Compilare: main.cpp: In function 'int main()': main.cpp:62:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 62 | for(auto e : s) cout << e << " "; cout << '\n'; | ^~~ main.cpp:22:14: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 22 | #define cout out | ^~~ main.cpp:62:39: note: in expansion of macro 'cout' 62 | for(auto e : s) cout << e << " "; cout << '\n'; | ^~~~ In file included from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/c++allocator.h:33, from /usr/include/c++/12.2.1/bits/allocator.h:46, from /usr/include/c++/12.2.1/string:41, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/istream:38, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:3: In member function 'void std::__new_allocator<_Tp>::deallocate(_Tp*, size_type) [with _Tp = __gnu_cxx::_Rope_RopeConcatenation<int, std::allocator<int> >]', inlined from 'constexpr void std::allocator< <template-parameter-1-1> >::deallocate(_Tp*, std::size_t) [with _Tp = __gnu_cxx::_Rope_RopeConcatenation<int, std::allocator<int> >]' at /usr/include/c++/12.2.1/bits/allocator.h:200:35, inlined from 'static void __gnu_cxx::_Rope_base<_CharT, _Alloc>::_C_deallocate(__C*, std::size_t) [with _CharT = int; _Alloc = std::allocator<int>]' at /usr/include/c++/12.2.1/ext/rope:1528:7, inlined from 'static __gnu_cxx::rope<_CharT, _Alloc>::_RopeRep* __gnu_cxx::rope<_CharT, _Alloc>::_S_tree_concat(_RopeRep*, _RopeRep*) [with _CharT = int; _Alloc = std::allocator<int>]' at /usr/include/c++/12.2.1/ext/ropeimpl.h:511:27: /usr/include/c++/12.2.1/bits/new_allocator.h:158:33: warning: 'void operator delete(void*, std::size_t)' called on unallocated object 'buf' [-Wfree-nonheap-object] 158 | _GLIBCXX_OPERATOR_DELETE(_GLIBCXX_SIZED_DEALLOC(__p, __n)); | ^ main.cpp: In static member function 'static __gnu_cxx::rope<_CharT, _Alloc>::_RopeRep* __gnu_cxx::rope<_CharT, _Alloc>::_S_tree_concat(_RopeRep*, _RopeRep*) [with _CharT = int; _Alloc = std::allocator<int>]': main.cpp:10:13: note: declared here 10 | static char buf[48 << 20]; | ^~~ In member function 'void std::__new_allocator<_Tp>::deallocate(_Tp*, size_type) [with _Tp = int]', inlined from 'constexpr void std::allocator< <template-parameter-1-1> >::deallocate(_Tp*, std::size_t) [with _Tp = int]' at /usr/include/c++/12.2.1/bits/allocator.h:200:35, inlined from 'static void __gnu_cxx::_Rope_RopeRep<_CharT, _Alloc>::_S_free_string(_CharT*, std::size_t, allocator_type&) [with _CharT = int; _Alloc = std::allocator<int>]' at /usr/include/c++/12.2.1/ext/ropeimpl.h:356:21, inlined from 'static __gnu_cxx::rope<_CharT, _Alloc>::_RopeRep* __gnu_cxx::rope<_CharT, _Alloc>::_S_substring(_RopeRep*, std::size_t, std::size_t) [with _CharT = int; _Alloc = std::allocator<int>]' at /usr/include/c++/12.2.1/ext/ropeimpl.h:821:13: /usr/include/c++/12.2.1/bits/new_allocator.h:158:33: warning: 'void operator delete(void*, std::size_t)' called on unallocated object 'buf' [-Wfree-nonheap-object] 158 | _GLIBCXX_OPERATOR_DELETE(_GLIBCXX_SIZED_DEALLOC(__p, __n)); | ^ main.cpp: In static member function 'static __gnu_cxx::rope<_CharT, _Alloc>::_RopeRep* __gnu_cxx::rope<_CharT, _Alloc>::_S_substring(_RopeRep*, std::size_t, std::size_t) [with _CharT = int; _Alloc = std::allocator<int>]': main.cpp:10:13: note: declared here 10 | static char buf[48 << 20]; | ^~~