Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8205592

BigDecimal.doubleValue() is depressingly slow

    XMLWordPrintable

    Details

      Description

      A DESCRIPTION OF THE PROBLEM :
      I find the following slow path in BigDecimal:

              // Somewhat inefficient, but guaranteed to work.
              return Double.parseDouble(this.toString())

      Since JDK-7131192 : BigInteger.doubleValue() is depressingly slow
      is now available, something faster could be done.

      It suggest doing unscaledValue().doubleValue() * Math.exp(scale()*Math.log(10))


        Attachments

          Issue Links

            Activity

              People

              Assignee:
              bpb Brian Burkhalter
              Reporter:
              webbuggrp Webbug Group
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

                Dates

                Created:
                Updated: