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  <title>Is the constructor call a prvalue and what&#39;s the type of it? · Issue #4837 · cplusplus/draft · GitHub</title>



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    <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path>
</svg>
</a></li>

                  </ul>
                </div>
                <div class="border-bottom border-lg-bottom-0 pb-lg-0 pb-3">

                      <span class="d-block h4 color-fg-default my-1" id="platform-integrations-heading">Integrations</span>

                  <ul class="list-style-none f5" aria-labelledby="platform-integrations-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;github_marketplace&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;github_marketplace_link_platform_navbar&quot;}" href="https://github.com/marketplace">
      GitHub Marketplace

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;mcp_registry&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;mcp_registry_link_platform_navbar&quot;}" href="https://github.com/mcp">
      MCP Registry

    
</a></li>

                  </ul>
                </div>
            </div>
        </div>

          <div class="HeaderMenu-trailing-link rounded-bottom-2 mt-lg-4 px-lg-4 py-4 py-lg-3 f5 text-semibold">
            <a data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;view_all_features&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;view_all_features_link_platform_navbar&quot;}" href="https://github.com/features">
              View all features
              <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-right HeaderMenu-trailing-link-icon">
    <path d="M6.22 3.22a.75.75 0 0 1 1.06 0l4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L9.94 8 6.22 4.28a.75.75 0 0 1 0-1.06Z"></path>
</svg>
</a>          </div>
      </div>
</li>


                <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item">
      <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false">
        Solutions
        <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1">
    <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path>
</svg>
      </button>

      <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 dropdown-menu-wide">
        <div class="d-lg-flex dropdown-menu-wide">
            <div class="HeaderMenu-column px-lg-4 pb-3 pb-lg-0 border-lg-right">
                <div class="border-bottom border-lg-bottom-0 pb-lg-0 pb-3">

                      <span class="d-block h4 color-fg-default my-1" id="solutions-by-company-size-heading">By company size</span>

                  <ul class="list-style-none f5" aria-labelledby="solutions-by-company-size-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;enterprises&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;enterprises_link_solutions_navbar&quot;}" href="https://github.com/enterprise">
      Enterprises

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;small_and_medium_teams&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;small_and_medium_teams_link_solutions_navbar&quot;}" href="https://github.com/team">
      Small and medium teams

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;startups&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;startups_link_solutions_navbar&quot;}" href="https://github.com/enterprise/startups">
      Startups

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;nonprofits&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;nonprofits_link_solutions_navbar&quot;}" href="/solutions/industry/nonprofits">
      Nonprofits

    
</a></li>

                  </ul>
                </div>
            </div>
            <div class="HeaderMenu-column px-lg-4 pb-3 pb-lg-0 border-lg-right">
                <div class="border-bottom border-lg-bottom-0 pb-lg-0 pb-3">

                      <span class="d-block h4 color-fg-default my-1" id="solutions-by-use-case-heading">By use case</span>

                  <ul class="list-style-none f5" aria-labelledby="solutions-by-use-case-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;app_modernization&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;app_modernization_link_solutions_navbar&quot;}" href="/solutions/use-case/app-modernization">
      App Modernization

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;devsecops&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;devsecops_link_solutions_navbar&quot;}" href="/solutions/use-case/devsecops">
      DevSecOps

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;devops&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;devops_link_solutions_navbar&quot;}" href="/solutions/use-case/devops">
      DevOps

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;ci_cd&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;ci_cd_link_solutions_navbar&quot;}" href="/solutions/use-case/ci-cd">
      CI/CD

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;view_all_use_cases&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;view_all_use_cases_link_solutions_navbar&quot;}" href="/solutions/use-case">
      View all use cases

    
</a></li>

                  </ul>
                </div>
            </div>
            <div class="HeaderMenu-column px-lg-4">
                <div class="border-bottom border-lg-bottom-0 pb-lg-0 pb-3">

                      <span class="d-block h4 color-fg-default my-1" id="solutions-by-industry-heading">By industry</span>

                  <ul class="list-style-none f5" aria-labelledby="solutions-by-industry-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;healthcare&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;healthcare_link_solutions_navbar&quot;}" href="/solutions/industry/healthcare">
      Healthcare

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;financial_services&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;financial_services_link_solutions_navbar&quot;}" href="/solutions/industry/financial-services">
      Financial services

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;manufacturing&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;manufacturing_link_solutions_navbar&quot;}" href="/solutions/industry/manufacturing">
      Manufacturing

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;government&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;government_link_solutions_navbar&quot;}" href="/solutions/industry/government">
      Government

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;view_all_industries&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;view_all_industries_link_solutions_navbar&quot;}" href="/solutions/industry">
      View all industries

    
</a></li>

                  </ul>
                </div>
            </div>
        </div>

          <div class="HeaderMenu-trailing-link rounded-bottom-2 mt-lg-4 px-lg-4 py-4 py-lg-3 f5 text-semibold">
            <a data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;view_all_solutions&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;view_all_solutions_link_solutions_navbar&quot;}" href="/solutions">
              View all solutions
              <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-right HeaderMenu-trailing-link-icon">
    <path d="M6.22 3.22a.75.75 0 0 1 1.06 0l4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L9.94 8 6.22 4.28a.75.75 0 0 1 0-1.06Z"></path>
</svg>
</a>          </div>
      </div>
</li>


                <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item">
      <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false">
        Resources
        <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1">
    <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path>
</svg>
      </button>

      <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 dropdown-menu-wide">
        <div class="d-lg-flex dropdown-menu-wide">
            <div class="HeaderMenu-column px-lg-4 pb-3 pb-lg-0 border-lg-right">
                <div class="border-bottom border-lg-bottom-0 pb-lg-0 pb-3">

                      <span class="d-block h4 color-fg-default my-1" id="resources-topics-heading">Topics</span>

                  <ul class="list-style-none f5" aria-labelledby="resources-topics-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;ai&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;ai_link_resources_navbar&quot;}" href="/resources/articles/ai">
      AI

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;devops&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;devops_link_resources_navbar&quot;}" href="/resources/articles/devops">
      DevOps

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;security&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;security_link_resources_navbar&quot;}" href="/resources/articles/security">
      Security

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;software_development&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;software_development_link_resources_navbar&quot;}" href="/resources/articles/software-development">
      Software Development

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;view_all&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;view_all_link_resources_navbar&quot;}" href="/resources/articles">
      View all

    
</a></li>

                  </ul>
                </div>
            </div>
            <div class="HeaderMenu-column px-lg-4">
                <div class="border-bottom border-lg-bottom-0 pb-lg-0 border-bottom-0">

                      <span class="d-block h4 color-fg-default my-1" id="resources-explore-heading">Explore</span>

                  <ul class="list-style-none f5" aria-labelledby="resources-explore-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;learning_pathways&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;learning_pathways_link_resources_navbar&quot;}" href="https://resources.github.com/learn/pathways">
      Learning Pathways

    <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle">
    <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path>
</svg>
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;events_amp_webinars&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;events_amp_webinars_link_resources_navbar&quot;}" href="https://github.com/resources/events">
      Events &amp; Webinars

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;ebooks_amp_whitepapers&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;ebooks_amp_whitepapers_link_resources_navbar&quot;}" href="https://github.com/resources/whitepapers">
      Ebooks &amp; Whitepapers

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;customer_stories&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;customer_stories_link_resources_navbar&quot;}" href="https://github.com/customer-stories">
      Customer Stories

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;partners&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;partners_link_resources_navbar&quot;}" href="https://github.com/partners">
      Partners

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;executive_insights&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;executive_insights_link_resources_navbar&quot;}" href="https://github.com/solutions/executive-insights">
      Executive Insights

    
</a></li>

                  </ul>
                </div>
            </div>
        </div>

      </div>
</li>


                <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item">
      <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false">
        Open Source
        <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1">
    <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path>
</svg>
      </button>

