问题
Could you please make it clear what the difference is between unsigned and unsigned int? Maybe some example code would be helpful.
回答1:
unsigned is a modifier which can apply to any integral type (char, short, int, long, etc.) but on its own it is identical to unsigned int.
回答2:
There is no difference. unsigned and unsigned int are both synonyms for the same type (the unsigned version of the int type).
回答3:
unsigned alone means unsigned int. You can also use unsigned char, etc. I have no idea what happens if you try unsigned double or unsigned float. Anybody know?
回答4:
unsigned indicates that it's unsigned int. So they are equivalent.
回答5:
They are exactly the same thing.
来源：https://stackoverflow.com/questions/7176657/difference-between-unsigned-and-unsigned-int-in-c