Function to check number of bits set in a number

/* Untested! */

int total_bit_set(int number)

{

#define MAX_BIT_NUM 32 /* test for 32bit numbers */

#define MASK 0x01

int i = 0;

int total = 0;

for (i=0; i < MAX_BIT_NUM; ++i)

{

total = ( number & MASK ) ? total+1 : total ;

/* Right shift by 1 bit */

number = (number >> 1);

}

return total;

}