| 1 | // Boost.TypeErasure library |
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| 2 | // |
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| 3 | // Copyright 2011 Steven Watanabe |
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| 4 | // |
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| 5 | // Distributed under the Boost Software License Version 1.0. (See |
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| 6 | // accompanying file LICENSE_1_0.txt or copy at |
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| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 8 | // |
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| 9 | // $Id$ |
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| 10 | |
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| 11 | #include <boost/type_erasure/any.hpp> |
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| 12 | #include <boost/type_erasure/tuple.hpp> |
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| 13 | #include <boost/type_erasure/builtin.hpp> |
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| 14 | #include <boost/type_erasure/operators.hpp> |
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| 15 | #include <boost/type_erasure/any_cast.hpp> |
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| 16 | #include <boost/mpl/vector.hpp> |
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| 17 | |
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| 18 | #define BOOST_TEST_MAIN |
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| 19 | #include <boost/test/unit_test.hpp> |
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| 20 | |
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| 21 | using namespace boost::type_erasure; |
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| 22 | |
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| 23 | class no_destroy |
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| 24 | { |
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| 25 | protected: |
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| 26 | ~no_destroy() {} |
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| 27 | }; |
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| 28 | |
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| 29 | class with_destroy : public no_destroy |
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| 30 | { |
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| 31 | public: |
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| 32 | ~with_destroy() {} |
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| 33 | }; |
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| 34 | |
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| 35 | template<class T = _self> |
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| 36 | struct common : ::boost::mpl::vector< |
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| 37 | destructible<T>, |
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| 38 | copy_constructible<T>, |
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| 39 | typeid_<T> |
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| 40 | > {}; |
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| 41 | |
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| 42 | BOOST_AUTO_TEST_CASE(test_basic) |
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| 43 | { |
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| 44 | typedef ::boost::mpl::vector<typeid_<> > test_concept; |
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| 45 | with_destroy val; |
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| 46 | any<test_concept, _self&> x(static_cast<no_destroy&>(val)); |
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| 47 | no_destroy& ref = any_cast<no_destroy&>(arg&: x); |
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| 48 | BOOST_CHECK_EQUAL(&ref, &val); |
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| 49 | } |
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| 50 | |
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| 51 | BOOST_AUTO_TEST_CASE(test_increment) |
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| 52 | { |
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| 53 | typedef ::boost::mpl::vector<incrementable<> > test_concept; |
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| 54 | int i = 0; |
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| 55 | any<test_concept, _self&> x(i); |
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| 56 | ++x; |
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| 57 | BOOST_CHECK_EQUAL(i, 1); |
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| 58 | } |
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| 59 | |
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| 60 | BOOST_AUTO_TEST_CASE(test_add) |
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| 61 | { |
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| 62 | typedef ::boost::mpl::vector<common<>, addable<> > test_concept; |
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| 63 | int i = 1; |
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| 64 | int j = 2; |
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| 65 | any<test_concept, _self&> x(i); |
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| 66 | any<test_concept, _self&> y(j); |
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| 67 | any<test_concept, _self> z(x + y); |
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| 68 | int k = any_cast<int>(arg&: z); |
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| 69 | BOOST_CHECK_EQUAL(k, 3); |
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| 70 | } |
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| 71 | |
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| 72 | BOOST_AUTO_TEST_CASE(test_mixed_add) |
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| 73 | { |
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| 74 | typedef ::boost::mpl::vector<common<>, addable<> > test_concept; |
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| 75 | int i = 1; |
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| 76 | int j = 2; |
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| 77 | any<test_concept, _self&> x(i); |
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| 78 | any<test_concept, _self> y(j); |
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| 79 | any<test_concept, _self> z(x + y); |
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| 80 | int k = any_cast<int>(arg&: z); |
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| 81 | BOOST_CHECK_EQUAL(k, 3); |
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| 82 | } |
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| 83 | |
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