-0.0 and 0.0 are no longer equivalent in OTP 27.0

[ed-flanagan]

In

riot_lor/lib/riot/util/varint/leb128.ex

Lines 108 to 110 in 2909ba3

	# NOTE: assume no distinction between 0 and -0
	# this may not be entirely correct
	def encode(0, _sign), do: <<0>>

we assume -0 is equivalent to 0.

OTP 27 will 0.0 will no longer be exactly equivalent to -0.0.¹²
The update is for floating point 0's, so this is likely moot. But just wanted to have an issue for when Elixir v1.17 is released and we can test OTP 27

Footnotes

1. https://www.erlang.org/patches/otp-27.0#OTP-27.0 ↩

2. https://erlangforums.com/t/in-erlang-otp-27-0-0-will-no-longer-be-exactly-equal-to-0-0/2586 ↩