Make array of bools out of Ruby integer bits
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Okay, so I was wondering if I could create an array of Boolean values from an integer by using its bits. For example, if I wanted to use 5, which is 101 in binary, is there any reasonably easy way that I could get this in something of the form:
[true, false, true]This would work:
num = 5(0...num.bit_length).map { |i| num[i] == 1 }#=> [true, false, true]or
(0...num.bit_length).map { |i| num[i] == 1 }.reverse#=> [true, false, true]depending on the desired bit order.
Try this:
x = 5.to_s(2).split(//).collect do |n| n == "1"endp x
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