Eroare de compilare: user.c: In function ‘main’: user.c:14:20: warning: unused variable ‘i’ [-Wunused-variable] int nr_col = 0,i; ^ user.c: In function ‘get_column’: user.c:30:5: error: expected ‘;’ before ‘while’ while(fgets(line,BUFSIZE,file_json)) { ^ user.c:24:10: warning: unused variable ‘line’ [-Wunused-variable] char line[BUFSIZE],*sample; ^ user.c:23:17: warning: unused variable ‘ok’ [-Wunused-variable] int i,j = 0,ok = 0,aux; ^ user.c:23:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j = 0,ok = 0,aux; ^