foo.cc: In function 'int main()':
foo.cc:9:14: error: no match for 'operator<' (operand types are 'std::basic_ostream<char>' and '<unresolved overloaded function type>')
cout<<"YES"<endl;
~~~~~~~~~~~^~~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1004:5: note: candidate: template<class _BiIter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)
operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1004:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1083:5: note: candidate: template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)
operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1083:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1163:5: note: candidate: template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)
operator<(const sub_match<_Bi_iter>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1163:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1240:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)
operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1240:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Bi_iter'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1314:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)
operator<(const sub_match<_Bi_iter>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1314:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1391:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)
operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1391:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Bi_iter'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/regex:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
from foo.cc:1:
/usr/include/c++/7/bits/regex.h:1471:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)
operator<(const sub_match<_Bi_iter>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/regex.h:1471:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/future:39:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:105,
from foo.cc:1:
/usr/include/c++/7/thread:281:3: note: candidate: bool std::operator<(std::thread::id, std::thread::id)
operator<(thread::id __x, thread::id __y) noexcept
^~~~~~~~
/usr/include/c++/7/thread:281:3: note: no known conversion for argument 1 from 'std::basic_ostream<char>' to 'std::thread::id'
In file included from /usr/include/c++/7/forward_list:38:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:104,
from foo.cc:1:
/usr/include/c++/7/bits/forward_list.h:1388:5: note: candidate: template<class _Tp, class _Alloc> bool std::operator<(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)
operator<(const forward_list<_Tp, _Alloc>& __lx,
^~~~~~~~
/usr/include/c++/7/bits/forward_list.h:1388:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::forward_list<_Tp, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95:0,
from foo.cc:1:
/usr/include/c++/7/valarray:1186:1: note: candidate: std::_Expr<std::_BinClos<std::__less, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__less, _Tp>::result_type> std::operator<(const _Tp&, const std::valarray<_Tp>&) [with _Tp = std::basic_ostream<char>; typename std::__fun<std::__less, _Tp>::result_type = bool]
_DEFINE_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/valarray:1186:1: note: no known conversion for argument 2 from '<unresolved overloaded function type>' to 'const std::valarray<std::basic_ostream<char> >&'
/usr/include/c++/7/valarray:1186:1: note: candidate: template<class _Tp> std::_Expr<std::_BinClos<std::__less, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__less, _Tp>::result_type> std::operator<(const std::valarray<_Tp>&, const _Tp&)
_DEFINE_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/valarray:1186:1: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::valarray<_Tp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95:0,
from foo.cc:1:
/usr/include/c++/7/valarray:1186:1: note: candidate: template<class _Tp> std::_Expr<std::_BinClos<std::__less, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__less, _Tp>::result_type> std::operator<(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
_DEFINE_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/valarray:1186:1: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::valarray<_Tp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/valarray:592:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95,
from foo.cc:1:
/usr/include/c++/7/bits/valarray_after.h:416:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__less, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
_DEFINE_EXPR_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/bits/valarray_after.h:416:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Dom'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/valarray:592:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95,
from foo.cc:1:
/usr/include/c++/7/bits/valarray_after.h:416:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__less, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)
_DEFINE_EXPR_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/bits/valarray_after.h:416:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/valarray:592:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95,
from foo.cc:1:
/usr/include/c++/7/bits/valarray_after.h:416:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__less, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
_DEFINE_EXPR_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/bits/valarray_after.h:416:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Dom'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/valarray:592:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95,
from foo.cc:1:
/usr/include/c++/7/bits/valarray_after.h:416:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__less, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)
_DEFINE_EXPR_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/bits/valarray_after.h:416:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/valarray:592:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95,
from foo.cc:1:
/usr/include/c++/7/bits/valarray_after.h:416:5: note: candidate: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__less, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)
_DEFINE_EXPR_BINARY_OPERATOR(<, __less)
^
/usr/include/c++/7/bits/valarray_after.h:416:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/stack:61:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:89,
from foo.cc:1:
/usr/include/c++/7/bits/stl_stack.h:311:5: note: candidate: template<class _Tp, class _Seq> bool std::operator<(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)
