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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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>[CXX-1730] &apos;operator =&apos; is ambiguous in gridfs/downloader.cpp</title>
                <link>https://jira.mongodb.org/browse/CXX-1730</link>
                <project id="11980" key="CXX">C++ Driver</project>
                    <description>&lt;p&gt;I feel like I might be doing something wrong as this part of the code has not been touched for the past 2 years according to GitHub and Windows is probably a well supported platform... But when I&#160;tried it on both mongo cxx 3.3.1 and 3.4.0, I&apos;m getting the following when I run MSBuild:&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://jira.mongodb.org/secure/attachment/208265/208265_image-2019-02-06-15-35-52-788.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;This is what intellisense is saying:&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://jira.mongodb.org/secure/attachment/208266/208266_image-2019-02-06-15-32-32-630.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;I got the type by looking at the type definition and modified to this and it compiles:&lt;/p&gt;

&lt;p&gt;_get_impl().chunks = stdx::optional&amp;lt;cursor&amp;gt;();&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Am I doing something wrong? Would this be a valid temporary workaround?&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment>Windows MSVC 14 64bit (Visual Studio 2015)</environment>
        <key id="684735">CXX-1730</key>
            <summary>&apos;operator =&apos; is ambiguous in gridfs/downloader.cpp</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="13202">Works as Designed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="carmenfan">Carmen Fan</reporter>
                        <labels>
                    </labels>
                <created>Wed, 6 Feb 2019 15:39:56 +0000</created>
                <updated>Fri, 27 Oct 2023 13:13:38 +0000</updated>
                            <resolved>Wed, 6 Feb 2019 19:05:45 +0000</resolved>
                                    <version>3.3.1</version>
                    <version>3.4.0</version>
                                                    <component>Build</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2140184" author="kevin.albertson" created="Wed, 6 Feb 2019 19:05:45 +0000"  >&lt;p&gt;Great to hear! Closing.&lt;/p&gt;</comment>
                            <comment id="2139702" author="carmenfan" created="Wed, 6 Feb 2019 16:53:50 +0000"  >&lt;p&gt;Hi Kevin,&lt;/p&gt;

&lt;p&gt;Thanks for your quick response!&lt;/p&gt;

&lt;p&gt;I figured out what this is thanks to your info on integration test. I am using Boost 1.59 on my machine.&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;I have just downloaded a copy of Boost 1.60 and it compiles.&lt;/p&gt;</comment>
                            <comment id="2139639" author="kevin.albertson" created="Wed, 6 Feb 2019 16:17:07 +0000"  >&lt;p&gt;Hi Carmen,&lt;/p&gt;

&lt;p&gt;Thank you for the detailed report!&lt;/p&gt;

&lt;p&gt;We have continuous integration tests with VS 2015 on Windows using the Boost polyfill (version 1.60), so I&apos;m unsure why those tests did not catch this. If possible, could you include the full output of the cmake command you used to configure the C++ driver.&lt;/p&gt;

&lt;p&gt;Thank you,&lt;br/&gt;
Kevin&lt;/p&gt;
</comment>
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                            <attachment id="208266" name="image-2019-02-06-15-32-32-630.png" size="31822" author="carmenfan" created="Wed, 6 Feb 2019 15:32:35 +0000"/>
                            <attachment id="208265" name="image-2019-02-06-15-35-52-788.png" size="39960" author="carmenfan" created="Wed, 6 Feb 2019 15:35:55 +0000"/>
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