【C語言】左移&右移巨集

恩...就左移與右移巨集函數

#include <stdio.h>

#define ROTATE_LEFT(NUM,BIT) (  \
            (NUM<<BIT) | (NUM>>( (sizeof(unsigned)<<3)-BIT) )  \
        )

#define ROTATE_RIGHT(NUM,BIT) ( \
            (NUM>>BIT) | (NUM<<( (sizeof(unsigned)<<3)-BIT) )  \
        )

int main() {
   unsigned int x = 0xff000000 ;
   printf("0x%8X\t0x%08X\n", x, ROTATE_RIGHT(x,4)) ;
   printf("0x%8X\t0x%08X\n", x, ROTATE_LEFT(x,4)) ;
   system("pause") ;
   return 0 ;
}