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integer round function macro

/ Published in: C++
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  1. #include "math.h"
  2.  
  3. #define round(x) (x<0?ceil((x)-0.5):floor((x)+0.5))
  4. //or
  5. #define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))

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