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    <title>MongoDB Jira</title>
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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-3682] v1 index equality comparison does not compare positive and negative zero as equal</title>
                <link>https://jira.mongodb.org/browse/SERVER-3682</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We just check equality of doubles using their bits, but +/- 0 have different bit representations and should compare equal.&lt;/p&gt;

&lt;p&gt;            case coid:&lt;br/&gt;
                if( &lt;b&gt;((unsigned&lt;/b&gt;) l) != &lt;b&gt;((unsigned&lt;/b&gt;) r) )&lt;br/&gt;
                    return false;&lt;br/&gt;
                l += 4; r += 4;&lt;br/&gt;
            case cdate:&lt;br/&gt;
            case cdouble:&lt;br/&gt;
                if( *((unsigned long long *) l) != *((unsigned long long *) r) )&lt;br/&gt;
                    return false;&lt;br/&gt;
                l += 8; r += 8;&lt;br/&gt;
                break;&lt;/p&gt;


&lt;p&gt;I wrote a test, will push it once buildbot is working.&lt;/p&gt;</description>
                <environment></environment>
        <key id="21460">SERVER-3682</key>
            <summary>v1 index equality comparison does not compare positive and negative zero as equal</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="eliot">Eliot Horowitz</assignee>
                                    <reporter username="aaron">Aaron Staple</reporter>
                        <labels>
                    </labels>
                <created>Wed, 24 Aug 2011 02:52:48 +0000</created>
                <updated>Mon, 11 Jul 2016 18:34:22 +0000</updated>
                            <resolved>Mon, 29 Aug 2011 15:41:43 +0000</resolved>
                                                    <fixVersion>2.0.0-rc1</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="51203" author="auto" created="Mon, 29 Aug 2011 15:41:43 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: fix double comparision of -0 and 0 for v1 indexes &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3682&quot; title=&quot;v1 index equality comparison does not compare positive and negative zero as equal&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3682&quot;&gt;&lt;del&gt;SERVER-3682&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cbba880bd437449490c70dc4c4c00d6aa2930c24&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cbba880bd437449490c70dc4c4c00d6aa2930c24&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="50361" author="auto" created="Wed, 24 Aug 2011 03:04:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;astaple&apos;, u&apos;name&apos;: u&apos;Aaron&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3682&quot; title=&quot;v1 index equality comparison does not compare positive and negative zero as equal&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3682&quot;&gt;&lt;del&gt;SERVER-3682&lt;/del&gt;&lt;/a&gt; test&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cad7aba1d3e336654e86eb5001d1667cde022b10&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cad7aba1d3e336654e86eb5001d1667cde022b10&lt;/a&gt;&lt;/p&gt;</comment>
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