Main.cc: In function ‘int main()’:
Main.cc:9:13: error: no match for ‘operator-’ (operand types are ‘std::string’ {aka ‘std::__cxx11::basic_string’} and ‘const char [2]’)
9 | a=a-"0"+"1";
| ~^~~~
| | |
| | const char [2]
| std::string {aka std::__cxx11::basic_string}
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/bits/stl_iterator.h:415:5: note: candidate: ‘template decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)’
415 | operator-(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_iterator.h:415:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::reverse_iterator<_Iterator>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/bits/stl_iterator.h:1209:5: note: candidate: ‘template decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)’
1209 | operator-(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_iterator.h:1209:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::move_iterator<_IteratorL>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:361:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const std::complex<_Tp>&)’
361 | operator-(const complex<_Tp>& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/9/complex:361:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::complex<_Tp>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:370:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const _Tp&)’
370 | operator-(const complex<_Tp>& __x, const _Tp& __y)
| ^~~~~~~~
/usr/include/c++/9/complex:370:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::complex<_Tp>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:379:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const _Tp&, const std::complex<_Tp>&)’
379 | operator-(const _Tp& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/9/complex:379:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: mismatched types ‘const std::complex<_Tp>’ and ‘const char [2]’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:456:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const std::complex<_Tp>&)’
456 | operator-(const complex<_Tp>& __x)
| ^~~~~~~~
/usr/include/c++/9/complex:456:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::complex<_Tp>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/deque:67,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:68,
from Main.cc:1:
/usr/include/c++/9/bits/stl_deque.h:370:5: note: candidate: ‘template typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)’
370 | operator-(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_deque.h:370:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/deque:67,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:68,
from Main.cc:1:
/usr/include/c++/9/bits/stl_deque.h:382:5: note: candidate: ‘template typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)’
382 | operator-(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_deque.h:382:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/vector:68,
from /usr/include/c++/9/queue:61,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:86,
from Main.cc:1:
/usr/include/c++/9/bits/stl_bvector.h:214:3: note: candidate: ‘std::ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&)’
214 | operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
| ^~~~~~~~
/usr/include/c++/9/bits/stl_bvector.h:214:39: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string’} to ‘const std::_Bit_iterator_base&’
214 | operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘const char [2]’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::valarray&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘const char [2]’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/valarray:1186:1: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::valarray<_Tp>&, const std::valarray<_Tp>&)’
1186 | _DEFINE_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/valarray:1186:1: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::valarray<_Tp>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/valarray:1186:1: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)’
1186 | _DEFINE_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/valarray:1186:1: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::valarray<_Tp>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/valarray:1186:1: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)’
1186 | _DEFINE_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/valarray:1186:1: note: template argument deduction/substitution failed:
Main.cc:9:14: note: mismatched types ‘const std::valarray<_Tp>’ and ‘const char [2]’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/bits/stl_iterator.h:974:5: note: candidate: ‘template decltype ((__lhs.base() - __rhs.base())) __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)’
974 | operator-(const __normal_iterator<_IteratorL, _Container>& __lhs,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_iterator.h:974:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const __gnu_cxx::__normal_iterator<_IteratorL, _Container>’
9 | a=a-"0"+"1";
| ^~~
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/bits/stl_iterator.h:986:5: note: candidate: ‘template typename __gnu_cxx::__normal_iterator<_Iterator, _Container>::difference_type __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)’
986 | operator-(const __normal_iterator<_Iterator, _Container>& __lhs,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_iterator.h:986:5: note: template argument deduction/substitution failed:
Main.cc:9:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const __gnu_cxx::__normal_iterator<_Iterator, _Container>’
9 | a=a-"0"+"1";
| ^~~
Main.cc:11:13: error: no match for ‘operator-’ (operand types are ‘std::string’ {aka ‘std::__cxx11::basic_string’} and ‘const char [2]’)
11 | a=a-"1"+"01";
| ~^~~~
| | |
| | const char [2]
| std::string {aka std::__cxx11::basic_string}
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/bits/stl_iterator.h:415:5: note: candidate: ‘template decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)’
415 | operator-(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_iterator.h:415:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::reverse_iterator<_Iterator>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/bits/stl_iterator.h:1209:5: note: candidate: ‘template decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)’
1209 | operator-(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_iterator.h:1209:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::move_iterator<_IteratorL>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:361:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const std::complex<_Tp>&)’
361 | operator-(const complex<_Tp>& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/9/complex:361:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::complex<_Tp>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:370:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const _Tp&)’
370 | operator-(const complex<_Tp>& __x, const _Tp& __y)
| ^~~~~~~~
/usr/include/c++/9/complex:370:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::complex<_Tp>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:379:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const _Tp&, const std::complex<_Tp>&)’
379 | operator-(const _Tp& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/9/complex:379:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: mismatched types ‘const std::complex<_Tp>’ and ‘const char [2]’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from Main.cc:1:
/usr/include/c++/9/complex:456:5: note: candidate: ‘template std::complex<_Tp> std::operator-(const std::complex<_Tp>&)’
456 | operator-(const complex<_Tp>& __x)
| ^~~~~~~~
/usr/include/c++/9/complex:456:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::complex<_Tp>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/deque:67,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:68,
from Main.cc:1:
/usr/include/c++/9/bits/stl_deque.h:370:5: note: candidate: ‘template typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)’
370 | operator-(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_deque.h:370:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/deque:67,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:68,
from Main.cc:1:
/usr/include/c++/9/bits/stl_deque.h:382:5: note: candidate: ‘template typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)’
382 | operator-(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
| ^~~~~~~~
/usr/include/c++/9/bits/stl_deque.h:382:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/vector:68,
from /usr/include/c++/9/queue:61,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:86,
from Main.cc:1:
/usr/include/c++/9/bits/stl_bvector.h:214:3: note: candidate: ‘std::ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&)’
214 | operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
| ^~~~~~~~
/usr/include/c++/9/bits/stl_bvector.h:214:39: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string’} to ‘const std::_Bit_iterator_base&’
214 | operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘const char [2]’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: ‘std::string’ {aka ‘std::__cxx11::basic_string’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/c++/9/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from Main.cc:1:
/usr/include/c++/9/bits/valarray_after.h:406:5: note: candidate: ‘template std::_Expr, typename std::__fun::result_type> std::operator-(const std::valarray&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’
406 | _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/bits/valarray_after.h:406:5: note: template argument deduction/substitution failed:
Main.cc:11:14: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘const char [2]’
11 | a=a-"1"+"01";
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,