      <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4">
        <div class="d-lg-flex dropdown-menu-wide">
            <div class="HeaderMenu-column px-lg-4">
                <div class="border-bottom mb-3 mb-lg-3 pb-3">

                  <ul class="list-style-none f5" >
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;github_sponsors&quot;,&quot;context&quot;:&quot;open_source&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;github_sponsors_link_open_source_navbar&quot;}" href="/sponsors">
      
      <div>
        <div class="color-fg-default h4">
          GitHub Sponsors

        </div>

        Fund open source developers
      </div>

    
</a></li>

                  </ul>
                </div>
                <div class="border-bottom mb-3 mb-lg-3 pb-3">

                  <ul class="list-style-none f5" >
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;the_readme_project&quot;,&quot;context&quot;:&quot;open_source&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;the_readme_project_link_open_source_navbar&quot;}" href="https://github.com/readme">
      
      <div>
        <div class="color-fg-default h4">
          The ReadME Project

        </div>

        GitHub community articles
      </div>

    
</a></li>

                  </ul>
                </div>
                <div class="border-bottom border-bottom-0">

                      <span class="d-block h4 color-fg-default my-1" id="open-source-repositories-heading">Repositories</span>

                  <ul class="list-style-none f5" aria-labelledby="open-source-repositories-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;topics&quot;,&quot;context&quot;:&quot;open_source&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;topics_link_open_source_navbar&quot;}" href="https://github.com/topics">
      Topics

    
</a></li>

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  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;trending&quot;,&quot;context&quot;:&quot;open_source&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;trending_link_open_source_navbar&quot;}" href="https://github.com/trending">
      Trending

    
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  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;collections&quot;,&quot;context&quot;:&quot;open_source&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;collections_link_open_source_navbar&quot;}" href="https://github.com/collections">
      Collections

    
</a></li>

                  </ul>
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        </div>

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</li>


                <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item">
      <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false">
        Enterprise
        <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1">
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      <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4">
        <div class="d-lg-flex dropdown-menu-wide">
            <div class="HeaderMenu-column px-lg-4">
                <div class="border-bottom mb-3 mb-lg-3 pb-3">

                  <ul class="list-style-none f5" >
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  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;enterprise_platform&quot;,&quot;context&quot;:&quot;enterprise&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;enterprise_platform_link_enterprise_navbar&quot;}" href="/enterprise">
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</svg>
      <div>
        <div class="color-fg-default h4">
          Enterprise platform

        </div>

        AI-powered developer platform
      </div>

    
</a></li>

                  </ul>
                </div>
                <div class="border-bottom border-bottom-0">

                      <span class="d-block h4 color-fg-default my-1" id="enterprise-available-add-ons-heading">Available add-ons</span>

                  <ul class="list-style-none f5" aria-labelledby="enterprise-available-add-ons-heading">
                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description mb-lg-3" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;github_advanced_security&quot;,&quot;context&quot;:&quot;enterprise&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;github_advanced_security_link_enterprise_navbar&quot;}" href="https://github.com/security/advanced-security">
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</svg>
      <div>
        <div class="color-fg-default h4">
          GitHub Advanced Security

        </div>

        Enterprise-grade security features
      </div>

    
</a></li>

                      <li>
  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description mb-lg-3" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;copilot_for_business&quot;,&quot;context&quot;:&quot;enterprise&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;copilot_for_business_link_enterprise_navbar&quot;}" href="/features/copilot/copilot-business">
      <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-copilot color-fg-subtle mr-3">
    <path d="M23.922 16.992c-.861 1.495-5.859 5.023-11.922 5.023-6.063 0-11.061-3.528-11.922-5.023A.641.641 0 0 1 0 16.736v-2.869a.841.841 0 0 1 .053-.22c.372-.935 1.347-2.292 2.605-2.656.167-.429.414-1.055.644-1.517a10.195 10.195 0 0 1-.052-1.086c0-1.331.282-2.499 1.132-3.368.397-.406.89-.717 1.474-.952 1.399-1.136 3.392-2.093 6.122-2.093 2.731 0 4.767.957 6.166 2.093.584.235 1.077.546 1.474.952.85.869 1.132 2.037 1.132 3.368 0 .368-.014.733-.052 1.086.23.462.477 1.088.644 1.517 1.258.364 2.233 1.721 2.605 2.656a.832.832 0 0 1 .053.22v2.869a.641.641 0 0 1-.078.256ZM12.172 11h-.344a4.323 4.323 0 0 1-.355.508C10.703 12.455 9.555 13 7.965 13c-1.725 0-2.989-.359-3.782-1.259a2.005 2.005 0 0 1-.085-.104L4 11.741v6.585c1.435.779 4.514 2.179 8 2.179 3.486 0 6.565-1.4 8-2.179v-6.585l-.098-.104s-.033.045-.085.104c-.793.9-2.057 1.259-3.782 1.259-1.59 0-2.738-.545-3.508-1.492a4.323 4.323 0 0 1-.355-.508h-.016.016Zm.641-2.935c.136 1.057.403 1.913.878 2.497.442.544 1.134.938 2.344.938 1.573 0 2.292-.337 2.657-.751.384-.435.558-1.15.558-2.361 0-1.14-.243-1.847-.705-2.319-.477-.488-1.319-.862-2.824-1.025-1.487-.161-2.192.138-2.533.529-.269.307-.437.808-.438 1.578v.021c0 .265.021.562.063.893Zm-1.626 0c.042-.331.063-.628.063-.894v-.02c-.001-.77-.169-1.271-.438-1.578-.341-.391-1.046-.69-2.533-.529-1.505.163-2.347.537-2.824 1.025-.462.472-.705 1.179-.705 2.319 0 1.211.175 1.926.558 2.361.365.414 1.084.751 2.657.751 1.21 0 1.902-.394 2.344-.938.475-.584.742-1.44.878-2.497Z"></path><path d="M14.5 14.25a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Zm-5 0a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Z"></path>
</svg>
      <div>
        <div class="color-fg-default h4">
          Copilot for business

        </div>

        Enterprise-grade AI features
      </div>

    
</a></li>

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  <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;premium_support&quot;,&quot;context&quot;:&quot;enterprise&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;premium_support_link_enterprise_navbar&quot;}" href="/premium-support">
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</svg>
      <div>
        <div class="color-fg-default h4">
          Premium Support

