|
Count bits set
Returns the amount of bits in the bitset that are set (i.e., have a value of 1).
Parameters
none
Return value
The number of bits set.
size_t is an unsigned integral type.
Example
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
// bitset::count
#include <iostream>
#include <string>
#include <bitset>
using namespace std;
int main ()
{
bitset<8> myset (string("10110011"));
cout << "myset has " << int(myset.count()) << " ones ";
cout << "and " << int(myset.size()-myset.count()) << " zeros.\n";
return 0;
}
|
Output:
myset has 5 ones, and 3 zeros. |
See also
| bitset::any | Test if any bit is set (public member function) |
|