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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-5684] Possible number truncation in query.cpp?</title>
                <link>https://jira.mongodb.org/browse/SERVER-5684</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Code snippet below is from queryWithQueryOptimizer @ ops/query.cpp and it tries to cast long long to int and assign it to a long long:&lt;/p&gt;

&lt;p/&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;  curop.debug().nscanned = (int)( cursor ? cursor-&amp;gt;nscanned() : 0 );  // &amp;lt;-- why is there a cast?&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;  curop.debug().ntoskip = pq.getSkip();&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="36957">SERVER-5684</key>
            <summary>Possible number truncation in query.cpp?</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Mon, 23 Apr 2012 14:34:05 +0000</created>
                <updated>Mon, 11 Jul 2016 18:34:53 +0000</updated>
                            <resolved>Mon, 30 Apr 2012 16:41:21 +0000</resolved>
                                    <version>2.1.0</version>
                                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="114884" author="auto" created="Mon, 30 Apr 2012 16:34:09 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;amcfague&apos;, u&apos;name&apos;: u&apos;Andrew McFague&apos;, u&apos;email&apos;: u&apos;redmumba@gmail.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5684&quot; title=&quot;Possible number truncation in query.cpp?&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-5684&quot;&gt;&lt;del&gt;SERVER-5684&lt;/del&gt;&lt;/a&gt;: Removing unnecessary cast from profiling code.&lt;/p&gt;

&lt;p&gt;Since curop.debug().nscanned is a `long long`, and the return of the&lt;br/&gt;
`nscanned()` function is also a `long long`, casting is unnecessary here&lt;br/&gt;
as the false value `0` will correctly be coerced to a `long long`.&lt;br/&gt;
However, to improve readability, I have specifically marked the 0&lt;br/&gt;
constant as `0LL`.&lt;/p&gt;

&lt;p&gt;Signed-off-by: Randolph Tan &amp;lt;randolph@10gen.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/100b489788f4c335e6df88606804c589f7cd6a5b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/100b489788f4c335e6df88606804c589f7cd6a5b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="114740" author="amcfague" created="Mon, 30 Apr 2012 07:04:30 +0000"  >&lt;p&gt;Sounds like something left from when it was actually an integer; that&apos;s the only logic I can see.  I have updated to (a) remove the cast, and (b) correctly identify the constant `0` as a `long long` (even though this will be correct cast normally).&lt;/p&gt;

&lt;p&gt;Submitted a pull request here: &lt;a href=&quot;https://github.com/mongodb/mongo/pull/218&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/pull/218&lt;/a&gt;&lt;/p&gt;</comment>
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