        </div>

        Enterprise-grade 24/7 support
      </div>

    
</a></li>

                  </ul>
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        </div>

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</li>


                <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item">
    <a class="HeaderMenu-link no-underline px-0 px-lg-2 py-3 py-lg-2 d-block d-lg-inline-block" data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;platform&quot;,&quot;context&quot;:&quot;global&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;platform_link_global_navbar&quot;}" href="https://github.com/pricing">Pricing</a>
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<qbsearch-input class="search-input" data-scope="repo:cplusplus/draft" data-custom-scopes-path="/search/custom_scopes" data-delete-custom-scopes-csrf="0b-8qqqtWt1exa3I4UL0TIppBwohckcH_GIbH99XDI_y5eeq0Hbta-EPpiKv3hO3Lu1SYCy2k-eldmIkW2cQIQ" data-max-custom-scopes="10" data-header-redesign-enabled="false" data-initial-value="" data-blackbird-suggestions-path="/search/suggestions" data-jump-to-suggestions-path="/_graphql/GetSuggestedNavigationDestinations" data-current-repository="cplusplus/draft" data-current-org="cplusplus" data-current-owner="" data-logged-in="false" data-copilot-chat-enabled="false" data-nl-search-enabled="false" data-retain-scroll-position="true">
  <div
    class="search-input-container search-with-dialog position-relative d-flex flex-row flex-items-center mr-4 rounded"
    data-action="click:qbsearch-input#searchInputContainerClicked"
  >
      <button
        type="button"
        class="header-search-button placeholder  input-button form-control d-flex flex-1 flex-self-stretch flex-items-center no-wrap width-full py-0 pl-2 pr-0 text-left border-0 box-shadow-none"
        data-target="qbsearch-input.inputButton"
        aria-label="Search or jump to…"
        aria-haspopup="dialog"
        placeholder="Search or jump to..."
        data-hotkey=s,/
        autocapitalize="off"
        data-analytics-event="{&quot;location&quot;:&quot;navbar&quot;,&quot;action&quot;:&quot;searchbar&quot;,&quot;context&quot;:&quot;global&quot;,&quot;tag&quot;:&quot;input&quot;,&quot;label&quot;:&quot;searchbar_input_global_navbar&quot;}"
        data-action="click:qbsearch-input#handleExpand"
      >
        <div class="mr-2 color-fg-muted">
          <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-search">
    <path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path>
</svg>
        </div>
        <span class="flex-1" data-target="qbsearch-input.inputButtonText">Search or jump to...</span>
          <div class="d-flex" data-target="qbsearch-input.hotkeyIndicator">
            <svg xmlns="http://www.w3.org/2000/svg" width="22" height="20" aria-hidden="true" class="mr-1"><path fill="none" stroke="#979A9C" opacity=".4" d="M3.5.5h12c1.7 0 3 1.3 3 3v13c0 1.7-1.3 3-3 3h-12c-1.7 0-3-1.3-3-3v-13c0-1.7 1.3-3 3-3z"></path><path fill="#979A9C" d="M11.8 6L8 15.1h-.9L10.8 6h1z"></path></svg>
          </div>
      </button>

    <input type="hidden" name="type" class="js-site-search-type-field">

    
<div class="Overlay--hidden " data-modal-dialog-overlay>
  <modal-dialog data-action="close:qbsearch-input#handleClose cancel:qbsearch-input#handleClose" data-target="qbsearch-input.searchSuggestionsDialog" role="dialog" id="search-suggestions-dialog" aria-modal="true" aria-labelledby="search-suggestions-dialog-header" data-view-component="true" class="Overlay Overlay--width-large Overlay--height-auto">
      <h1 id="search-suggestions-dialog-header" class="sr-only">Search code, repositories, users, issues, pull requests...</h1>
    <div class="Overlay-body Overlay-body--paddingNone">
      
          <div data-view-component="true">        <div class="search-suggestions position-fixed width-full color-shadow-large border color-fg-default color-bg-default overflow-hidden d-flex flex-column query-builder-container"
          style="border-radius: 12px;"
          data-target="qbsearch-input.queryBuilderContainer"
          hidden
        >
          <!-- '"` --><!-- </textarea></xmp> --></option></form><form id="query-builder-test-form" action="" accept-charset="UTF-8" method="get">
  <query-builder data-target="qbsearch-input.queryBuilder" id="query-builder-query-builder-test" data-filter-key=":" data-view-component="true" class="QueryBuilder search-query-builder">
    <div class="FormControl FormControl--fullWidth">
      <label id="query-builder-test-label" for="query-builder-test" class="FormControl-label sr-only">
        Search
      </label>
      <div
        class="QueryBuilder-StyledInput width-fit "
        data-target="query-builder.styledInput"
      >
          <span id="query-builder-test-leadingvisual-wrap" class="FormControl-input-leadingVisualWrap QueryBuilder-leadingVisualWrap">
            <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-search FormControl-input-leadingVisual">
    <path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path>
</svg>
          </span>
        <div data-target="query-builder.styledInputContainer" class="QueryBuilder-StyledInputContainer">
          <div
            aria-hidden="true"
            class="QueryBuilder-StyledInputContent"
            data-target="query-builder.styledInputContent"
          ></div>
          <div class="QueryBuilder-InputWrapper">
            <div aria-hidden="true" class="QueryBuilder-Sizer" data-target="query-builder.sizer"></div>
            <input id="query-builder-test" name="query-builder-test" value="" autocomplete="off" type="text" role="combobox" spellcheck="false" aria-expanded="false" aria-describedby="validation-493b13ea-912b-4854-83bc-a85ffcee0874" data-target="query-builder.input" data-action="
          input:query-builder#inputChange
          blur:query-builder#inputBlur
          keydown:query-builder#inputKeydown
          focus:query-builder#inputFocus
        " data-view-component="true" class="FormControl-input QueryBuilder-Input FormControl-medium" />
          </div>
        </div>
          <span class="sr-only" id="query-builder-test-clear">Clear</span>
          <button role="button" id="query-builder-test-clear-button" aria-labelledby="query-builder-test-clear query-builder-test-label" data-target="query-builder.clearButton" data-action="
                click:query-builder#clear
                focus:query-builder#clearButtonFocus
                blur:query-builder#clearButtonBlur
              " variant="small" hidden="hidden" type="button" data-view-component="true" class="Button Button--iconOnly Button--invisible Button--medium mr-1 px-2 py-0 d-flex flex-items-center rounded-1 color-fg-muted">  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x-circle-fill Button-visual">
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</svg>
</button>

      </div>
      <template id="search-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-search">
    <path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path>
</svg>
</template>

<template id="code-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code">
    <path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path>
</svg>
</template>

<template id="file-code-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-file-code">
    <path d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0Zm1.72 4.97a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734l1.47-1.47-1.47-1.47a.75.75 0 0 1 0-1.06ZM3.28 7.78 1.81 9.25l1.47 1.47a.751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018l-2-2a.75.75 0 0 1 0-1.06l2-2a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Zm8.22-6.218V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path>
</svg>
</template>

<template id="history-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-history">
    <path d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path>
</svg>
</template>

<template id="repo-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo">
    <path d="M2 2.5A2.5 2.5 0 0 1 4.5 0h8.75a.75.75 0 0 1 .75.75v12.5a.75.75 0 0 1-.75.75h-2.5a.75.75 0 0 1 0-1.5h1.75v-2h-8a1 1 0 0 0-.714 1.7.75.75 0 1 1-1.072 1.05A2.495 2.495 0 0 1 2 11.5Zm10.5-1h-8a1 1 0 0 0-1 1v6.708A2.486 2.486 0 0 1 4.5 9h8ZM5 12.25a.25.25 0 0 1 .25-.25h3.5a.25.25 0 0 1 .25.25v3.25a.25.25 0 0 1-.4.2l-1.45-1.087a.249.249 0 0 0-.3 0L5.4 15.7a.25.25 0 0 1-.4-.2Z"></path>
</svg>
</template>

<template id="bookmark-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-bookmark">
    <path d="M3 2.75C3 1.784 3.784 1 4.75 1h6.5c.966 0 1.75.784 1.75 1.75v11.5a.75.75 0 0 1-1.227.579L8 11.722l-3.773 3.107A.751.751 0 0 1 3 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v9.91l3.023-2.489a.75.75 0 0 1 .954 0l3.023 2.49V2.75a.25.25 0 0 0-.25-.25Z"></path>
</svg>
</template>

<template id="plus-circle-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-plus-circle">
    <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm7.25-3.25v2.5h2.5a.75.75 0 0 1 0 1.5h-2.5v2.5a.75.75 0 0 1-1.5 0v-2.5h-2.5a.75.75 0 0 1 0-1.5h2.5v-2.5a.75.75 0 0 1 1.5 0Z"></path>
</svg>
</template>

<template id="circle-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-dot-fill">
    <path d="M8 4a4 4 0 1 1 0 8 4 4 0 0 1 0-8Z"></path>
</svg>
</template>

