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/*=============================================================================
Copyright (c) 1999-2003 Jaakko Jrvi
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();
}
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