IQMath.h头文件中
比如 #define _IQ24(A) ((I32_IQ) ((A) * 16777216u))
为什么不是 #define _IQ24(A) ((I32_IQ) ((A) <<24))?
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IQMath.h头文件中
比如 #define _IQ24(A) ((I32_IQ) ((A) * 16777216u))
为什么不是 #define _IQ24(A) ((I32_IQ) ((A) <<24))?