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Add: T/isPowerOf2 #109

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oscbyspro opened this issue Oct 4, 2024 · 1 comment
Open

Add: T/isPowerOf2 #109

oscbyspro opened this issue Oct 4, 2024 · 1 comment
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addition oh, so shiny! brrr such code, much wow documentation scribbles n' doodles!
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Ultimathnum 0.12.0

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@oscbyspro
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The following models can and/or should implement isPowerOf2.

  • BinaryInteger
  • Count
  • DataInt
  • DataInt.Body
  • MutableDataInt
  • MutableDataInt.Body
  • Shift

I want at least Count/isPowerOf2 for documentation purposes.
@oscbyspro oscbyspro added addition oh, so shiny! brrr such code, much wow labels Oct 4, 2024
@oscbyspro
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oscbyspro commented Oct 4, 2024 •
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Also, this expression is faster than bit-counting (for small systems integers):

(x > 0) && (x & (x &- 1) == 0)

@oscbyspro oscbyspro added the documentation scribbles n' doodles! label Oct 4, 2024
@oscbyspro oscbyspro added this to the Ultimathnum 0.11.0 milestone Oct 4, 2024
oscbyspro added a commit that referenced this issue Oct 11, 2024
@oscbyspro
Add: Count/isPowerOf2 (#109).
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addition oh, so shiny! brrr such code, much wow documentation scribbles n' doodles!
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