Revert "push_back: added support for not-copyable but moveable value-types li…"

This commit is contained in:
neilgroves
2018-01-03 14:36:50 +00:00
committed by GitHub
parent 5408f220dd
commit 5b2500872d
2 changed files with 1 additions and 116 deletions

View File

@ -20,37 +20,9 @@
namespace boost namespace boost
{ {
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) namespace range
namespace range_detail
{ {
template < class Container, class Range >
inline Container& push_back_impl( Container& on, Range&& from, std::false_type)
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<Range> ));
BOOST_ASSERT_MSG(!range_detail::is_same_object(on, from),
"cannot move from a container to itself");
on.insert( on.end(),
std::make_move_iterator(boost::begin(from)),
std::make_move_iterator(boost::end(from)));
return on;
}
template < class Container, class Range >
inline Container& push_back_impl( Container& on, const Range& from, std::true_type)
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const Range> ));
BOOST_ASSERT_MSG(!range_detail::is_same_object(on, from),
"cannot copy from a container to itself");
on.insert( on.end(), boost::begin(from), boost::end(from));
return on;
}
} //namespace range_detail
#endif
namespace range {
#if defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
template< class Container, class Range > template< class Container, class Range >
inline Container& push_back( Container& on, const Range& from ) inline Container& push_back( Container& on, const Range& from )
{ {
@ -62,19 +34,6 @@ inline Container& push_back( Container& on, const Range& from )
return on; return on;
} }
#else
template< class Container, class Range >
inline Container& push_back( Container& on, Range&& from )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<Container> ));
range_detail::push_back_impl(on,
std::forward<Range>(from),
std::is_lvalue_reference<Range>() );
return on;
}
#endif
} // namespace range } // namespace range
using range::push_back; using range::push_back;
} // namespace boost } // namespace boost

View File

@ -19,7 +19,6 @@
#include <list> #include <list>
#include <vector> #include <vector>
namespace namespace
{ {
template< class Container > template< class Container >
@ -59,76 +58,6 @@ namespace
test_push_back_impl< std::vector<std::size_t> >(); test_push_back_impl< std::vector<std::size_t> >();
test_push_back_impl< std::list<std::size_t> >(); test_push_back_impl< std::list<std::size_t> >();
} }
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
// test type which is not copyable by moveable.
class noncopyable_int : boost::noncopyable {
private:
int i;
public:
noncopyable_int(int x) : i(x) {}
noncopyable_int(const noncopyable_int&) = delete;
noncopyable_int& operator=(const noncopyable_int&) = delete;
noncopyable_int(noncopyable_int&& o) : i(o.i) {}
noncopyable_int& operator=(noncopyable_int&& o) { return o; }
bool operator!=(const noncopyable_int &rhs) { return i != rhs.i; }
friend std::ostream &operator<<(std::ostream &os, const noncopyable_int& x);
};
std::ostream & operator<<(std::ostream &os, const noncopyable_int& x)
{
return os << x.i;
}
template< class Container >
void test_push_back_move_impl(std::size_t n)
{
Container test;
Container reference;
for (std::size_t i = 0; i < n; ++i)
reference.push_back(noncopyable_int(i));
{
Container to_push_back;
for (std::size_t i = 0; i < n; ++i)
to_push_back.push_back(noncopyable_int(i));
boost::push_back(test, std::move(to_push_back));
BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(),
test.begin(), test.end() );
}
// Do it again to push onto non-empty container
for (std::size_t i = 0; i < n; ++i)
reference.push_back(noncopyable_int(i));
{
Container to_push_back;
for (std::size_t i = 0; i < n; ++i)
to_push_back.push_back(noncopyable_int(i));
boost::push_back(test, std::move(to_push_back));
BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(),
test.begin(), test.end() );
}
}
template< class Container >
void test_push_back_move_impl()
{
test_push_back_move_impl< Container >(0);
test_push_back_move_impl< Container >(1);
test_push_back_move_impl< Container >(2);
test_push_back_move_impl< Container >(100);
}
void test_push_back_move()
{
test_push_back_move_impl< std::vector<noncopyable_int> >();
test_push_back_move_impl< std::list<noncopyable_int> >();
}
#endif
} }
boost::unit_test::test_suite* boost::unit_test::test_suite*
@ -138,9 +67,6 @@ init_unit_test_suite(int argc, char* argv[])
= BOOST_TEST_SUITE( "RangeTestSuite.algorithm_ext.push_back" ); = BOOST_TEST_SUITE( "RangeTestSuite.algorithm_ext.push_back" );
test->add( BOOST_TEST_CASE( &test_push_back ) ); test->add( BOOST_TEST_CASE( &test_push_back ) );
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
test->add( BOOST_TEST_CASE( &test_push_back_move ) );
#endif
return test; return test;
} }