POPCNT returns a FIXED BIN value holding in each byte the number
of bits equal to 1 in the corresponding byte of x.
>>-POPCNT(x)---------------------------------------------------><
- x
- Expression.
x must have the attributes REAL FIXED BIN with a scale factor of zero.
The result has the same precision as x.
The result has the same (UN)SIGNED attribute as x.
See the following examples of using POPCNT:
- POPCNT( ‘01020304’xn ) returns ‘01010201’xn.
- POPCNT( ‘05060708’xn ) returns '02020301'xn.
- If x has the attributes FIXED BIN(31), ISRL(POPCNT(x)*’01010101’xn,24) returns the number of bits equal to 1 in x.
On z/OS, the POPCNT(x) built-in function requires an ARCH level of 9 or higher.