Compilare: user.cpp: In function 'void t_add_word(char*)': user.cpp:60: warning: array subscript has type 'char' user.cpp:61: warning: array subscript has type 'char' user.cpp:66: warning: array subscript has type 'char' user.cpp: In function 'int process_character(int&, char)': user.cpp:162: warning: array subscript has type 'char' user.cpp:164: warning: array subscript has type 'char' user.cpp: In function 'int process_string()': user.cpp:174: warning: array subscript has type 'char' user.cpp:176: warning: array subscript has type 'char' user.cpp:170: warning: unused variable 'op' user.cpp: In function 'int main()': user.cpp:254: warning: array subscript has type 'char' user.cpp:256: warning: array subscript has type 'char' user.cpp:208: warning: unused variable 'j' user.cpp:208: warning: unused variable 'k' /tmp/cc3AhoDF.o: In function `main': user.cpp:(.text+0x810): warning: the `gets' function is dangerous and should not be used.