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Rounding modes #19

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littledan opened this issue Nov 13, 2019 · 1 comment
Open

Rounding modes #19

littledan opened this issue Nov 13, 2019 · 1 comment

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@littledan
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How should rounding modes be represented in BigDecimal? Some options:

  • Just do not support them, as bdldfp does
  • Pass them in as a parameter to certain methods that do arithmetic operations, as Java BigDecimal does
  • Global flag??? No, not consistent with how primitives work.
@littledan
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I think we should support explicit rounding modes, at least in the .round() method. See also a discussion of rounding modes in Intl.NumberFormat v3. I think Decimal should match NumberFormat in the set of rounding modes and their semantics.

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@littledan