[ https://issues.apache.org/jira/browse/NUMBERS-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16758698#comment-16758698 ]
Gilles commented on NUMBERS-90: ------------------------------- Fine; I should not prevent progress without proposing an alternative. :-} > DoublePrecisionContext > ---------------------- > > Key: NUMBERS-90 > URL: https://issues.apache.org/jira/browse/NUMBERS-90 > Project: Commons Numbers > Issue Type: New Feature > Reporter: Matt Juntunen > Priority: Blocker > Time Spent: 0.5h > Remaining Estimate: 0h > > We should add a new class to commons-numbers-core that encapsulates > configurable strategies for comparing doubles. This is required for > GEOMETRY-11. Here is what I'm picturing: > {code:java} > // abstract class for the general concept of comparisons > public abstract class DoublePrecisionContext implements Comparator<Double> { > public abstract boolean equals(double a, double b); > public int compare(double a, double b) { /* ... */ } > public int compare(Double a, Double b) { /* ... */ } > } > // ... > // concrete class implementing a specific strategy > public class EpsilonUlpDoublePrecisionContext extends DoublePrecisionContext { > public EpsilonUlpDoublePrecisionContext(double eps, double maxUlps) { /* > ... */ } > @Override > public boolean equals(double a, double b) { /* ... */ } > } {code} > Pull request: https://github.com/apache/commons-numbers/pull/28 -- This message was sent by Atlassian JIRA (v7.6.3#76005)