Unsigned short sem_num; (semaphore number).

unsigned short sem_num；(信号量个数)。

If you must multiply, cast to an unsigned short before multiplying.

如果一定要计算乘法，可以在计算乘法之前转换为unsigned short。

This is true for unsigned short, unsigned long, and unsigned long long.

对于 unsigned short , unsigned long , 以及 unsigned long long 来说也是这样。

For example, suppose we have an unsigned short returning from an IDL interface. The range of this type will be from 0 to 65535.

例如，假设有一个从IDL接口返回的unsigned short类型值，这一类型的取值范围是0到65535。

C-89 data types (include signed and unsigned) short, int, long, long long, float, and double.

C - 89数据类型(包括有符号和无符号)short、int、long、long long、float和double。