Count set bits in an integer c++

//Method 1
	int count = __builtin_popcount(number);
//Method 2
	int count = 0;
    while (number) {
        count += number & 1;
        n >>= 1;
    }

Bit counting

countBits = (n) => n.toString(2).split("0").join("").length;

Count bits c++

//Method 1
   int count = 0;
   while (n)
   {
        count++;
        n >>= 1;
    }
//Method 2
	int count = (int)log2(number)+1;

Similar codes

3 votes131 views2 answers
Console colors in C++
C++
3 votes85 views2 answers
C++ read text file
C++
0 vote145 views1 answer
Yearly interest calculator c++ using for loop
C++
4 votes128 views6 answers
C++ length of char array
C++
0 vote139 views1 answer
Get elements of 2d array c++
C++
1 vote129 views1 answer
Meter espacios en cadena c
C++
481 votes267 views10 answers
December global holidays
C++
0 vote172 views1 answer
Passing custom function in sort cpp
C++
0 vote157 views1 answer
C++ loop trhought object
C++
0 vote102 views1 answer
How to shorten code using using c++ in class with typename
C++