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`flsgn` inconsistency for `-0.0` and `+nan.0` #95

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LiberalArtist opened this issue Oct 20, 2024 · 0 comments

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LiberalArtist commented Oct 20, 2024

The docs claim that flsgn is “like sgn … but restricted to flonum input.” However, the two functions behave differently for -0.0 and +nan.0:

#lang racket
(require math/flonum)

(flsgn -0.0);-> 0.0
(sgn -0.0)  ;-> -0.0

(flsgn +nan.0);-> 0.0
(sgn +nan.0)  ;-> +nan.0

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