Author
anonymous
almost 8 years ago
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Author
anonymous
almost 8 years ago
$ prog.cc: In instantiation of 'main()::<lambda(const auto:1&)> [with auto:1 = std::__cxx11::basic_string<char>]':
prog.cc:7:8: required from here
prog.cc:16:62: error: no match for 'operator==' (operand types are 'const std::__cxx11::basic_string<char>' and 'int')
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:64:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_pair.h:443:5: 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)
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_pair.h:443:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::pair<_T1, _T2>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:67:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:299:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
operator==(const reverse_iterator<_Iterator>& __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:299:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:67:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:337:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
operator==(const reverse_iterator<_IteratorL>& __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:337:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:67:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:1119:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
operator==(const move_iterator<_IteratorL>& __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:1119:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::move_iterator<_IteratorL>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:67:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:1125:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
operator==(const move_iterator<_Iterator>& __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:1125:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::move_iterator<_IteratorL>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:40:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/postypes.h:216:5: note: candidate: 'template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)'
operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/postypes.h:216:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::fpos<_StateT>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/string:41:0,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/allocator.h:146:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)'
operator==(const allocator<_T1>&, const allocator<_T2>&)
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/allocator.h:146:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::allocator<_CharT>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/string:41:0,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/allocator.h:152:5: note: candidate: 'template<class _Tp> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_CharT>&)'
operator==(const allocator<_Tp>&, const allocator<_Tp>&)
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/allocator.h:152:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::allocator<_CharT>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:48:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/string_view:449:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
operator==(basic_string_view<_CharT, _Traits> __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/string_view:449:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:48:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/string_view:455:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__detail::__idt<std::basic_string_view<_CharT, _Traits> >)'
operator==(basic_string_view<_CharT, _Traits> __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/string_view:455:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:48:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/string_view:461:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(std::__detail::__idt<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)'
operator==(__detail::__idt<basic_string_view<_CharT, _Traits>> __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/string_view:461:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52:0,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5807:5: 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,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5807:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52:0,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5815:5: note: candidate: 'template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)'
operator==(const basic_string<_CharT>& __lhs,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5815:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: mismatched types 'const std::__cxx11::basic_string<_CharT>' and 'int'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52:0,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5829:5: 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,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5829:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: mismatched types 'const _CharT*' and 'std::__cxx11::basic_string<char>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/string:52:0,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5841:5: 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,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_string.h:5841:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: mismatched types 'const _CharT*' and 'int'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/ios_base.h:46:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/ios:42,
from /opt/wandbox/gcc-head/include/c++/8.0.0/ostream:38,
from /opt/wandbox/gcc-head/include/c++/8.0.0/iterator:64,
from prog.cc:2:
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:292:3: note: candidate: 'bool std::operator==(const std::error_code&, const std::error_code&)'
operator==(const error_code& __lhs, const error_code& __rhs) noexcept
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:292:3: note: no known conversion for argument 1 from 'const std::__cxx11::basic_string<char>' to 'const std::error_code&'
