forked from boostorg/fusion
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2006 Joel de Guzman
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Use, modification and distribution is subject to the Boost Software
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License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/fusion/sequence/io/out.hpp>
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#include <boost/fusion/sequence/view/single_view/single_view.hpp>
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#include <boost/fusion/sequence/intrinsic/begin.hpp>
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#include <boost/fusion/iterator/deref.hpp>
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struct X {};
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template <typename OS>
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OS& operator<<(OS& os, X const&)
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{
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os << "<X-object>";
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return os;
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}
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void foo() {}
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int
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main()
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{
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using namespace boost::fusion;
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std::cout << tuple_open('[');
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std::cout << tuple_close(']');
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std::cout << tuple_delimiter(", ");
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{
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single_view<int> view1(3);
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std::cout << view1 << std::endl;
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#ifdef FUSION_TEST_FAIL
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// single_view is immutable
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*begin(view1) += 4;
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#endif
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std::cout << view1 << std::endl;
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BOOST_TEST(*begin(view1) == 3);
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BOOST_TEST(view1.val == 3);
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single_view<X> view2;
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std::cout << view2 << std::endl;
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}
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{
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std::cout << make_single_view(1) << std::endl;
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std::cout << make_single_view("Hello, World") << std::endl;
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std::cout << make_single_view(&foo) << std::endl;
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}
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return boost::report_errors();
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}
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