Compilare: user.c: In function ‘main’: user.c:11:9: warning: unused variable ‘len’ [-Wunused-variable] int i, len, filedim; ^ user.c:11:6: warning: unused variable ‘i’ [-Wunused-variable] int i, len, filedim; ^ user.c:10:17: warning: unused variable ‘p2’ [-Wunused-variable] char *p, *p1, *p2, *copyp, *wholefile; ^ user.c:10:12: warning: unused variable ‘p1’ [-Wunused-variable] char *p, *p1, *p2, *copyp, *wholefile; ^ user.c:10:8: warning: unused variable ‘p’ [-Wunused-variable] char *p, *p1, *p2, *copyp, *wholefile; ^