operator<(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
^~~~~~~~
/usr/include/c++/7/bits/stl_stack.h:311:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::stack<_Tp, _Seq>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/set:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:87,
from foo.cc:1:
/usr/include/c++/7/bits/stl_multiset.h:913:5: note: candidate: template<class _Key, class _Compare, class _Alloc> bool std::operator<(const std::multiset<_Key, _Compare, _Alloc>&, const std::multiset<_Key, _Compare, _Alloc>&)
operator<(const multiset<_Key, _Compare, _Alloc>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_multiset.h:913:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::multiset<_Key, _Compare, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/set:61:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:87,
from foo.cc:1:
/usr/include/c++/7/bits/stl_set.h:930:5: note: candidate: template<class _Key, class _Compare, class _Alloc> bool std::operator<(const std::set<_Key, _Compare, _Alloc>&, const std::set<_Key, _Compare, _Alloc>&)
operator<(const set<_Key, _Compare, _Alloc>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_set.h:930:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::set<_Key, _Compare, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/queue:64:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:86,
from foo.cc:1:
/usr/include/c++/7/bits/stl_queue.h:336:5: note: candidate: 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/include/c++/7/bits/stl_queue.h:336:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::queue<_Tp, _Seq>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/vector:64:0,
from /usr/include/c++/7/queue:61,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:86,
from foo.cc:1:
/usr/include/c++/7/bits/stl_vector.h:1618:5: note: candidate: 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/include/c++/7/bits/stl_vector.h:1618:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::vector<_Tp, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/memory:81:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:82,
from foo.cc:1:
/usr/include/c++/7/bits/shared_ptr.h:416:5: note: candidate: template<class _Tp> bool std::operator<(std::nullptr_t, const std::shared_ptr<_Tp>&)
operator<(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
^~~~~~~~
/usr/include/c++/7/bits/shared_ptr.h:416:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Tp'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/memory:81:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:82,
from foo.cc:1:
/usr/include/c++/7/bits/shared_ptr.h:408:5: note: candidate: template<class _Tp> bool std::operator<(const std::shared_ptr<_Tp>&, std::nullptr_t)
operator<(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
^~~~~~~~
/usr/include/c++/7/bits/shared_ptr.h:408:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::shared_ptr<_Tp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/memory:81:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:82,
from foo.cc:1:
/usr/include/c++/7/bits/shared_ptr.h:398:5: note: candidate: template<class _Tp, class _Up> bool std::operator<(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Up>&)
operator<(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
^~~~~~~~
/usr/include/c++/7/bits/shared_ptr.h:398:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::shared_ptr<_Tp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/shared_ptr.h:52:0,
from /usr/include/c++/7/memory:81,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:82,
from foo.cc:1:
/usr/include/c++/7/bits/shared_ptr_base.h:1460:5: note: candidate: template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator<(std::nullptr_t, const std::__shared_ptr<_Tp, _Lp>&)
operator<(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
^~~~~~~~
/usr/include/c++/7/bits/shared_ptr_base.h:1460:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Tp'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/shared_ptr.h:52:0,
from /usr/include/c++/7/memory:81,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:82,
from foo.cc:1:
/usr/include/c++/7/bits/shared_ptr_base.h:1452:5: note: candidate: template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator<(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)
operator<(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
^~~~~~~~
/usr/include/c++/7/bits/shared_ptr_base.h:1452:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__shared_ptr<_Tp, _Lp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/shared_ptr.h:52:0,
from /usr/include/c++/7/memory:81,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:82,
from foo.cc:1:
/usr/include/c++/7/bits/shared_ptr_base.h:1441:5: note: candidate: template<class _Tp, class _Up, __gnu_cxx::_Lock_policy _Lp> bool std::operator<(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)
operator<(const __shared_ptr<_Tp, _Lp>& __a,
^~~~~~~~
/usr/include/c++/7/bits/shared_ptr_base.h:1441:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__shared_ptr<_Tp1, _Lp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/map:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:81,
from foo.cc:1:
/usr/include/c++/7/bits/stl_multimap.h:1076:5: note: candidate: template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator<(const std::multimap<_Key, _Tp, _Compare, _Alloc>&, const std::multimap<_Key, _Tp, _Compare, _Alloc>&)
operator<(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_multimap.h:1076:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/map:61:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:81,
from foo.cc:1:
/usr/include/c++/7/bits/stl_map.h:1411:5: note: candidate: template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator<(const std::map<_Key, _Tp, _Compare, _Alloc>&, const std::map<_Key, _Tp, _Compare, _Alloc>&)
operator<(const map<_Key, _Tp, _Compare, _Alloc>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_map.h:1411:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::map<_Key, _Tp, _Compare, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/map:60:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:81,
from foo.cc:1:
/usr/include/c++/7/bits/stl_tree.h:1543:5: note: candidate: template<class _Key, class _Val, class _KeyOfValue, class _Compare, class _Alloc> bool std::operator<(const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&, const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&)
operator<(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_tree.h:1543:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/list:63:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:79,
