voici ce que donne #include <vector>

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#include <string>
#include <vector>
 
#include "recursgauche.hpp"
...
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$ g++ recursgauche.cpp
In file included from /usr/include/c++/10/vector:66,
                 from recursgauche.cpp:2:
/usr/include/c++/10/bits/stl_uninitialized.h: In instantiation of ‘_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _ForwardIterator = std::vector<std::__cxx11::basic_string<char> >*]’:
/usr/include/c++/10/bits/stl_uninitialized.h:325:37:   required from ‘_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _ForwardIterator = std::vector<std::__cxx11::basic_string<char> >*; _Tp = std::vector<std::__cxx11::basic_string<char> >]’
/usr/include/c++/10/bits/vector.tcc:751:34:   required from ‘void std::vector<_Tp, _Alloc>::_M_range_insert(std::vector<_Tp, _Alloc>::iterator, _ForwardIterator, _ForwardIterator, std::forward_iterator_tag) [with _ForwardIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Tp = std::vector<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::vector<std::__cxx11::basic_string<char> > >; std::vector<_Tp, _Alloc>::iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::iterator]’
/usr/include/c++/10/bits/stl_vector.h:1665:19:   required from ‘void std::vector<_Tp, _Alloc>::_M_insert_dispatch(std::vector<_Tp, _Alloc>::iterator, _InputIterator, _InputIterator, std::__false_type) [with _InputIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Tp = std::vector<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::vector<std::__cxx11::basic_string<char> > >; std::vector<_Tp, _Alloc>::iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::iterator]’
/usr/include/c++/10/bits/stl_vector.h:1383:22:   required from ‘std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(std::vector<_Tp, _Alloc>::const_iterator, _InputIterator, _InputIterator) [with _InputIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; <template-parameter-2-2> = void; _Tp = std::vector<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::vector<std::__cxx11::basic_string<char> > >; std::vector<_Tp, _Alloc>::iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::iterator; std::vector<_Tp, _Alloc>::const_iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::const_iterator]’
recursgauche.cpp:37:33:   required from here
/usr/include/c++/10/bits/stl_uninitialized.h:137:72: error: static assertion failed: result type must be constructible from value type of input range
  137 | static_assert(is_constructible<_ValueType2, decltype(*__first)>::value,
      |                                                                  ^~~~~
 
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/string:40,
                 from recursgauche.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h: In instantiation of ‘static _OI std::__copy_move<false, false, std::random_access_iterator_tag>::__copy_m(_II, _II, _OI) [with _II = std::__cxx11::basic_string<char>*; _OI = std::vector<std::__cxx11::basic_string<char> >*]’:
/usr/include/c++/10/bits/stl_algobase.h:472:30:   required from ‘_OI std::__copy_move_a2(_II, _II, _OI) [with bool _IsMove = false; _II = std::__cxx11::basic_string<char>*; _OI = std::vector<std::__cxx11::basic_string<char> >*]’
/usr/include/c++/10/bits/stl_algobase.h:506:42:   required from ‘_OI std::__copy_move_a1(_II, _II, _OI) [with bool _IsMove = false; _II = std::__cxx11::basic_string<char>*; _OI = std::vector<std::__cxx11::basic_string<char> >*]’
/usr/include/c++/10/bits/stl_algobase.h:514:31:   required from ‘_OI std::__copy_move_a(_II, _II, _OI) [with bool _IsMove = false; _II = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _OI = __gnu_cxx::__normal_iterator<std::vector<std::__cxx11::basic_string<char> >*, std::vector<std::vector<std::__cxx11::basic_string<char> > > >]’
/usr/include/c++/10/bits/stl_algobase.h:569:7:   required from ‘_OI std::copy(_II, _II, _OI) [with _II = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _OI = __gnu_cxx::__normal_iterator<std::vector<std::__cxx11::basic_string<char> >*, std::vector<std::vector<std::__cxx11::basic_string<char> > > >]’
/usr/include/c++/10/bits/vector.tcc:744:16:   required from ‘void std::vector<_Tp, _Alloc>::_M_range_insert(std::vector<_Tp, _Alloc>::iterator, _ForwardIterator, _ForwardIterator, std::forward_iterator_tag) [with _ForwardIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Tp = std::vector<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::vector<std::__cxx11::basic_string<char> > >; std::vector<_Tp, _Alloc>::iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::iterator]’
/usr/include/c++/10/bits/stl_vector.h:1665:19:   required from ‘void std::vector<_Tp, _Alloc>::_M_insert_dispatch(std::vector<_Tp, _Alloc>::iterator, _InputIterator, _InputIterator, std::__false_type) [with _InputIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Tp = std::vector<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::vector<std::__cxx11::basic_string<char> > >; std::vector<_Tp, _Alloc>::iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::iterator]’
/usr/include/c++/10/bits/stl_vector.h:1383:22:   required from ‘std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(std::vector<_Tp, _Alloc>::const_iterator, _InputIterator, _InputIterator) [with _InputIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; <template-parameter-2-2> = void; _Tp = std::vector<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::vector<std::__cxx11::basic_string<char> > >; std::vector<_Tp, _Alloc>::iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::iterator; std::vector<_Tp, _Alloc>::const_iterator = std::vector<std::vector<std::__cxx11::basic_string<char> > >::const_iterator]’
recursgauche.cpp:37:33:   required from here
/usr/include/c++/10/bits/stl_algobase.h:380:18: error: no match for ‘operator=’ (operand types are ‘std::vector<std::__cxx11::basic_string<char> >’ and ‘std::__cxx11::basic_string<char>’)
  380 |        *__result = *__first;
      |        ~~~~~~~~~~^~~~~~~~~~
In file included from /usr/include/c++/10/vector:72,
                 from recursgauche.cpp:2:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: ‘std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >]’
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from ‘std::__cxx11::basic_string<char>’ to ‘const std::vector<std::__cxx11::basic_string<char> >&’
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from recursgauche.cpp:2:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: ‘std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >]’
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from ‘std::__cxx11::basic_string<char>’ to ‘std::vector<std::__cxx11::basic_string<char> >&&’
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: ‘std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >]’
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from ‘std::__cxx11::basic_string<char>’ to ‘std::initializer_list<std::__cxx11::basic_string<char> >’
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
quelqu'un a une idée?