<template id="trash-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-trash">
    <path d="M11 1.75V3h2.25a.75.75 0 0 1 0 1.5H2.75a.75.75 0 0 1 0-1.5H5V1.75C5 .784 5.784 0 6.75 0h2.5C10.216 0 11 .784 11 1.75ZM4.496 6.675l.66 6.6a.25.25 0 0 0 .249.225h5.19a.25.25 0 0 0 .249-.225l.66-6.6a.75.75 0 0 1 1.492.149l-.66 6.6A1.748 1.748 0 0 1 10.595 15h-5.19a1.75 1.75 0 0 1-1.741-1.575l-.66-6.6a.75.75 0 1 1 1.492-.15ZM6.5 1.75V3h3V1.75a.25.25 0 0 0-.25-.25h-2.5a.25.25 0 0 0-.25.25Z"></path>
</svg>
</template>

<template id="team-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-people">
    <path d="M2 5.5a3.5 3.5 0 1 1 5.898 2.549 5.508 5.508 0 0 1 3.034 4.084.75.75 0 1 1-1.482.235 4 4 0 0 0-7.9 0 .75.75 0 0 1-1.482-.236A5.507 5.507 0 0 1 3.102 8.05 3.493 3.493 0 0 1 2 5.5ZM11 4a3.001 3.001 0 0 1 2.22 5.018 5.01 5.01 0 0 1 2.56 3.012.749.749 0 0 1-.885.954.752.752 0 0 1-.549-.514 3.507 3.507 0 0 0-2.522-2.372.75.75 0 0 1-.574-.73v-.352a.75.75 0 0 1 .416-.672A1.5 1.5 0 0 0 11 5.5.75.75 0 0 1 11 4Zm-5.5-.5a2 2 0 1 0-.001 3.999A2 2 0 0 0 5.5 3.5Z"></path>
</svg>
</template>

<template id="project-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-project">
    <path d="M1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25V1.75C0 .784.784 0 1.75 0ZM1.5 1.75v12.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25ZM11.75 3a.75.75 0 0 1 .75.75v7.5a.75.75 0 0 1-1.5 0v-7.5a.75.75 0 0 1 .75-.75Zm-8.25.75a.75.75 0 0 1 1.5 0v5.5a.75.75 0 0 1-1.5 0ZM8 3a.75.75 0 0 1 .75.75v3.5a.75.75 0 0 1-1.5 0v-3.5A.75.75 0 0 1 8 3Z"></path>
</svg>
</template>

<template id="pencil-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-pencil">
    <path d="M11.013 1.427a1.75 1.75 0 0 1 2.474 0l1.086 1.086a1.75 1.75 0 0 1 0 2.474l-8.61 8.61c-.21.21-.47.364-.756.445l-3.251.93a.75.75 0 0 1-.927-.928l.929-3.25c.081-.286.235-.547.445-.758l8.61-8.61Zm.176 4.823L9.75 4.81l-6.286 6.287a.253.253 0 0 0-.064.108l-.558 1.953 1.953-.558a.253.253 0 0 0 .108-.064Zm1.238-3.763a.25.25 0 0 0-.354 0L10.811 3.75l1.439 1.44 1.263-1.263a.25.25 0 0 0 0-.354Z"></path>
</svg>
</template>

<template id="copilot-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copilot">
    <path d="M7.998 15.035c-4.562 0-7.873-2.914-7.998-3.749V9.338c.085-.628.677-1.686 1.588-2.065.013-.07.024-.143.036-.218.029-.183.06-.384.126-.612-.201-.508-.254-1.084-.254-1.656 0-.87.128-1.769.693-2.484.579-.733 1.494-1.124 2.724-1.261 1.206-.134 2.262.034 2.944.765.05.053.096.108.139.165.044-.057.094-.112.143-.165.682-.731 1.738-.899 2.944-.765 1.23.137 2.145.528 2.724 1.261.566.715.693 1.614.693 2.484 0 .572-.053 1.148-.254 1.656.066.228.098.429.126.612.012.076.024.148.037.218.924.385 1.522 1.471 1.591 2.095v1.872c0 .766-3.351 3.795-8.002 3.795Zm0-1.485c2.28 0 4.584-1.11 5.002-1.433V7.862l-.023-.116c-.49.21-1.075.291-1.727.291-1.146 0-2.059-.327-2.71-.991A3.222 3.222 0 0 1 8 6.303a3.24 3.24 0 0 1-.544.743c-.65.664-1.563.991-2.71.991-.652 0-1.236-.081-1.727-.291l-.023.116v4.255c.419.323 2.722 1.433 5.002 1.433ZM6.762 2.83c-.193-.206-.637-.413-1.682-.297-1.019.113-1.479.404-1.713.7-.247.312-.369.789-.369 1.554 0 .793.129 1.171.308 1.371.162.181.519.379 1.442.379.853 0 1.339-.235 1.638-.54.315-.322.527-.827.617-1.553.117-.935-.037-1.395-.241-1.614Zm4.155-.297c-1.044-.116-1.488.091-1.681.297-.204.219-.359.679-.242 1.614.091.726.303 1.231.618 1.553.299.305.784.54 1.638.54.922 0 1.28-.198 1.442-.379.179-.2.308-.578.308-1.371 0-.765-.123-1.242-.37-1.554-.233-.296-.693-.587-1.713-.7Z"></path><path d="M6.25 9.037a.75.75 0 0 1 .75.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 .75-.75Zm4.25.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 1.5 0Z"></path>
</svg>
</template>

<template id="copilot-error-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copilot-error">
    <path d="M16 11.24c0 .112-.072.274-.21.467L13 9.688V7.862l-.023-.116c-.49.21-1.075.291-1.727.291-.198 0-.388-.009-.571-.029L6.833 5.226a4.01 4.01 0 0 0 .17-.782c.117-.935-.037-1.395-.241-1.614-.193-.206-.637-.413-1.682-.297-.683.076-1.115.231-1.395.415l-1.257-.91c.579-.564 1.413-.877 2.485-.996 1.206-.134 2.262.034 2.944.765.05.053.096.108.139.165.044-.057.094-.112.143-.165.682-.731 1.738-.899 2.944-.765 1.23.137 2.145.528 2.724 1.261.566.715.693 1.614.693 2.484 0 .572-.053 1.148-.254 1.656.066.228.098.429.126.612.012.076.024.148.037.218.924.385 1.522 1.471 1.591 2.095Zm-5.083-8.707c-1.044-.116-1.488.091-1.681.297-.204.219-.359.679-.242 1.614.091.726.303 1.231.618 1.553.299.305.784.54 1.638.54.922 0 1.28-.198 1.442-.379.179-.2.308-.578.308-1.371 0-.765-.123-1.242-.37-1.554-.233-.296-.693-.587-1.713-.7Zm2.511 11.074c-1.393.776-3.272 1.428-5.43 1.428-4.562 0-7.873-2.914-7.998-3.749V9.338c.085-.628.677-1.686 1.588-2.065.013-.07.024-.143.036-.218.029-.183.06-.384.126-.612-.18-.455-.241-.963-.252-1.475L.31 4.107A.747.747 0 0 1 0 3.509V3.49a.748.748 0 0 1 .625-.73c.156-.026.306.047.435.139l14.667 10.578a.592.592 0 0 1 .227.264.752.752 0 0 1 .046.249v.022a.75.75 0 0 1-1.19.596Zm-1.367-.991L5.635 7.964a5.128 5.128 0 0 1-.889.073c-.652 0-1.236-.081-1.727-.291l-.023.116v4.255c.419.323 2.722 1.433 5.002 1.433 1.539 0 3.089-.505 4.063-.934Z"></path>
</svg>
</template>

