1 void double_declarator1(int *_Nonnull *); // expected-warning{{pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified)}} 2 // expected-note@-1 {{insert '_Nullable' if the pointer may be null}} 3 // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}} 4