Question

How to set all even bits of a number to zero (0) in C

Answer 1

#include <stdio.h>
    
void print_bits(unsigned int n) { 
    int bit;
    for (int i = 7; i >= 0; i--) {
        bit = n >> i;
        if (bit & 1)
            printf("1");
        else
            printf("0");
    }
    printf("\n");
}
 
int main() 
{
    int n = 255;
       
    print_bits(n);
       
    n = n & 0xaaaaaaaa;
       
    print_bits(n);
       
    return 0;
}
  
  
   
/*
run:
   
11111111
10101010
   
*/

 

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