Allow digits=0 in BigDecimal(flt) and Float#to_d #180
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Using dtoa of mode=0, we can determine the number of digits in decimal that is necessary to represent the given Float number without errors. This change permits digits=0 in BigDecimal(flt) and Float#to_d, and these methods use dtoa of mode=0 when the given digits is 0. Internal implicit conversion from Float also uses digits=0. [Fix GH-70]
This was referenced Jan 13, 2021
This was referenced May 2, 2021
yahonda
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To prepare Ruby 3.4 will ship `bigdecimal` as bundled gem, `bigdecimal` has been added to Active Support runtime dependency via rails#49039 It will install BigDecimal version 3.1.4 or higher, so we just check the BigDecimal 3.1+ behavior at `NumericalityValidationTest`. Refer to rails#49039 ruby/bigdecimal#180 ruby/bigdecimal#70
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Using dtoa of mode=0, we can determine the number of digits in decimal that is
necessary to represent the given Float number without errors.
This change permits digits=0 in BigDecimal(flt) and Float#to_d, and these
methods use dtoa of mode=0 when the given digits is 0.
Internal implicit conversion from Float also uses digits=0.
[Fix GH-70]