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:297:3: note: candidate: 'bool std::operator==(const std::error_code&, const std::error_condition&)'
operator==(const error_code& __lhs, const error_condition& __rhs) noexcept
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:297:3: note: no known conversion for argument 1 from 'const std::__cxx11::basic_string<char>' to 'const std::error_code&'
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:304:3: note: candidate: 'bool std::operator==(const std::error_condition&, const std::error_code&)'
operator==(const error_condition& __lhs, const error_code& __rhs) noexcept
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:304:3: note: no known conversion for argument 1 from 'const std::__cxx11::basic_string<char>' to 'const std::error_condition&'
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:311:3: note: candidate: 'bool std::operator==(const std::error_condition&, const std::error_condition&)'
operator==(const error_condition& __lhs,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/system_error:311:3: note: no known conversion for argument 1 from 'const std::__cxx11::basic_string<char>' to 'const std::error_condition&'
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/locale_facets.h:48:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/basic_ios.h:37,
from /opt/wandbox/gcc-head/include/c++/8.0.0/ios:44,
from /opt/wandbox/gcc-head/include/c++/8.0.0/ostream:38,
from /opt/wandbox/gcc-head/include/c++/8.0.0/iterator:64,
from prog.cc:2:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/streambuf_iterator.h:204:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)'
operator==(const istreambuf_iterator<_CharT, _Traits>& __a,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/streambuf_iterator.h:204:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/iterator:66:0,
from prog.cc:2:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stream_iterator.h:130:5: note: candidate: 'template<class _Tp, class _CharT, class _Traits, class _Dist> bool std::operator==(const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>&, const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>&)'
operator==(const istream_iterator<_Tp, _CharT, _Traits, _Dist>& __x,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stream_iterator.h:130:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/vector:64:0,
from prog.cc:3:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_vector.h:1596:5: 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)
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_vector.h:1596:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const std::vector<_Tp, _Alloc>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:67:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:860:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
operator==(const __normal_iterator<_IteratorL, _Container>& __lhs,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:860:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_algobase.h:67:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/char_traits.h:39,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:40,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:867:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
operator==(const __normal_iterator<_Iterator, _Container>& __lhs,
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/bits/stl_iterator.h:867:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
In file included from /opt/wandbox/gcc-head/include/c++/8.0.0/x86_64-pc-linux-gnu/bits/c++allocator.h:33:0,
from /opt/wandbox/gcc-head/include/c++/8.0.0/bits/allocator.h:46,
from /opt/wandbox/gcc-head/include/c++/8.0.0/string:41,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/8.0.0/ext/new_allocator.h:155:5: note: candidate: 'template<class _Tp> bool __gnu_cxx::operator==(const __gnu_cxx::new_allocator<_Tp>&, const __gnu_cxx::new_allocator<_Tp>&)'
operator==(const new_allocator<_Tp>&, const new_allocator<_Tp>&)
^~~~~~~~
/opt/wandbox/gcc-head/include/c++/8.0.0/ext/new_allocator.h:155:5: note: template argument deduction/substitution failed:
prog.cc:16:62: note: 'const std::__cxx11::basic_string<char>' is not derived from 'const __gnu_cxx::new_allocator<_Tp>'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
~~^~~~
prog.cc: In function 'int main()':
prog.cc:16:69: error: cannot call function 'Iterator find_if(Iterator, Iterator, F) [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; F = main()::<lambda(const auto:1&)>]'
find_if(vs.begin(), vs.end(), [](auto const& s) { return s == 2; }); //1
^
prog.cc:11:10: note: constraints not satisfied
Iterator find_if(Iterator b, Iterator e, F f);
^~~~~~~
prog.cc:6:14: note: within 'template<class F, class ... T> concept const bool Predicate<F, T ...> [with F = main()::<lambda(const auto:1&)>; T = {std::__iterator_traits<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >, void>::reference}]'
concept bool Predicate = requires(F f, T... t) {
^~~~~~~~~
prog.cc:6:14: note: with 'main()::<lambda(const auto:1&)> f'
prog.cc:6:14: note: with 'std::__cxx11::basic_string<char>& t#0'
prog.cc:6:14: note: 'f(t#0)' is not implicitly convertible to 'bool'
prog.cc:17:89: error: cannot call function 'Iterator find_if(Iterator, Iterator, F) [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; F = main()::<lambda(const auto:2&)>]'
find_if(vs.begin(), vs.end(), [](auto const& s) -> decltype(s == 2) { return s == 2; }); //2
^
prog.cc:11:10: note: constraints not satisfied
Iterator find_if(Iterator b, Iterator e, F f);
^~~~~~~
prog.cc:6:14: note: within 'template<class F, class ... T> concept const bool Predicate<F, T ...> [with F = main()::<lambda(const auto:2&)>; T = {std::__iterator_traits<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >, void>::reference}]'
concept bool Predicate = requires(F f, T... t) {
^~~~~~~~~
prog.cc:6:14: note: with 'main()::<lambda(const auto:2&)> f'
prog.cc:6:14: note: with 'std::__cxx11::basic_string<char>& t#0'
prog.cc:6:14: note: the required expression 'f(t ...)' would be ill-formed
Exit Code:
1