is_power_of_two

function of dascore.utils.misc

source

is_power_of_two(
    value: int ,
)-> ‘bool’

Return True when value is a positive power of two.

Powers of two have exactly one set bit in their binary representation. Subtracting one flips that bit and all lower bits, so value & (value - 1) is zero only when value had a single set bit. The value > 0 check excludes zero and negative values.

Parameters

Parameter	Description
value	The value to test.