int main(void)
{
int ret;
int i,sum=0;
printf("demo count bit 1 \n");
// ret = count_bit_1(0x64);
for(i = 1; i <= 100; i++)
{
ret = count_bit_1(i);
sum += ret;
}
//result = 3(0x64 = 0110 0100)
printf("100 has %d bit 1\n",sum);
}
int main(void)
{
printf("%d has <%d> \'1\'\n", N, count_bit_1(N));
return 0;
}