| /*============================================================================= |
| Copyright (c) 1999-2003 Jaakko Jarvi |
| 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/intrinsic/at.hpp> |
| #include <boost/fusion/mpl.hpp> |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/mpl/insert_range.hpp> |
| #include <boost/mpl/vector.hpp> |
| #include <boost/mpl/begin.hpp> |
| #include <boost/mpl/equal.hpp> |
| #include <boost/static_assert.hpp> |
| |
| #if !defined(FUSION_AT) |
| #define FUSION_AT at_c |
| #endif |
| |
| #if !defined(FUSION_MAKE) |
| #define FUSION_MAKE BOOST_PP_CAT(make_, FUSION_SEQUENCE) |
| #endif |
| |
| #if !defined(FUSION_TIE) |
| #define FUSION_TIE BOOST_PP_CAT(FUSION_SEQUENCE, _tie) |
| #endif |
| |
| namespace test_detail |
| { |
| // classes with different kinds of conversions |
| class AA {}; |
| class BB : public AA {}; |
| struct CC { CC() {} CC(const BB&) {} }; |
| struct DD { operator CC() const { return CC(); }; }; |
| } |
| |
| boost::fusion::FUSION_SEQUENCE<double, double, double, double> |
| foo(int i) |
| { |
| return boost::fusion::FUSION_MAKE(i, i+1, i+2, i+3); |
| } |
| |
| void test_mpl() |
| { |
| using namespace boost::fusion; |
| |
| typedef FUSION_SEQUENCE<int, char> seq; |
| |
| typedef |
| boost::mpl::insert_range< |
| boost::mpl::vector<> |
| , boost::mpl::end< boost::mpl::vector<> >::type |
| , seq |
| >::type |
| sequence; |
| |
| typedef boost::mpl::equal<sequence, boost::mpl::vector<int, char> > equal; |
| BOOST_STATIC_ASSERT(equal::value); |
| } |
| |
| void |
| test() |
| { |
| using namespace boost::fusion; |
| using namespace test_detail; |
| |
| FUSION_SEQUENCE<int, char> t1(4, 'a'); |
| FUSION_SEQUENCE<int, char> t2(5, 'b'); |
| t2 = t1; |
| BOOST_TEST(FUSION_AT<0>(t1) == FUSION_AT<0>(t2)); |
| BOOST_TEST(FUSION_AT<1>(t1) == FUSION_AT<1>(t2)); |
| |
| FUSION_SEQUENCE<long, std::string> t3(2, "a"); |
| t3 = t1; |
| BOOST_TEST((double)FUSION_AT<0>(t1) == FUSION_AT<0>(t3)); |
| BOOST_TEST(FUSION_AT<1>(t1) == FUSION_AT<1>(t3)[0]); |
| |
| // testing copy and assignment with implicit conversions |
| // between elements testing tie |
| |
| FUSION_SEQUENCE<char, BB*, BB, DD> t; |
| FUSION_SEQUENCE<int, AA*, CC, CC> a(t); |
| a = t; |
| |
| int i; char c; double d; |
| FUSION_TIE(i, c, d) = FUSION_MAKE(1, 'a', 5.5); |
| |
| BOOST_TEST(i==1); |
| BOOST_TEST(c=='a'); |
| BOOST_TEST(d>5.4 && d<5.6); |
| |
| // returning a tuple with conversion |
| foo(2); |
| |
| test_mpl(); |
| } |