Question

How to right shift negative number in C

Answer 1

#include <stdio.h>

void print_bits(unsigned int n) { 
    int bit;
    for (int i = 31; i >= 0; i--) {
        bit = n >> i;
        if (bit & 1) {
            printf("1");
        }
        else {
            printf("0");
        }
    }
    printf("\n");
}

int main()
{
    int n = -0xFF;
    
    print_bits(n);
    
    n = n >> 1;
    
    print_bits(n);

    return 0;
}
  
   
   
/*
run:
  
11111111111111111111111100000001
11111111111111111111111110000000
   
*/

 

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