JDK-4826732 : Add ulp method for floating-point value
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.lang
  • Affected Version: 5.0
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2003-03-04
  • Updated: 2017-05-16
  • Resolved: 2003-05-16
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Other
5.0 tigerFixed
Related Reports
Relates :  
JDK-4455590 - JavaDoc: comments for Math, StrictMath don't provide enough detail
Relates :  
JDK-4406429 - RFE: Add IEEE 754 Recommended Functions to Math, StrictMath
Relates :  
JDK-4893344 - Regression tests for java.lang.Math would benefit from minor refactoring
Description
The specification for java.lang.Math talks about the accuracy of the methods there in terms of ulps (units in the last place).  Ulps are a common way of describing relative error in floating-point functions.  However, none of the Math, StrictMath, Float, and Double classes include methods in calculate the ulp of a floating-point value.
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: tiger FIXED IN: tiger INTEGRATED IN: tiger tiger-b07
14-06-2004
SUGGESTED FIX See code diffs in bug 4074599 or 4347132. ###@###.### 2003-05-09
09-05-2003
EVALUATION A fine idea. ###@###.### 2003-03-03
03-03-2003