C++ 声明C++；使用自定义比较器的优先级队列
我一直在尝试实现一个由自定义数据类型和自定义比较器组成的优先级队列，但是当我尝试编译时，我得到了这个错误。我尝试了多个声明，但它们都会产生这个错误C++ 声明C++；使用自定义比较器的优先级队列,c++,compare,priority-queue,C++,Compare,Priority Queue,我一直在尝试实现一个由自定义数据类型和自定义比较器组成的优先级队列，但是当我尝试编译时，我得到了这个错误。我尝试了多个声明，但它们都会产生这个错误 priority_queue<myData, vector<myData>, myComp> myPQ; priority_queue<myData, vector<myData>, myComp> myPQ(compVariable); priority\u队列myPQ； 优先级队列myPQ（co
priority_queue<myData, vector<myData>, myComp> myPQ;
priority_queue<myData, vector<myData>, myComp> myPQ(compVariable);
priority\u队列myPQ；
优先级队列myPQ（compVariable）；
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h: In instantiation of ‘bool std::less<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = Order]’:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_heap.h:183:47: required from ‘void std::__push_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Order*, std::vector<Order, std::allocator<Order> > >; _Distance = long int; _Tp = Order; _Compare = std::less<Order>]’
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_heap.h:222:58: required from ‘void std::push_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Order*, std::vector<Order, std::allocator<Order> > >; _Compare = std::less<Order>]’
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_queue.h:499:41: required from ‘void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = Order; _Sequence = std::vector<Order, std::allocator<Order> >; _Compare = std::less<Order>; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = Order]’
Market.cpp:144:32: required from here
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: error: no match for ‘operator<’ (operand types are ‘const Order’ and ‘const Order’)
{ return __x < __y; }
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: candidates are:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_algobase.h:64:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/char_traits.h:39,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_pair.h:220:5: note: template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_pair.h:220:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::pair<_T1, _T2>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_algobase.h:67:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/char_traits.h:39,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:297:5: note: template<class _Iterator> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
operator<(const reverse_iterator<_Iterator>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:297:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::reverse_iterator<_Iterator>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_algobase.h:67:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/char_traits.h:39,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:347:5: note: template<class _IteratorL, class _IteratorR> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
operator<(const reverse_iterator<_IteratorL>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:347:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::reverse_iterator<_Iterator>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_algobase.h:67:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/char_traits.h:39,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:1055:5: note: template<class _IteratorL, class _IteratorR> bool std::operator<(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&)
operator<(const move_iterator<_IteratorL>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:1055:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::move_iterator<_Iterator>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_algobase.h:67:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/char_traits.h:39,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:1061:5: note: template<class _Iterator> bool std::operator<(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
operator<(const move_iterator<_Iterator>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_iterator.h:1061:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::move_iterator<_Iterator>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:52:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/basic_string.h:2569:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/basic_string.h:2569:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::basic_string<_CharT, _Traits, _Alloc>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:52:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/basic_string.h:2581:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/basic_string.h:2581:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::basic_string<_CharT, _Traits, _Alloc>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:52:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/basic_string.h:2593:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator<(const _CharT* __lhs,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/basic_string.h:2593:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: mismatched types ‘const _CharT*’ and ‘Order’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/vector:64:0,
from P2.h:4,
from Market.cpp:3:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_vector.h:1420:5: note: template<class _Tp, class _Alloc> bool std::operator<(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)
operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_vector.h:1420:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::vector<_Tp, _Alloc>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/deque:64:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/queue:60,
from Market.cpp:6:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_deque.h:273:5: note: template<class _Tp, class _Ref, class _Ptr> bool std::operator<(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
operator<(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_deque.h:273:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/deque:64:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/queue:60,
from Market.cpp:6:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_deque.h:281:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> bool std::operator<(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
operator<(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_deque.h:281:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/deque:64:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/queue:60,
from Market.cpp:6:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_deque.h:1975:5: note: template<class _Tp, class _Alloc> bool std::operator<(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)
operator<(const deque<_Tp, _Alloc>& __x,
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_deque.h:1975:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::deque<_Tp, _Alloc>’
{ return __x < __y; }
^
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/queue:64:0,
from Market.cpp:6:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_queue.h:286:5: note: template<class _Tp, class _Seq> bool std::operator<(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)
operator<(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
^
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_queue.h:286:5: note: template argument deduction/substitution failed:
In file included from /usr/um/gcc-4.8.2/include/c++/4.8.2/string:48:0,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/locale_classes.h:40,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/bits/ios_base.h:41,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ios:42,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/ostream:38,
from /usr/um/gcc-4.8.2/include/c++/4.8.2/iostream:39,
from Market.cpp:1:
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20: note: ‘const Order’ is not derived from ‘const std::queue<_Tp, _Seq>’
{ return __x < __y; }
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:bool std:：less:：operator（）（const_Tp&，const_Tp&）const[with _Tp=Order]的实例化：
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl\u heap.h:183:47:从“void std:：”中需要推送\u heap（_RandomAccessIterator，_Distance，_Distance，_Distance，_Tp，_Compare）[with _RandomAccessIterator=u gnu cxx:：u normal迭代器；_Distance=long int；_Tp=Order；_Compare=std:：less]
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_heap.h:222:58:从“void std:：push_heap（_RandomAccessIterator，_RandomAccessIterator，_Compare）[与_RandomAccessIterator=_gnucxx:_normal_iterator；_Compare=std:：less]中需要
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_queue.h:499:41:“void std：：priority_queue：：push（const value_type&）[with the _Tp=Order；_Sequence=std：：vector；_Compare=std：：less；std：：priority_queue：：value_type=Order]中的必填项
市场。cpp:144:32：从这里开始需要
/usr/um/gcc-4.8.2/include/c++/4.8.2/bits/stl_function.h:235:20:错误：与“operatorFrom”不匹配：
比较概念是一些标准图书馆设施从用户提供的功能对象类型中预期的一组要求
当上下文转换为bool
时，应用于Compare类型对象的函数调用操作的返回值，如果调用的第一个参数出现在由该比较类型引起的严格弱排序关系中的第二个参数之前，则生成true
，否则为false
与任何BinaryPredicate一样，不允许对该表达式的求值调用取消引用迭代器的非常量成员函数
myComp:：operator（）
的参数应该是const&
bool myComp::operator()(myData const& d1, myData const& d2) {
正如@T.C.在注释中指出的，函数本身应该是常量成员函数，但在这种情况下，这完全不是必需的。您确定您的“Order”类“第一个错误看起来像是您在没有任何自定义比较器的情况下使用了类型priority\u queue
。请发布一个我们可以编译的实例。@sithereal，使用自定义比较器的意义在于它不需要。对不起，我的意思是“您确定您的“Order”类有“（）”运算符重载吗？”void std:：priority\u queue:：push（const value\u type&）[with
…是的，看起来绝对像一个普通的优先级队列。操作符（）
本身应该是常量。
bool myComp::operator()(myData const& d1, myData const& d2) {