각 변수의 주소를 담는 포인터변수
char *p → char ** tptr
char p[10] → char (*tptr)[10]
char **p → char *** tptr
char *p[10] → char *(*tptr)[10]
char (*p)[10] → char (**tptr)[10]
char **p[10] → char **(*tptr)[10]
char ***p; → char ****tptr;
char (**p)[10] → char (***tptr)[10]