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test: Test IEEE754 comparison for Inf, NaN and Zeroes #157

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okuoku opened this issue Jul 11, 2020 · 2 comments
Open

test: Test IEEE754 comparison for Inf, NaN and Zeroes #157

okuoku opened this issue Jul 11, 2020 · 2 comments

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@okuoku
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okuoku commented Jul 11, 2020 •
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ref: chibi-scheme issue 667

  • comparison test should cover: Flonum, Fixnum, Zeroes

Inf

  • Implementations must support both infinite objects (Plus and Minus)
  • +inf.0 > -inf.0

NaN

  • is an inexact number
  • in unordered for any given number arguments; any comparison, positive? and negative? must return #f if it included NaN as argument
  • (Yuni does not support rational nor complex numbers)

Zero

  • Plus zero and minus zero is optional; SIBR?
  • Plus Zero equals Minus Zero
  • (1.0 / +0) should be +inf.0 , (1.0 / -0) should be -inf.0
@okuoku
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okuoku commented Mar 15, 2021

xref: #163

@okuoku
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okuoku commented Aug 24, 2021

ref: shirok/Gauche@9a9b635

@okuoku okuoku mentioned this issue Jul 24, 2022
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