<template id="workflow-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-workflow">
    <path d="M0 1.75C0 .784.784 0 1.75 0h3.5C6.216 0 7 .784 7 1.75v3.5A1.75 1.75 0 0 1 5.25 7H4v4a1 1 0 0 0 1 1h4v-1.25C9 9.784 9.784 9 10.75 9h3.5c.966 0 1.75.784 1.75 1.75v3.5A1.75 1.75 0 0 1 14.25 16h-3.5A1.75 1.75 0 0 1 9 14.25v-.75H5A2.5 2.5 0 0 1 2.5 11V7h-.75A1.75 1.75 0 0 1 0 5.25Zm1.75-.25a.25.25 0 0 0-.25.25v3.5c0 .138.112.25.25.25h3.5a.25.25 0 0 0 .25-.25v-3.5a.25.25 0 0 0-.25-.25Zm9 9a.25.25 0 0 0-.25.25v3.5c0 .138.112.25.25.25h3.5a.25.25 0 0 0 .25-.25v-3.5a.25.25 0 0 0-.25-.25Z"></path>
</svg>
</template>

<template id="book-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-book">
    <path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path>
</svg>
</template>

<template id="code-review-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code-review">
    <path d="M1.75 1h12.5c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 13H8.061l-2.574 2.573A1.458 1.458 0 0 1 3 14.543V13H1.75A1.75 1.75 0 0 1 0 11.25v-8.5C0 1.784.784 1 1.75 1ZM1.5 2.75v8.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25Zm5.28 1.72a.75.75 0 0 1 0 1.06L5.31 7l1.47 1.47a.751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018l-2-2a.75.75 0 0 1 0-1.06l2-2a.75.75 0 0 1 1.06 0Zm2.44 0a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L10.69 7 9.22 5.53a.75.75 0 0 1 0-1.06Z"></path>
</svg>
</template>

<template id="codespaces-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-codespaces">
    <path d="M0 11.25c0-.966.784-1.75 1.75-1.75h12.5c.966 0 1.75.784 1.75 1.75v3A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25Zm2-9.5C2 .784 2.784 0 3.75 0h8.5C13.216 0 14 .784 14 1.75v5a1.75 1.75 0 0 1-1.75 1.75h-8.5A1.75 1.75 0 0 1 2 6.75Zm1.75-.25a.25.25 0 0 0-.25.25v5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-5a.25.25 0 0 0-.25-.25Zm-2 9.5a.25.25 0 0 0-.25.25v3c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-3a.25.25 0 0 0-.25-.25Z"></path><path d="M7 12.75a.75.75 0 0 1 .75-.75h4.5a.75.75 0 0 1 0 1.5h-4.5a.75.75 0 0 1-.75-.75Zm-4 0a.75.75 0 0 1 .75-.75h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1-.75-.75Z"></path>
</svg>
</template>

<template id="comment-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-comment">
    <path d="M1 2.75C1 1.784 1.784 1 2.75 1h10.5c.966 0 1.75.784 1.75 1.75v7.5A1.75 1.75 0 0 1 13.25 12H9.06l-2.573 2.573A1.458 1.458 0 0 1 4 13.543V12H2.75A1.75 1.75 0 0 1 1 10.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h4.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path>
</svg>
</template>

<template id="comment-discussion-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-comment-discussion">
    <path d="M1.75 1h8.5c.966 0 1.75.784 1.75 1.75v5.5A1.75 1.75 0 0 1 10.25 10H7.061l-2.574 2.573A1.458 1.458 0 0 1 2 11.543V10h-.25A1.75 1.75 0 0 1 0 8.25v-5.5C0 1.784.784 1 1.75 1ZM1.5 2.75v5.5c0 .138.112.25.25.25h1a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h3.5a.25.25 0 0 0 .25-.25v-5.5a.25.25 0 0 0-.25-.25h-8.5a.25.25 0 0 0-.25.25Zm13 2a.25.25 0 0 0-.25-.25h-.5a.75.75 0 0 1 0-1.5h.5c.966 0 1.75.784 1.75 1.75v5.5A1.75 1.75 0 0 1 14.25 12H14v1.543a1.458 1.458 0 0 1-2.487 1.03L9.22 12.28a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215l2.22 2.22v-2.19a.75.75 0 0 1 .75-.75h1a.25.25 0 0 0 .25-.25Z"></path>
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</template>

<template id="organization-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-organization">
    <path d="M1.75 16A1.75 1.75 0 0 1 0 14.25V1.75C0 .784.784 0 1.75 0h8.5C11.216 0 12 .784 12 1.75v12.5c0 .085-.006.168-.018.25h2.268a.25.25 0 0 0 .25-.25V8.285a.25.25 0 0 0-.111-.208l-1.055-.703a.749.749 0 1 1 .832-1.248l1.055.703c.487.325.779.871.779 1.456v5.965A1.75 1.75 0 0 1 14.25 16h-3.5a.766.766 0 0 1-.197-.026c-.099.017-.2.026-.303.026h-3a.75.75 0 0 1-.75-.75V14h-1v1.25a.75.75 0 0 1-.75.75Zm-.25-1.75c0 .138.112.25.25.25H4v-1.25a.75.75 0 0 1 .75-.75h2.5a.75.75 0 0 1 .75.75v1.25h2.25a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25h-8.5a.25.25 0 0 0-.25.25ZM3.75 6h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5ZM3 3.75A.75.75 0 0 1 3.75 3h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 3 3.75Zm4 3A.75.75 0 0 1 7.75 6h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 7 6.75ZM7.75 3h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5ZM3 9.75A.75.75 0 0 1 3.75 9h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 3 9.75ZM7.75 9h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5Z"></path>
</svg>
</template>

<template id="rocket-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-rocket">
    <path d="M14.064 0h.186C15.216 0 16 .784 16 1.75v.186a8.752 8.752 0 0 1-2.564 6.186l-.458.459c-.314.314-.641.616-.979.904v3.207c0 .608-.315 1.172-.833 1.49l-2.774 1.707a.749.749 0 0 1-1.11-.418l-.954-3.102a1.214 1.214 0 0 1-.145-.125L3.754 9.816a1.218 1.218 0 0 1-.124-.145L.528 8.717a.749.749 0 0 1-.418-1.11l1.71-2.774A1.748 1.748 0 0 1 3.31 4h3.204c.288-.338.59-.665.904-.979l.459-.458A8.749 8.749 0 0 1 14.064 0ZM8.938 3.623h-.002l-.458.458c-.76.76-1.437 1.598-2.02 2.5l-1.5 2.317 2.143 2.143 2.317-1.5c.902-.583 1.74-1.26 2.499-2.02l.459-.458a7.25 7.25 0 0 0 2.123-5.127V1.75a.25.25 0 0 0-.25-.25h-.186a7.249 7.249 0 0 0-5.125 2.123ZM3.56 14.56c-.732.732-2.334 1.045-3.005 1.148a.234.234 0 0 1-.201-.064.234.234 0 0 1-.064-.201c.103-.671.416-2.273 1.15-3.003a1.502 1.502 0 1 1 2.12 2.12Zm6.94-3.935c-.088.06-.177.118-.266.175l-2.35 1.521.548 1.783 1.949-1.2a.25.25 0 0 0 .119-.213ZM3.678 8.116 5.2 5.766c.058-.09.117-.178.176-.266H3.309a.25.25 0 0 0-.213.119l-1.2 1.95ZM12 5a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path>
</svg>
</template>

<template id="shield-check-icon">
  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-shield-check">
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<template id="package-icon">
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<template id="credit-card-icon">
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<template id="play-icon">
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<template id="gift-icon">
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<template id="code-square-icon">
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              name="custom_scope_query"
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              required
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              </a>
            </div>

