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#include <iostream>
#include <vector>
using namespace std;
 
int main()
{
    std::vector<int> v { 1, 2, 3, 4 };
    for (auto it = v.begin(); it != v.rbegin(); ++it)
        std::cout << *it << '\n';
}

prog.cpp: In function ‘int main()’:
prog.cpp:8:34: error: no match for ‘operator!=’ (operand types are ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ and ‘std::vector<int>::reverse_iterator {aka std::reverse_iterator<__gnu_cxx::__normal_iterator<int*, std::vector<int> > >}’)
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                  ^
prog.cpp:8:34: note: candidates are:
In file included from /usr/include/c++/4.8/iosfwd:40:0,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/postypes.h:221:5: note: template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
     operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^
/usr/include/c++/4.8/bits/postypes.h:221:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::fpos<_StateT>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_pair.h:227:5: 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/include/c++/4.8/bits/stl_pair.h:227:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::pair<_T1, _T2>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:303:5: note: template<class _Iterator> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator!=(const reverse_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:303:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:353:5: 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/include/c++/4.8/bits/stl_iterator.h:353:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1043:5: 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/include/c++/4.8/bits/stl_iterator.h:1043:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::move_iterator<_Iterator>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1049:5: note: template<class _Iterator> bool std::operator!=(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
     operator!=(const move_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1049:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::move_iterator<_Iterator>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/string:41:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:138:5: note: template<class _T1, class _T2> bool std::operator!=(const std::allocator<_CharT>&, const std::allocator<_T2>&)
     operator!=(const allocator<_T1>&, const allocator<_T2>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:138:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::allocator<_CharT>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/string:41:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:143:5: note: template<class _Tp> bool std::operator!=(const std::allocator<_CharT>&, const std::allocator<_CharT>&)
     operator!=(const allocator<_Tp>&, const allocator<_Tp>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:143:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::allocator<_CharT>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2532:5: 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/include/c++/4.8/bits/basic_string.h:2532:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::basic_string<_CharT, _Traits, _Alloc>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2544:5: 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/include/c++/4.8/bits/basic_string.h:2544:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   mismatched types ‘const _CharT*’ and ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2556:5: 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/include/c++/4.8/bits/basic_string.h:2556:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::basic_string<_CharT, _Traits, _Alloc>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/locale_facets.h:48:0,
                 from /usr/include/c++/4.8/bits/basic_ios.h:37,
                 from /usr/include/c++/4.8/ios:44,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/streambuf_iterator.h:210:5: note: 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,
     ^
/usr/include/c++/4.8/bits/streambuf_iterator.h:210:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/vector:64:0,
                 from prog.cpp:2:
/usr/include/c++/4.8/bits/stl_vector.h:1427:5: 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/include/c++/4.8/bits/stl_vector.h:1427:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const std::vector<_Tp, _Alloc>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33:0,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/ext/new_allocator.h:144:5: note: 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>&)
     ^
/usr/include/c++/4.8/ext/new_allocator.h:144:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘const __gnu_cxx::new_allocator<_Tp>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:823:5: note: 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,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:823:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘std::vector<int>::reverse_iterator {aka std::reverse_iterator<__gnu_cxx::__normal_iterator<int*, std::vector<int> > >}’ is not derived from ‘const __gnu_cxx::__normal_iterator<_Iterator, _Container>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:817:5: note: 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,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:817:5: note:   template argument deduction/substitution failed:
prog.cpp:8:46: note:   ‘std::vector<int>::reverse_iterator {aka std::reverse_iterator<__gnu_cxx::__normal_iterator<int*, std::vector<int> > >}’ is not derived from ‘const __gnu_cxx::__normal_iterator<_IteratorR, _Container>’
     for (auto it = v.begin(); it != v.rbegin(); ++it)
                                              ^

Standard output is empty