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Incorrect calculation result after upgrading from BigDecimal 3.1.1 to 3.1.2 #271

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d4rky-pl opened this issue Oct 5, 2023 · 1 comment
Open

Incorrect calculation result after upgrading from BigDecimal 3.1.1 to 3.1.2 #271

d4rky-pl opened this issue Oct 5, 2023 · 1 comment

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@d4rky-pl
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d4rky-pl commented Oct 5, 2023 •
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Reproduction script

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  gem 'bigdecimal', '3.1.1'
end

a = BigDecimal(1) - BigDecimal(1000) / BigDecimal(1100)
b = BigDecimal(2000) / (BigDecimal(1) - a)

p b

Result for 3.1.1: 0.22e4 (correct)
Result for 3.1.2: 0.219999999999999999999999999999999999978e4 (incorrect)
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@d4rky-pl @broksonic21