from foo.cc:1:
/usr/include/c++/7/bits/stl_list.h:1918:5: note: candidate: template<class _Tp, class _Alloc> bool std::operator<(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)
operator<(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
^~~~~~~~
/usr/include/c++/7/bits/stl_list.h:1918:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::list<_Tp, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/locale_conv.h:41:0,
from /usr/include/c++/7/locale:43,
from /usr/include/c++/7/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72,
from foo.cc:1:
/usr/include/c++/7/bits/unique_ptr.h:730:5: note: candidate: template<class _Tp, class _Dp> bool std::operator<(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)
operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
^~~~~~~~
/usr/include/c++/7/bits/unique_ptr.h:730:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: couldn't deduce template parameter '_Tp'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/locale_conv.h:41:0,
from /usr/include/c++/7/locale:43,
from /usr/include/c++/7/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72,
from foo.cc:1:
/usr/include/c++/7/bits/unique_ptr.h:724:5: note: candidate: template<class _Tp, class _Dp> bool std::operator<(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)
operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
^~~~~~~~
/usr/include/c++/7/bits/unique_ptr.h:724:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/locale_conv.h:41:0,
from /usr/include/c++/7/locale:43,
from /usr/include/c++/7/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:72,
from foo.cc:1:
/usr/include/c++/7/bits/unique_ptr.h:713:5: note: candidate: template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator<(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)
operator<(const unique_ptr<_Tp, _Dp>& __x,
^~~~~~~~
/usr/include/c++/7/bits/unique_ptr.h:713:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/functional:54:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:71,
from foo.cc:1:
/usr/include/c++/7/tuple:1410:5: note: candidate: template<class ... _TElements, class ... _UElements> constexpr bool std::operator<(const std::tuple<_Tps ...>&, const std::tuple<_Elements ...>&)
operator<(const tuple<_TElements...>& __t,
^~~~~~~~
/usr/include/c++/7/tuple:1410:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::tuple<_Tps ...>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/tuple:39:0,
from /usr/include/c++/7/functional:54,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:71,
from foo.cc:1:
/usr/include/c++/7/array:262:5: note: candidate: template<class _Tp, long unsigned int _Nm> bool std::operator<(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)
operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
^~~~~~~~
/usr/include/c++/7/array:262:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::array<_Tp, _Nm>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/deque:64:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:68,
from foo.cc:1:
/usr/include/c++/7/bits/stl_deque.h:2276:5: note: candidate: 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/include/c++/7/bits/stl_deque.h:2276:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::deque<_Tp, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/deque:64:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:68,
from foo.cc:1:
/usr/include/c++/7/bits/stl_deque.h:301:5: note: candidate: 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/include/c++/7/bits/stl_deque.h:301:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/deque:64:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:68,
from foo.cc:1:
/usr/include/c++/7/bits/stl_deque.h:293:5: note: candidate: 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/include/c++/7/bits/stl_deque.h:293:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/ios_base.h:46:0,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/system_error:282:3: note: candidate: bool std::operator<(const std::error_condition&, const std::error_condition&)
operator<(const error_condition& __lhs,
^~~~~~~~
/usr/include/c++/7/system_error:282:3: note: no known conversion for argument 1 from 'std::basic_ostream<char>' to 'const std::error_condition&'
/usr/include/c++/7/system_error:208:3: note: candidate: bool std::operator<(const std::error_code&, const std::error_code&)
operator<(const error_code& __lhs, const error_code& __rhs) noexcept
^~~~~~~~
/usr/include/c++/7/system_error:208:3: note: no known conversion for argument 1 from 'std::basic_ostream<char>' to 'const std::error_code&'
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:6119:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator<(const _CharT* __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6119:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: mismatched types 'const _CharT*' and 'std::basic_ostream<char>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:6107:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6107:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:6094:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6094:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/stl_iterator.h:1151:5: note: candidate: template<class _Iterator> bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)
operator<(const move_iterator<_Iterator>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1151:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/stl_iterator.h:1145:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)
operator<(const move_iterator<_IteratorL>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1145:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/stl_iterator.h:346:5: note: candidate: 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/include/c++/7/bits/stl_iterator.h:346:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/stl_iterator.h:308:5: note: candidate: template<class _Iterator> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
operator<(const reverse_iterator<_Iterator>& __x,
^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:308:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
cout<<"YES"<endl;
^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:64:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from foo.cc:1:
/usr/include/c++/7/bits/stl_pair.h:454:5: note: candidate: 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/include/c++/7/bits/stl_pair.h:454:5: note: template argument deduction/substitution failed:
foo.cc:9:15: note: 'std::basic_ostream<char>' is not derived from 'const std::pair<_T1, _T2>'
cout<<"YES"<endl;
^~~~
dzc20080727 LV 9
undefined
