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fusion/test/sequence/conversion.hpp
Lee Clagett 5906d9c316 Make C++11 fusion::vector more consistent with C++03 fusion::vector 
- Construct from elements is enabled iff each argument is_convertible to
    corresponding element.
  - Construct from sequence is enabled iff the single argument is a fusion
    sequence.
  - C++11 vector and tuple also disable construct from sequence that are
    shorter than the destination. C++03 gives incorrect is_convertible
    responses in this situation and fails to compile if that constructor is
    used; C++11 can have instantation errors in
    and_<is_convertible<U, T>...> without the additional check.
  - C++11 tuple and vector support truncation conversion and assignment like
    all other sequences.
2016-08-26 12:45:11 -04:00

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/*=============================================================================
Copyright (c) 2016 Lee Clagett
Use modification and distribution are subject to the Boost Software
License, Version 1.0. (See accompanyintg file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt).
==============================================================================*/
#include <boost/config.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <boost/fusion/adapted/boost_tuple.hpp>
#include <boost/fusion/adapted/std_pair.hpp>
#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
# include <boost/fusion/adapted/std_tuple.hpp>
#endif
#include <boost/fusion/container/deque.hpp>
#include <boost/fusion/container/list.hpp>
#include <boost/fusion/tuple.hpp>
#include <boost/fusion/container/vector.hpp>
#include "fixture.hpp"
template <template <typename> class Scenario>
void test()
{
using namespace test_detail;
// Note the trunction conversion tests from each containter
// ... bug or feature?
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(FUSION_SEQUENCE<int>(300), 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::push_back(FUSION_SEQUENCE<int>(200), 400)
, FUSION_SEQUENCE<convertible>(200)
)
));
BOOST_TEST((run<Scenario<FUSION_SEQUENCE<> > >(boost::fusion::vector<>())));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<> > >(
boost::fusion::vector<int>(100), boost::fusion::vector<>()
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::vector<int>(110)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::vector<int, int>(200, 100)
, boost::fusion::vector<convertible>(200)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::vector<int, int>(200, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::vector<int, int, int>(500, 400, 100)
, boost::fusion::vector<convertible, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::vector<int>(500), 400
)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::vector<int, int>(500, 400), 100
)
, boost::fusion::vector<convertible, int>(500, 400)
)
));
BOOST_TEST((run<Scenario< FUSION_SEQUENCE<> > >(boost::fusion::deque<>())));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<> > >(
boost::fusion::deque<int>(100), boost::fusion::deque<>()
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::deque<int>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::deque<int, int>(500, 100)
, boost::fusion::deque<convertible>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::deque<int, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::deque<int, int, int>(500, 400, 100)
, boost::fusion::deque<convertible, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::deque<int>(500), 400
)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::deque<int, int>(500, 400), 100
)
, boost::fusion::deque<convertible, int>(500, 400)
)
));
BOOST_TEST((run< Scenario< FUSION_SEQUENCE<> > >(boost::fusion::list<>())));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<> > >(
boost::fusion::list<int>(100), boost::fusion::list<>()
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::list<int>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::list<int, int>(500, 100)
, boost::fusion::list<convertible>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::list<int, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::list<int, int, int>(500, 400, 100)
, boost::fusion::list<convertible, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::list<int>(500), 400
)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::list<int, int>(500, 400), 100
)
, boost::fusion::list<convertible, int>(500, 400)
)
));
BOOST_TEST((run<Scenario< FUSION_SEQUENCE<> > >(boost::fusion::tuple<>())));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<> > >(
boost::fusion::tuple<int>(100), boost::fusion::tuple<>()
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::tuple<int>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::fusion::tuple<int, int>(500, 100)
, boost::fusion::tuple<convertible>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::tuple<int, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::tuple<int, int, int>(500, 400, 100)
, boost::fusion::tuple<convertible, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::tuple<int>(500), 400
)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::fusion::tuple<int, int>(500, 400), 100
)
, boost::fusion::tuple<convertible, int>(500, 400)
)
));
BOOST_TEST((run< Scenario< FUSION_SEQUENCE<> > >(boost::tuple<>())));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<> > >(
boost::tuple<int>(100), boost::tuple<>()
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::tuple<int>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
boost::tuple<int, int>(500, 100)
, boost::tuple<convertible>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::tuple<int, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::tuple<int, int, int>(500, 400, 100)
, boost::tuple<convertible, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(boost::tuple<int>(500), 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
boost::tuple<int, int>(500, 400), 100
)
, boost::tuple<convertible, int>(500, 400)
)
));
#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
BOOST_TEST((run< Scenario< FUSION_SEQUENCE<> > >(std::tuple<>())));
BOOST_TEST((
run<Scenario<FUSION_SEQUENCE<> > >(std::tuple<int>(100), std::tuple<>())
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
std::tuple<int>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
std::tuple<int, int>(500, 100)
, std::tuple<convertible>(500)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
std::tuple<int, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
std::tuple<int, int, int>(500, 400, 100)
, std::tuple<convertible, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(std::tuple<int>(500), 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
boost::fusion::push_back(
std::tuple<int, int>(500, 400), 100
)
, std::tuple<convertible, int>(500, 400)
)
));
#endif
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible, int> > >(
std::pair<int, int>(500, 400)
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<> > >(
std::pair<int, int>(500, 400)
, boost::fusion::vector<>()
)
));
BOOST_TEST((
run< Scenario< FUSION_SEQUENCE<convertible> > >(
std::pair<int, int>(500, 400)
, boost::fusion::vector<convertible>(500)
)
));
}
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