SYNOPSIS

int

count_bits

(

string str

)

DESCRIPTION

Count the number of set bits in bitstring str and return the number as result.

USAGE

Here’s a very simple example:

string s;

s = set_bit("", 3);
s = set_bit(s, 15);

count_bits(s) // returns 2

SEE ALSO

clear_bit(E), set_bit(E), test_bit(E), next_bit(E), last_bit(E), or_bits(E), xor_bits(E), invert_bits(E), copy_bits(E)