|Description:||Returns the number of 1 bits in an integer.|
|Class:||Elemental function; Generic|
|Arguments:||I must be of type integer.|
|Results:||The result type is
the same as I. The result value is the number of 1 bits in the binary
representation of the integer I.
The model for the interpretation of an integer value as a sequence of bits is shown in Section D.3.
If the value of I is B'0...00011010110', the value of POPCNT(I) is 5.