forked from boostorg/fusion
89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
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/*=============================================================================
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Copyright (c) 1999-2003 Jaakko J<EFBFBD>rvi
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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/intrinsic/at.hpp>
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#include <boost/fusion/sequence/comparison/equal_to.hpp>
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#include <string>
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#if !defined(FUSION_AT)
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#define FUSION_AT at_c
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#endif
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#if !defined(FUSION_MAKE)
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#define FUSION_MAKE BOOST_PP_CAT(make_, FUSION_SEQUENCE)
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#endif
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namespace
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{
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// something to prevent warnings for unused variables
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template<class T> void dummy(const T&) {}
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class A {};
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class B {};
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}
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void make_tuple_test() {}
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void
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test()
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{
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using namespace boost::fusion;
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{
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FUSION_SEQUENCE<int, char> t1 = FUSION_MAKE(5, 'a');
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BOOST_TEST(FUSION_AT<0>(t1) == 5);
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BOOST_TEST(FUSION_AT<1>(t1) == 'a');
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FUSION_SEQUENCE<int, std::string> t2;
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t2 = FUSION_MAKE((short int)2, std::string("Hi"));
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BOOST_TEST(FUSION_AT<0>(t2) == 2);
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BOOST_TEST(FUSION_AT<1>(t2) == "Hi");
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}
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{ // This test was previously disallowed for non-PTS compilers.
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A a = A(); B b;
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const A ca = a;
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FUSION_MAKE(boost::cref(a), b);
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FUSION_MAKE(boost::ref(a), b);
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FUSION_MAKE(boost::ref(a), boost::cref(b));
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FUSION_MAKE(boost::ref(ca));
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}
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{ // the result of make_xxx is assignable:
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BOOST_TEST(FUSION_MAKE(2, 4, 6) ==
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(FUSION_MAKE(1, 2, 3) = FUSION_MAKE(2, 4, 6)));
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}
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{ // This test was previously disallowed for non-PTS compilers.
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FUSION_MAKE("Donald", "Daisy"); // should work;
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// std::make_pair("Doesn't","Work"); // fails
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}
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{
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// You can store a reference to a function in a sequence
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FUSION_SEQUENCE<void(&)()> adf(make_tuple_test);
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dummy(adf); // avoid warning for unused variable
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}
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#if defined(FUSION_TEST_FAIL)
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{
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// But make_xxx doesn't work
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// with function references, since it creates a const
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// qualified function type
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FUSION_MAKE(make_tuple_test);
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}
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#endif
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{
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// With function pointers, make_xxx works just fine
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FUSION_MAKE(&make_tuple_test);
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}
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}
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