/in/foo.cc: In function 'int main()':
/in/foo.cc:6:11: warning: '((__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type*)((char*)&s + offsetof(std::__cxx11::string, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::<unnamed>)))[1]' is used uninitialized [-Wuninitialized]
    6 | int x=s[0]+s[1]+s[2]-48*3;
/in/foo.cc:5:16: note: 's' declared here
    5 |         string s;
      |                ^
/in/foo.cc:6:16: warning: '((__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type*)((char*)&s + offsetof(std::__cxx11::string, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::<unnamed>)))[2]' is used uninitialized [-Wuninitialized]
    6 | int x=s[0]+s[1]+s[2]-48*3;
/in/foo.cc:5:16: note: 's' declared here
    5 |         string s;
      |                ^