUSION_TEST_FAIL |
| // single_view is immutable |
| *begin(view1) += 4; |
| #endif |
| std::cout << view1 << std::endl; |
| BOOST_TEST(*begin(view1) == 3); |
| BOOST_TEST(view1.val == 3); |
| |
| single_view<X> view2; |
| std::cout << view2 << std::endl; |
| } |
| |
| { |
| std::cout << make_single_view(1) << std::endl; |
| std::cout << make_single_view("Hello, World") << std::endl; |
| std::cout << make_single_view(&foo) << std::endl; |
| } |
| |
| return boost::report_errors(); |
| } |
| |