aboutsummaryrefslogblamecommitdiff
path: root/2.9.c
blob: 5a0ceb99000f0e4295dcb238e4fe006ab387ad90 (plain) (tree) 
c24973a























1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23























                                          
#include <stdio.h>

int bitcount(unsigned num);

int 
main(void)
{
  int x = 1337; /* a random int */
  printf("%d\n", bitcount(x));;

  return 0;
}

int 
bitcount(unsigned num)
{
  int bits;

  for (bits = 0; num != 0; num &= (num-1))
    bits++;

  return bits;
}