              <a href="/signup?ref_cta=Sign+up&amp;ref_loc=header+logged+out&amp;ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fissues_fragments%2Fissue_layout&amp;source=header-repo&amp;source_repo=cplusplus%2Fdraft"
                class="HeaderMenu-link HeaderMenu-link--sign-up HeaderMenu-button flex-shrink-0 d-flex d-lg-inline-flex no-underline border color-border-default rounded px-2 py-1"
                data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;site header menu&quot;,&quot;repository_id&quot;:null,&quot;auth_type&quot;:&quot;SIGN_UP&quot;,&quot;originating_url&quot;:&quot;https://github.com/cplusplus/draft/issues/4837&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="264d08842059c66acd056a822ca81c1e76a4e4aed5d42485489927574f3b01c1"
                data-analytics-event="{&quot;category&quot;:&quot;Sign up&quot;,&quot;action&quot;:&quot;click to sign up for account&quot;,&quot;label&quot;:&quot;ref_page:/&lt;user-name&gt;/&lt;repo-name&gt;/voltron/issues_fragments/issue_layout;ref_cta:Sign up;ref_loc:header logged out&quot;}"
              >
                Sign up
              </a>

                <div class="AppHeader-appearanceSettings">
    <react-partial-anchor>
      <button data-target="react-partial-anchor.anchor" id="icon-button-ecd8a7b1-cc47-49c7-987f-2a8aa0d8093a" aria-labelledby="tooltip-e34535ca-5dec-4f22-9119-8954760ab937" type="button" disabled="disabled" data-view-component="true" class="Button Button--iconOnly Button--invisible Button--medium AppHeader-button HeaderMenu-link border cursor-wait">  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-sliders Button-visual">
    <path d="M15 2.75a.75.75 0 0 1-.75.75h-4a.75.75 0 0 1 0-1.5h4a.75.75 0 0 1 .75.75Zm-8.5.75v1.25a.75.75 0 0 0 1.5 0v-4a.75.75 0 0 0-1.5 0V2H1.75a.75.75 0 0 0 0 1.5H6.5Zm1.25 5.25a.75.75 0 0 0 0-1.5h-6a.75.75 0 0 0 0 1.5h6ZM15 8a.75.75 0 0 1-.75.75H11.5V10a.75.75 0 1 1-1.5 0V6a.75.75 0 0 1 1.5 0v1.25h2.75A.75.75 0 0 1 15 8Zm-9 5.25v-2a.75.75 0 0 0-1.5 0v1.25H1.75a.75.75 0 0 0 0 1.5H4.5v1.25a.75.75 0 0 0 1.5 0v-2Zm9 0a.75.75 0 0 1-.75.75h-6a.75.75 0 0 1 0-1.5h6a.75.75 0 0 1 .75.75Z"></path>
</svg>
</button><tool-tip id="tooltip-e34535ca-5dec-4f22-9119-8954760ab937" for="icon-button-ecd8a7b1-cc47-49c7-987f-2a8aa0d8093a" popover="manual" data-direction="s" data-type="label" data-view-component="true" class="sr-only position-absolute">Appearance settings</tool-tip>

      <template data-target="react-partial-anchor.template">
        <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/appearance-settings.6c63a6de228d6520804d.module.css" />

<react-partial
  partial-name="appearance-settings"
  data-ssr="false"
  data-attempted-ssr="false"
  data-react-profiling="false"
>
  
  <script type="application/json" data-target="react-partial.embeddedData">{"props":{}}</script>
  <div data-target="react-partial.reactRoot"></div>
</react-partial>


      </template>
    </react-partial-anchor>
  </div>

          <button type="button" class="sr-only js-header-menu-focus-trap d-block d-lg-none">Resetting focus</button>
        </div>
      </div>
    </div>
  </div>
</header>

      <div hidden="hidden" data-view-component="true" class="js-stale-session-flash stale-session-flash flash flash-warn flash-full">
  
        <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-alert">
    <path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path>
</svg>
        <span class="js-stale-session-flash-signed-in" hidden>You signed in with another tab or window. <a class="Link--inTextBlock" href="">Reload</a> to refresh your session.</span>
        <span class="js-stale-session-flash-signed-out" hidden>You signed out in another tab or window. <a class="Link--inTextBlock" href="">Reload</a> to refresh your session.</span>
        <span class="js-stale-session-flash-switched" hidden>You switched accounts on another tab or window. <a class="Link--inTextBlock" href="">Reload</a> to refresh your session.</span>

    <button id="icon-button-fc56c12c-b3bc-498b-b1ba-7f657cdd3977" aria-labelledby="tooltip-ba4300b3-33e0-4778-9520-4fc7ab8b36c7" type="button" data-view-component="true" class="Button Button--iconOnly Button--invisible Button--medium flash-close js-flash-close">  <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x Button-visual">
    <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path>
</svg>
</button><tool-tip id="tooltip-ba4300b3-33e0-4778-9520-4fc7ab8b36c7" for="icon-button-fc56c12c-b3bc-498b-b1ba-7f657cdd3977" popover="manual" data-direction="s" data-type="label" data-view-component="true" class="sr-only position-absolute">Dismiss alert</tool-tip>


  
</div>
    </div>

  <div id="start-of-content" class="show-on-focus"></div>








    <div id="js-flash-container" class="flash-container" data-turbo-replace>




  <template class="js-flash-template">
    
<div class="flash flash-full   {{ className }}">
  <div >
    <button autofocus class="flash-close js-flash-close" type="button" aria-label="Dismiss this message">
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x">
    <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path>
</svg>
    </button>
    <div aria-atomic="true" role="alert" class="js-flash-alert">
      
      <div>{{ message }}</div>

    </div>
  </div>
</div>
  </template>
</div>


    






  <div
    class="application-main "
    data-commit-hovercards-enabled
    data-discussion-hovercards-enabled
    data-issue-and-pr-hovercards-enabled
    data-project-hovercards-enabled
  >
        <div itemscope itemtype="http://schema.org/SoftwareSourceCode" class="">
    <main id="js-repo-pjax-container" >
      
      
    

    






  
  <div id="repository-container-header"  class="pt-3 hide-full-screen" style="background-color: var(--page-header-bgColor, var(--color-page-header-bg));" data-turbo-replace>

      <div class="d-flex flex-nowrap flex-justify-end mb-3  px-3 px-lg-5" style="gap: 1rem;">

        <div class="flex-auto min-width-0 width-fit">
            
  <div class=" d-flex flex-wrap flex-items-center wb-break-word f3 text-normal">
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo color-fg-muted mr-2">
    <path d="M2 2.5A2.5 2.5 0 0 1 4.5 0h8.75a.75.75 0 0 1 .75.75v12.5a.75.75 0 0 1-.75.75h-2.5a.75.75 0 0 1 0-1.5h1.75v-2h-8a1 1 0 0 0-.714 1.7.75.75 0 1 1-1.072 1.05A2.495 2.495 0 0 1 2 11.5Zm10.5-1h-8a1 1 0 0 0-1 1v6.708A2.486 2.486 0 0 1 4.5 9h8ZM5 12.25a.25.25 0 0 1 .25-.25h3.5a.25.25 0 0 1 .25.25v3.25a.25.25 0 0 1-.4.2l-1.45-1.087a.249.249 0 0 0-.3 0L5.4 15.7a.25.25 0 0 1-.4-.2Z"></path>
</svg>
    
    <span class="author flex-self-stretch" itemprop="author">
      <a class="url fn" rel="author" data-hovercard-type="organization" data-hovercard-url="/orgs/cplusplus/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/cplusplus">
        cplusplus
</a>    </span>
    <span class="mx-1 flex-self-stretch color-fg-muted">/</span>
    <strong itemprop="name" class="mr-2 flex-self-stretch">
      <a data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/cplusplus/draft">draft</a>
    </strong>

    <span></span><span class="Label Label--secondary v-align-middle mr-1">Public</span>
  </div>


        </div>

        <div id="repository-details-container" class="flex-shrink-0" data-turbo-replace style="max-width: 70%;">
            <ul class="pagehead-actions flex-shrink-0 d-none d-md-inline" style="padding: 2px 0;">
    
      

