float_to_d_patch.rb

# frozen_string_literal: true
require "bigdecimal/util"

# Ref: https://github.com/ruby/ruby/commit/e1424c35012ccf1f3822c9046081b225aef4142e
# Ref: https://github.com/ruby/bigdecimal/issues/70
# Ruby 3.0 changed the default precision used when calling `Float#to_d` from 15 to 16.
# It causes a whole lot of issues. I'm trying to figure out what can be done about it
# but in the meantime the only solution I see is to revert it back to 2.x behavior.

if RUBY_VERSION >= "3.0"
  class Float
    def to_d(precision = Float::DIG)
      BigDecimal(self, precision)
    end
  end
end

Haha, I just had to write this myself, thank you for posting it. I work at a rails company now moving to ruby3.

I ended up stumbling here from rails/rails#42098 (comment)

I believe the issue still exists in ruby v3.1.2

thanks again @casperisfine

I believe the issue still exists in ruby v3.1.2

I don't think so, we were able to remove the patch when we upgraded to 3.1.