POPCNT returns a FIXED BIN value holding in each byte the number of bits equal to 1 in the corresponding byte of x.
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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:
On z/OS, the POPCNT(x) built-in function requires an ARCH level of 9 or higher.