  <li>
            <a href="/login?return_to=%2Fcplusplus%2Fdraft" rel="nofollow" id="repository-details-watch-button" data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;notification subscription menu watch&quot;,&quot;repository_id&quot;:null,&quot;auth_type&quot;:&quot;LOG_IN&quot;,&quot;originating_url&quot;:&quot;https://github.com/cplusplus/draft/issues/4837&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="871ae6b7ccbd64ffd1ea82478cf01687f728cd17dbd2c53c8b1ed6f5a16f27ee" aria-label="You must be signed in to change notification settings" data-view-component="true" class="btn-sm btn">    <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-bell mr-2">
    <path d="M8 16a2 2 0 0 0 1.985-1.75c.017-.137-.097-.25-.235-.25h-3.5c-.138 0-.252.113-.235.25A2 2 0 0 0 8 16ZM3 5a5 5 0 0 1 10 0v2.947c0 .05.015.098.042.139l1.703 2.555A1.519 1.519 0 0 1 13.482 13H2.518a1.516 1.516 0 0 1-1.263-2.36l1.703-2.554A.255.255 0 0 0 3 7.947Zm5-3.5A3.5 3.5 0 0 0 4.5 5v2.947c0 .346-.102.683-.294.97l-1.703 2.556a.017.017 0 0 0-.003.01l.001.006c0 .002.002.004.004.006l.006.004.007.001h10.964l.007-.001.006-.004.004-.006.001-.007a.017.017 0 0 0-.003-.01l-1.703-2.554a1.745 1.745 0 0 1-.294-.97V5A3.5 3.5 0 0 0 8 1.5Z"></path>
</svg>Notifications
</a>    <tool-tip id="tooltip-1e7b90f3-89a0-4b75-b2e0-6bb33500e94c" for="repository-details-watch-button" popover="manual" data-direction="s" data-type="description" data-view-component="true" class="sr-only position-absolute">You must be signed in to change notification settings</tool-tip>

  </li>

  <li>
          <a icon="repo-forked" id="fork-button" href="/login?return_to=%2Fcplusplus%2Fdraft" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;repo details fork button&quot;,&quot;repository_id&quot;:2216249,&quot;auth_type&quot;:&quot;LOG_IN&quot;,&quot;originating_url&quot;:&quot;https://github.com/cplusplus/draft/issues/4837&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="bd053ea99b448524c9ea6b26edb36f72714a7aac7ce94bf31eb9e203f957a3f1" data-view-component="true" class="btn-sm btn">    <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo-forked mr-2">
    <path d="M5 5.372v.878c0 .414.336.75.75.75h4.5a.75.75 0 0 0 .75-.75v-.878a2.25 2.25 0 1 1 1.5 0v.878a2.25 2.25 0 0 1-2.25 2.25h-1.5v2.128a2.251 2.251 0 1 1-1.5 0V8.5h-1.5A2.25 2.25 0 0 1 3.5 6.25v-.878a2.25 2.25 0 1 1 1.5 0ZM5 3.25a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Zm6.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm-3 8.75a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Z"></path>
</svg>Fork
    <span id="repo-network-counter" data-pjax-replace="true" data-turbo-replace="true" title="793" data-view-component="true" class="Counter">793</span>
</a>
  </li>

  <li>
        <div data-view-component="true" class="BtnGroup d-flex">
        <a href="/login?return_to=%2Fcplusplus%2Fdraft" rel="nofollow" data-hydro-click="{&quot;event_type&quot;:&quot;authentication.click&quot;,&quot;payload&quot;:{&quot;location_in_page&quot;:&quot;star button&quot;,&quot;repository_id&quot;:2216249,&quot;auth_type&quot;:&quot;LOG_IN&quot;,&quot;originating_url&quot;:&quot;https://github.com/cplusplus/draft/issues/4837&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="52fb03080e0c2661f1bd32a3e9bc6cbadbcdad0ec83f73e6053fd83c0e6fe5d0" aria-label="You must be signed in to star a repository" data-view-component="true" class="tooltipped tooltipped-sw btn-sm btn">    <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star v-align-text-bottom d-inline-block mr-2">
    <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path>
</svg><span data-view-component="true" class="d-inline">
          Star
</span>          <span id="repo-stars-counter-star" aria-label="5938 users starred this repository" data-singular-suffix="user starred this repository" data-plural-suffix="users starred this repository" data-turbo-replace="true" title="5,938" data-view-component="true" class="Counter js-social-count">5.9k</span>
</a></div>
  </li>

</ul>

        </div>
      </div>

        <div id="responsive-meta-container" data-turbo-replace>
</div>


          <nav data-pjax="#js-repo-pjax-container" aria-label="Repository" data-view-component="true" class="js-repo-nav js-sidenav-container-pjax js-responsive-underlinenav overflow-hidden UnderlineNav px-3 px-md-4 px-lg-5">

  <ul data-view-component="true" class="UnderlineNav-body list-style-none">
      <li data-view-component="true" class="d-inline-flex">
  <a id="code-tab" href="/cplusplus/draft" data-tab-item="i0code-tab" data-selected-links="repo_source repo_downloads repo_commits repo_releases repo_tags repo_branches repo_packages repo_deployments repo_attestations /cplusplus/draft" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g c" data-analytics-event="{&quot;category&quot;:&quot;Underline navbar&quot;,&quot;action&quot;:&quot;Click tab&quot;,&quot;label&quot;:&quot;Code&quot;,&quot;target&quot;:&quot;UNDERLINE_NAV.TAB&quot;}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item">
    
              <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code UnderlineNav-octicon d-none d-sm-inline">
    <path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path>
</svg>
        <span data-content="Code">Code</span>
          <span id="code-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="Not available" data-view-component="true" class="Counter"></span>


    
</a></li>
      <li data-view-component="true" class="d-inline-flex">
  <a id="issues-tab" href="/cplusplus/draft/issues" data-tab-item="i1issues-tab" data-selected-links="repo_issues repo_labels repo_milestones /cplusplus/draft/issues" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g i" data-analytics-event="{&quot;category&quot;:&quot;Underline navbar&quot;,&quot;action&quot;:&quot;Click tab&quot;,&quot;label&quot;:&quot;Issues&quot;,&quot;target&quot;:&quot;UNDERLINE_NAV.TAB&quot;}" aria-current="page" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item selected">
    
              <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-issue-opened UnderlineNav-octicon d-none d-sm-inline">
    <path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path>
</svg>
        <span data-content="Issues">Issues</span>
          <span id="issues-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="685" data-view-component="true" class="Counter">685</span>


    
</a></li>
      <li data-view-component="true" class="d-inline-flex">
  <a id="pull-requests-tab" href="/cplusplus/draft/pulls" data-tab-item="i2pull-requests-tab" data-selected-links="repo_pulls checks /cplusplus/draft/pulls" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g p" data-analytics-event="{&quot;category&quot;:&quot;Underline navbar&quot;,&quot;action&quot;:&quot;Click tab&quot;,&quot;label&quot;:&quot;Pull requests&quot;,&quot;target&quot;:&quot;UNDERLINE_NAV.TAB&quot;}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item">
    
              <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-git-pull-request UnderlineNav-octicon d-none d-sm-inline">
    <path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354ZM3.75 2.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm0 9.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm8.25.75a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Z"></path>
</svg>
        <span data-content="Pull requests">Pull requests</span>
          <span id="pull-requests-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="298" data-view-component="true" class="Counter">298</span>


    
</a></li>
      <li data-view-component="true" class="d-inline-flex">
  <a id="actions-tab" href="/cplusplus/draft/actions" data-tab-item="i3actions-tab" data-selected-links="repo_actions /cplusplus/draft/actions" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g a" data-analytics-event="{&quot;category&quot;:&quot;Underline navbar&quot;,&quot;action&quot;:&quot;Click tab&quot;,&quot;label&quot;:&quot;Actions&quot;,&quot;target&quot;:&quot;UNDERLINE_NAV.TAB&quot;}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item">
    
