Eroare de compilare: user.cpp:2:1: error: expected unqualified-id before numeric constant 1 ^ In file included from /usr/include/c++/5/bits/move.h:57:0, from /usr/include/c++/5/bits/stl_pair.h:59, from /usr/include/c++/5/utility:70, from /usr/include/c++/5/unordered_map:38, from user.cpp:84: /usr/include/c++/5/type_traits:326:31: error: ‘std::size_t’ has not been declared template<typename _Tp, std::size_t _Size> ^ /usr/include/c++/5/type_traits:525:37: error: ‘nullptr_t’ is not a member of ‘std’ struct __is_null_pointer_helper<std::nullptr_t> ^ /usr/include/c++/5/type_traits:525:37: error: ‘nullptr_t’ is not a member of ‘std’ /usr/include/c++/5/type_traits:525:51: error: template argument 1 is invalid struct __is_null_pointer_helper<std::nullptr_t> ^ /usr/include/c++/5/type_traits:1411:32: error: ‘size_t’ is not a member of ‘std’ : public integral_constant<std::size_t, __alignof__(_Tp)> { }; ^ /usr/include/c++/5/type_traits:1411:32: error: ‘size_t’ is not a member of ‘std’ /usr/include/c++/5/type_traits:1411:61: error: template argument 1 is invalid : public integral_constant<std::size_t, __alignof__(_Tp)> { }; ^ /usr/include/c++/5/type_traits:1411:61: note: invalid template non-type parameter /usr/include/c++/5/type_traits:1416:32: error: ‘size_t’ is not a member of ‘std’ : public integral_constant<std::size_t, 0> { }; ^ /usr/include/c++/5/type_traits:1416:32: error: ‘size_t’ is not a member of ‘std’ /usr/include/c++/5/type_traits:1416:46: error: template argument 1 is invalid : public integral_constant<std::size_t, 0> { }; ^ /usr/include/c++/5/type_traits:1416:46: note: invalid template non-type parameter /usr/include/c++/5/type_traits:1418:31: error: ‘std::size_t’ has not been declared template<typename _Tp, std::size_t _Size> ^ /usr/include/c++/5/type_traits:1420:32: error: ‘size_t’ is not a member of ‘std’ : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { }; ^ /usr/include/c++/5/type_traits:1420:32: error: ‘size_t’ is not a member of ‘std’ /usr/include/c++/5/type_traits:1420:65: error: template argument 1 is invalid : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { }; ^ /usr/include/c++/5/type_traits:1420:65: note: invalid template non-type parameter /usr/include/c++/5/type_traits:1424:32: error: ‘size_t’ is not a member of ‘std’ : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { }; ^ /usr/include/c++/5/type_traits:1424:32: error: ‘size_t’ is not a member of ‘std’ /usr/include/c++/5/type_traits:1424:65: error: template argument 1 is invalid