foo.cc: In member function 'PolyListNode& PolyListNode::operator=(PolyListNode&)':
foo.cc:16:77: warning: no return statement in function returning non-void [-Wreturn-type]
16 | PolyListNode & operator = (PolyListNode &x){ coe = x.coe; index = x.index; }
| ^
| return *this;
foo.cc: In constructor 'PolyList::PolyList(int)':
foo.cc:31:6: warning: 'PolyList::n' will be initialized after [-Wreorder]
31 | int n; //数量
| ^
foo.cc:30:6: warning: 'int PolyList::size' [-Wreorder]
30 | int size; //有效范围
| ^~~~
foo.cc:33:2: warning: when initialized here [-Wreorder]
33 | PolyList(int n = 0):n(n),size(1){ a =new PolyListNode[size]; }
| ^~~~~~~~
foo.cc: In copy constructor 'PolyList::PolyList(const PolyList&)':
foo.cc:31:6: warning: 'PolyList::n' will be initialized after [-Wreorder]
31 | int n; //数量
| ^
foo.cc:30:6: warning: 'int PolyList::size' [-Wreorder]
30 | int size; //有效范围
| ^~~~
foo.cc:34:2: warning: when initialized here [-Wreorder]
34 | PolyList(const PolyList &p):n(0),size(1){a =new PolyListNode[size];*this = p; }
| ^~~~~~~~
In file included from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_algo.h: In instantiation of 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]':
/usr/include/c++/9/bits/stl_algo.h:1890:25: required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1976:31: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:4905:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = PolyListNode*; _Compare = bool (*)(PolyListNode&, PolyListNode&)]'
foo.cc:104:17: required from here
/usr/include/c++/9/bits/stl_algo.h:1855:3: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
1855 | __val = _GLIBCXX_MOVE(*__i);
| ^~~~~
foo.cc:15:30: note: initializing argument 1 of 'PolyListNode::PolyListNode(PolyListNode&)'
15 | PolyListNode (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_algo.h:1857:17: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
1857 | *__first = _GLIBCXX_MOVE(__val);
| ^
foo.cc:16:43: note: initializing argument 1 of 'PolyListNode& PolyListNode::operator=(PolyListNode&)'
16 | PolyListNode & operator = (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/bits/stl_algo.h:61,
from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_heap.h: In instantiation of 'void std::__make_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare&) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]':
/usr/include/c++/9/bits/stl_algo.h:1677:23: required from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1938:25: required from 'void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1953:27: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = PolyListNode*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1973:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:4905:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = PolyListNode*; _Compare = bool (*)(PolyListNode&, PolyListNode&)]'
foo.cc:104:17: required from here
/usr/include/c++/9/bits/stl_heap.h:341:15: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
341 | _ValueType __value = _GLIBCXX_MOVE(*(__first + __parent));
| ^~~~~~~
foo.cc:15:30: note: initializing argument 1 of 'PolyListNode::PolyListNode(PolyListNode&)'
15 | PolyListNode (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/bits/stl_algo.h:61,
from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_heap.h:342:22: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
342 | std::__adjust_heap(__first, __parent, __len, _GLIBCXX_MOVE(__value),
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
343 | __comp);
| ~~~~~~~
foo.cc:15:30: note: initializing argument 1 of 'PolyListNode::PolyListNode(PolyListNode&)'
15 | PolyListNode (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/bits/stl_algo.h:61,
from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_heap.h:215:26: note: initializing argument 4 of 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = PolyListNode*; _Distance = long int; _Tp = PolyListNode; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
215 | _Distance __len, _Tp __value, _Compare __comp)
| ~~~~^~~~~~~
/usr/include/c++/9/bits/stl_heap.h: In instantiation of 'void std::__pop_heap(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare&) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]':
/usr/include/c++/9/bits/stl_algo.h:1680:19: required from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1938:25: required from 'void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1953:27: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = PolyListNode*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1973:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:4905:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = PolyListNode*; _Compare = bool (*)(PolyListNode&, PolyListNode&)]'
foo.cc:104:17: required from here
/usr/include/c++/9/bits/stl_heap.h:251:18: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
251 | _ValueType __value = _GLIBCXX_MOVE(*__result);
| ^~~~~~~
foo.cc:15:30: note: initializing argument 1 of 'PolyListNode::PolyListNode(PolyListNode&)'
15 | PolyListNode (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/bits/stl_algo.h:61,
from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_heap.h:252:17: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
252 | *__result = _GLIBCXX_MOVE(*__first);
| ^
foo.cc:16:43: note: initializing argument 1 of 'PolyListNode& PolyListNode::operator=(PolyListNode&)'
16 | PolyListNode & operator = (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/bits/stl_algo.h:61,
from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_heap.h:253:25: error: cannot bind non-const lvalue reference of type 'PolyListNode&' to an rvalue of type 'std::remove_reference<PolyListNode&>::type' {aka 'PolyListNode'}
253 | std::__adjust_heap(__first, _DistanceType(0),
