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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-57713] Teach unittest macros to usefully compare with nullptr</title>
                <link>https://jira.mongodb.org/browse/SERVER-57713</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Sometimes in unittests, you&apos;d like to check that a pointer is nullptr.&lt;/p&gt;

&lt;p&gt;You can&apos;t use the comparison macros like: ASSERT_EQ(ptr, nullptr) because none of the overloads satisfy: we can&apos;t use the one made for pointers &lt;a href=&quot;https://github.com/mongodb/mongo/blob/80fad147597bf47f77980ced8f3dbbc937d95435/src/mongo/unittest/unittest.h#L754&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt; because nullptr is not a pointer according to std::is_pointer, and we can&apos;t use the generic one because the actual ptr &lt;em&gt;is&lt;/em&gt; a pointer according to std::is_pointer. &lt;/p&gt;

&lt;p&gt;You could just use ASSERT_FALSE(ptr), but this has limited utility, because on failure it will just print &quot;Expected: !(ptr)&quot; rather than the actual value of the pointer. But when we see this message in logs in a hard-to-repro failure, it would be useful to see the actual value (is the pointer corrupted? or is it just set to something when it shouldn&apos;t be?)&lt;/p&gt;</description>
                <environment></environment>
        <key id="1782715">SERVER-57713</key>
            <summary>Teach unittest macros to usefully compare with nullptr</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-servicearch">Backlog - Service Architecture</assignee>
                                    <reporter username="george.wangensteen@mongodb.com">George Wangensteen</reporter>
                        <labels>
                            <label>sa-remove-fv-backlog-22</label>
                    </labels>
                <created>Tue, 15 Jun 2021 17:02:46 +0000</created>
                <updated>Tue, 6 Dec 2022 01:13:50 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3881818" author="daniel.gottlieb@10gen.com" created="Wed, 16 Jun 2021 17:15:53 +0000"  >&lt;p&gt;Ah that makes sense, thanks. I think this is a worthwhile change.&lt;/p&gt;</comment>
                            <comment id="3881126" author="george.wangensteen" created="Wed, 16 Jun 2021 14:10:22 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=daniel.gottlieb&quot; class=&quot;user-hover&quot; rel=&quot;daniel.gottlieb&quot;&gt;daniel.gottlieb&lt;/a&gt; I didn&apos;t have a BF in mind when I filed this; I was just writing unittests and after grepping around to see how we ordinarily check for nullptr and after chatting with Billy about it thought that the current situation is less-than-ideal/life might be easier if we could just use ASSERT_EQ or at least see the value of the pointer. But, if I find a BF or local failure demonstrating this, I&apos;ll link it&lt;/p&gt;</comment>
                            <comment id="3881096" author="daniel.gottlieb@10gen.com" created="Wed, 16 Jun 2021 13:59:48 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=george.wangensteen&quot; class=&quot;user-hover&quot; rel=&quot;george.wangensteen&quot;&gt;george.wangensteen&lt;/a&gt; is there a BF ticket this can be linked to? I&apos;m interested in taking a quick peek to see what else we might be able to glean without a whole coredump at our disposal.&lt;/p&gt;</comment>
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