typedef struct {
char cognome[30];
char nome[20];
int voto;
}alunno;
//option 1
typedef struct STRING{
char *str;
int length;
} STRING;
STRING var_name;
//option 2
struct STRING{
char *str;
int length;
};
struct STRING var_name;
struct structureName {
dataType member1;
dataType member2;
...
};