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
254 | _DistanceType(__last - __first),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
255 | _GLIBCXX_MOVE(__value), __comp);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:15:30: note: initializing argument 1 of 'PolyListNode::PolyListNode(PolyListNode&)'
15 | PolyListNode (PolyListNode &x){ coe = x.coe; index = x.index; }
| ~~~~~~~~~~~~~~^
In file included from /usr/include/c++/9/bits/stl_algo.h:61,
from /usr/include/c++/9/algorithm:62,
from foo.cc:6:
/usr/include/c++/9/bits/stl_heap.h:215:26: note: initializing argument 4 of 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = PolyListNode*; _Distance = long int; _Tp = PolyListNode; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
215 | _Distance __len, _Tp __value, _Compare __comp)
| ~~~~^~~~~~~
In file included from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/ostream:38,
from /usr/include/c++/9/iostream:39,
from foo.cc:4:
/usr/include/c++/9/bits/stl_algobase.h: In instantiation of 'void std::iter_swap(_ForwardIterator1, _ForwardIterator2) [with _ForwardIterator1 = PolyListNode*; _ForwardIterator2 = PolyListNode*]':
/usr/include/c++/9/bits/stl_algo.h:84:20: required from 'void std::__move_median_to_first(_Iterator, _Iterator, _Iterator, _Iterator, _Compare) [with _Iterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1926:34: required from '_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1958:38: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = PolyListNode*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1973:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:4905:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = PolyListNode*; _Compare = bool (*)(PolyListNode&, PolyListNode&)]'
foo.cc:104:17: required from here
/usr/include/c++/9/bits/stl_algobase.h:151:11: error: no matching function for call to 'swap(PolyListNode&, PolyListNode&)'
151 | swap(*__a, *__b);
| ~~~~^~~~~~~~~~~~
In file included from /usr/include/c++/9/bits/nested_exception.h:40,
from /usr/include/c++/9/exception:144,
from /usr/include/c++/9/ios:39,
from /usr/include/c++/9/ostream:38,
from /usr/include/c++/9/iostream:39,
from foo.cc:4:
/usr/include/c++/9/bits/move.h:182:5: note: candidate: 'template<class _Tp> typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&)'
182 | swap(_Tp& __a, _Tp& __b)
| ^~~~
/usr/include/c++/9/bits/move.h:182:5: note: template argument deduction/substitution failed:
/usr/include/c++/9/bits/move.h: In substitution of 'template<class _Tp> typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&) [with _Tp = PolyListNode]':
/usr/include/c++/9/bits/stl_algobase.h:151:11: required from 'void std::iter_swap(_ForwardIterator1, _ForwardIterator2) [with _ForwardIterator1 = PolyListNode*; _ForwardIterator2 = PolyListNode*]'
/usr/include/c++/9/bits/stl_algo.h:84:20: required from 'void std::__move_median_to_first(_Iterator, _Iterator, _Iterator, _Iterator, _Compare) [with _Iterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1926:34: required from '_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1958:38: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = PolyListNode*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1973:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:4905:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = PolyListNode*; _Compare = bool (*)(PolyListNode&, PolyListNode&)]'
foo.cc:104:17: required from here
/usr/include/c++/9/bits/move.h:182:5: error: no type named 'type' in 'struct std::enable_if<false, void>'
/usr/include/c++/9/bits/stl_algobase.h: In instantiation of 'void std::iter_swap(_ForwardIterator1, _ForwardIterator2) [with _ForwardIterator1 = PolyListNode*; _ForwardIterator2 = PolyListNode*]':
/usr/include/c++/9/bits/stl_algo.h:84:20: required from 'void std::__move_median_to_first(_Iterator, _Iterator, _Iterator, _Iterator, _Compare) [with _Iterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1926:34: required from '_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1958:38: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = PolyListNode*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:1973:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = PolyListNode*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool (*)(PolyListNode&, PolyListNode&)>]'
/usr/include/c++/9/bits/stl_algo.h:4905:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = PolyListNode*; _Compare = bool (*)(PolyListNode&, PolyListNode&)]'
foo.cc:104:17: required from here
/usr/include/c++/9/bits/move.h:205:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> typename std::enable_if<std::__is_swappable<_Tp>::value>::type std::swap(_Tp (&)[_Nm], _Tp (&)[_Nm])'
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~~
/usr/include/c++/9/bits/move.h:205:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/ostream:38,
from /usr/include/c++/9/iostream:39,
from foo.cc:4:
/usr/include/c++/9/bits/stl_algobase.h:151:11: note: mismatched types '_Tp [_Nm]' and 'PolyListNode'
151 | swap(*__a, *__b);
| ~~~~^~~~~~~~~~~~
In file included from /usr/include/c++/9/bits/stl_algobase.h:64,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/ostream:38,
from /usr/include/c++/9/iostream:39,
from foo.cc:4:
/usr/include/c++/9/bits/stl_pair.h:495:5: note: candidate: 'template<class _T1, class _T2> void std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&)'
495 | swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
| ^~~~
/usr/include/c++/9/bits/stl_pair.h:495:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/ostream:38,
from /usr/include/c++/9/iostream:39,
from foo.cc:4:
/usr/include/c++/9/bits/stl_algobase.h:151:11: note: 'PolyListNode' is not derived from 'std::pair<_T1, _T2>'
151 | swap(*__a, *__b);
| ~~~~^~~~~~~~~~~~
08190422陈家伟 LV 7
undefined
