commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Henri Biestro (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (JEXL-242) invalid jexl calculation while doing sum for particular value
Date Fri, 27 Oct 2017 15:47:00 GMT

     [ https://issues.apache.org/jira/browse/JEXL-242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Henri Biestro resolved JEXL-242.
--------------------------------
    Resolution: Cannot Reproduce

Following code does not reproduce:
{code}

    @Test
    public void test242() throws Exception {
        Double a = -40.05d;
        Double b = -8.01d;
        Double c = a + b;
        final JexlContext context = new MapContext();
        context.set("a", a);
        context.set("b", b);
        JexlEngine JEXL_ENGINE = new JexlBuilder().strict(true).silent(true).create();
        JexlExpression jsp = JEXL_ENGINE.createExpression("a + b");
        Double e = (Double) jsp.evaluate(context);
        Assert.assertTrue(Double.doubleToLongBits(e) + " != " + Double.doubleToLongBits(c),
c.doubleValue() == e.doubleValue());
        Assert.assertTrue(Double.doubleToLongBits(e) + " != " + Double.doubleToLongBits(c),
a + b == e);
    }
{code}

> invalid jexl calculation while doing sum for particular value
> -------------------------------------------------------------
>
>                 Key: JEXL-242
>                 URL: https://issues.apache.org/jira/browse/JEXL-242
>             Project: Commons JEXL
>          Issue Type: Bug
>    Affects Versions: 3.1
>            Reporter: vikas garg
>            Assignee: Henri Biestro
>            Priority: Blocker
>
> For a particular value of 0.05 , jexl is returning value unxepectedly
> I have face an issue with following calcualtion:
> Double a = -40.05;
> Double b = -8.01;
> final JexlContext context = new MapContext();
> context.set("a",a);
> context.set("b",b);
> JexlEngine JEXL_ENGINE = new JexlBuilder().strict(true).silent(true).create();
> JexlExpression jsp = JEXL_ENGINE.createExpression("a+b");
> Double c = jsp.evaluate(context);
> The value returned by evaluation is -48.059999999999995 instead of -48.06
> There seems some precision issue in calculation



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message