Question

How to print the bits of a 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 argc, char **argv) 
{
	int n = 1358; 
	
	print_bits(n);

	return 0; 
}
    
      
/*
run:
    
00000000000000000000010101001110
 
*/

 

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Answer 2

void print_bits(unsigned int n) { 
    for (int i = 31; i >= 0; i--)
       printf("%d", (n >> i) & 1);
	printf("\n");
}

int main(int argc, char **argv) 
{
	int n = 1358; 
	
	print_bits(n);

	return 0; 
}
    
      
/*
run:
    
00000000000000000000010101001110
 
*/

 

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Answer 3

#include <stdio.h>

void print_bits(unsigned int n) { 
    if (n > 1) 
        print_bits(n>>1); 
       
    printf("%d", (n & 1));
}
 
int main(int argc, char **argv) 
{
    int n = 1358; 
     
    print_bits(n);
 
    return 0; 
}
     
       
/*
run:

10101001110
  
*/

 

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