Unsigned becomes long, short, and the value may be out of bounds, so you will get incorrect results and need to be careful.

Just as bivariate int values may be out of bounds, they need to be handled with care.

Unsigned long integer a = 0xa900

Dragon b;

Short c;

B = (long) a;

printf("%d\n "，b)；

C = (short) a;

printf("%d\n "，c)；