C语言的循环移位操作

#include<stdio.h>
#include<stdlib.h>

unsigned int Left_shift_loop(unsigned int input, int shift_num)
{
unsigned int temp_shift_num = (0X1 << (32-(shift_num%32))) -1;
unsigned int temp_input_low = (input &temp_shift_num)<<(shift_num%32);
unsigned int temp_input_hig = input >>(32-shift_num%32);
input = temp_input_low | temp_input_hig;
return input;
}

unsigned int Right_shift_loop(unsigned int input, int shift_num)
{
    unsigned int temp_shift_num = shift_num%32;
unsigned int temp_input_low = input >>temp_shift_num;
unsigned int temp_input_hig = (input&((0x1<<(temp_shift_num+1))- 1))<<(32-temp_shift_num);
input = temp_input_low | temp_input_hig;
return input;
}
int main()
{
       int a;
   unsigned b=0x1;
   unsigned result=0;
   for(a=0; a<64; a++)
   {
   printf("==========%d===============\n",a);
   result=Left_shift_loop(b,a);
   printf("num: %x shift_num:%d  result: %x\n",b,a,result);