              <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-play UnderlineNav-octicon d-none d-sm-inline">
    <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm4.879-2.773 4.264 2.559a.25.25 0 0 1 0 .428l-4.264 2.559A.25.25 0 0 1 6 10.559V5.442a.25.25 0 0 1 .379-.215Z"></path>
</svg>
        <span data-content="Actions">Actions</span>
          <span id="actions-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="Not available" data-view-component="true" class="Counter"></span>


    
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Furthermore, after the amending of https://github.com/cplusplus/draft/pull/4737, this issue seems to become more obscure.","author":{"url":"https://github.com/xmh0511","@type":"Person","name":"xmh0511"},"datePublished":"2021-08-24T02:20:29.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/4837/draft/issues/4837"},"preloadedQueries":[{"queryId":"cee21fcf82c877ad153a2db35b36eb94","queryName":"IssueViewerViewQuery","variables":{"count":15,"id":"repository","number":4837,"owner":"cplusplus","repo":"draft"},"result":{"data":{"repository":{"isOwnerEnterpriseManaged":false,"issue":{"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","updatedAt":"2021-08-30T07:17:34Z","title":"Is the constructor call a prvalue and what's the type of it?","number":4837,"repository":{"nameWithOwner":"cplusplus/draft","id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","login":"cplusplus","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","url":"https://github.com/cplusplus","databaseId":59276},"isArchived":false,"isPrivate":false,"databaseId":2216249,"slashCommandsEnabled":false,"visibility":"PUBLIC","viewerCanPush":false,"viewerCanInteract":false,"viewerInteractionLimitReasonHTML":"","planFeatures":{"maximumAssignees":10},"isCopilotAgentEnabled":null,"pinnedIssues":{"totalCount":0},"viewerCanPinIssues":false,"viewerIssueCreationPermissions":{"triageable":false},"issueTypes":{"edges":[{"node":{"id":"IT_kwDN54zOAAFvmw"}},{"node":{"id":"IT_kwDN54zOAAFvnQ"}},{"node":{"id":"IT_kwDN54zOAAFvog"}}]}},"titleHTML":"Is the constructor call a prvalue and what's the type of it?","url":"https://github.com/cplusplus/draft/issues/4837","viewerCanUpdateNext":false,"issueType":null,"state":"CLOSED","stateReason":"COMPLETED","duplicateOf":null,"linkedPullRequests":{"nodes":[]},"subIssuesSummary":{"total":0,"completed":0},"__isLabelable":"Issue","labels":{"edges":[],"pageInfo":{"endCursor":null,"hasNextPage":false}},"__isNode":"Issue","assignedActors":{"nodes":[]},"milestone":null,"databaseId":977637441,"viewerDidAuthor":false,"locked":false,"author":{"__typename":"User","__isActor":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx","profileUrl":"https://github.com/xmh0511","avatarUrl":"https://avatars.githubusercontent.com/u/17973891?u=4644fae26cfb3747712a5956cb193f4067b86016\u0026v=4"},"__isComment":"Issue","body":"[intro.execution] p5\r\n\u003e If a language construct is defined to produce an implicit call of a function, a use of the language construct is considered to be **an expression** for the purposes of this definition. \r\n\r\nHence, the implicit call of a constructor should be considered as an expression. \r\n\r\n[class.ctor.general] p2\r\n\u003e A constructor is used to initialize objects of its class type.\r\n\r\nAs well, some rules in the standard also imply a constructor call is used to initialize an object, such as  \r\n\u003e If overload resolution is successful, the selected constructor is called to initialize the object, with the initializer expression or expression-list as its argument(s).  \r\n\r\nHence, the constructor call should be categorized to prvalue as per [basic.lval] p1\r\n\u003e A prvalue is **an expression whose evaluation initializes an object** or computes the value of an operand of an operator, as specified by the context in which it appears, or an expression that has type cv void.  \r\n\r\nHowever, in the current standard, there is no common rule that phrases what's the type of a constructor call(i.e. what's the type of that prvalue).  Furthermore, after the amending of https://github.com/cplusplus/draft/pull/4737, this issue seems to become more obscure.","bodyHTML":"\u003cp dir=\"auto\"\u003e[intro.execution] p5\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eIf a language construct is defined to produce an implicit call of a function, a use of the language construct is considered to be \u003cstrong\u003ean expression\u003c/strong\u003e for the purposes of this definition.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eHence, the implicit call of a constructor should be considered as an expression.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e[class.ctor.general] p2\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eA constructor is used to initialize objects of its class type.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eAs well, some rules in the standard also imply a constructor call is used to initialize an object, such as\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eIf overload resolution is successful, the selected constructor is called to initialize the object, with the initializer expression or expression-list as its argument(s).\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eHence, the constructor call should be categorized to prvalue as per [basic.lval] p1\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eA prvalue is \u003cstrong\u003ean expression whose evaluation initializes an object\u003c/strong\u003e or computes the value of an operand of an operator, as specified by the context in which it appears, or an expression that has type cv void.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eHowever, in the current standard, there is no common rule that phrases what's the type of a constructor call(i.e. what's the type of that prvalue).  Furthermore, after the amending of \u003ca class=\"issue-link js-issue-link\" data-error-text=\"Failed to load title\" data-id=\"937381171\" data-permission-text=\"Title is private\" data-url=\"https://github.com/cplusplus/draft/issues/4737\" data-hovercard-type=\"pull_request\" data-hovercard-url=\"/cplusplus/draft/pull/4737/hovercard\" href=\"https://github.com/cplusplus/draft/pull/4737\"\u003e#4737\u003c/a\u003e, this issue seems to become more obscure.\u003c/p\u003e","bodyVersion":"49f49adac3d9c70c60e8aa9f7583c5c98f305318d37bd42775bda0a4e0debceb","createdAt":"2021-08-24T02:20:29Z","__isReactable":"Issue","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"viewerCanUpdateMetadata":false,"viewerCanComment":false,"viewerCanAssign":false,"viewerCanLabel":false,"__isIssueOrPullRequest":"Issue","projectItemsNext":{"edges":[],"pageInfo":{"endCursor":null,"hasNextPage":false}},"viewerCanSetMilestone":false,"isPinned":false,"viewerCanDelete":false,"viewerCanTransfer":false,"viewerCanConvertToDiscussion":false,"viewerCanLock":false,"viewerCanType":false,"viewerCanSetFields":false,"issueFieldValues":{"nodes":[]},"frontTimelineItems":{"pageInfo":{"hasNextPage":false,"endCursor":"Y3Vyc29yOnYyOpPPAAABe5-kSIgCqjExMzI0NTMwOTE="},"totalCount":10,"edges":[{"node":{"__typename":"RenamedTitleEvent","__isIssueTimelineItems":"RenamedTitleEvent","__isTimelineEvent":"RenamedTitleEvent","databaseId":5203782739,"createdAt":"2021-08-25T01:26:29Z","actor":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx","__isActor":"User","avatarUrl":"https://avatars.githubusercontent.com/u/17973891?s=64\u0026u=4644fae26cfb3747712a5956cb193f4067b86016\u0026v=4","profileResourcePath":"/xmh0511"},"currentTitle":"Is the constructor call a prvalue and what's the type of it?","previousTitle":"Is a constructor call a prvalue?","__isNode":"RenamedTitleEvent","id":"MDE3OlJlbmFtZWRUaXRsZUV2ZW50NTIwMzc4MjczOQ=="},"cursor":"Y3Vyc29yOnYyOpPPAAABe3rqbYgBqjUyMDM3ODI3Mzk="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":907805171,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"frederick-vs-ja","avatarUrl":"https://avatars.githubusercontent.com/u/23228989?v=4","profileUrl":"https://github.com/frederick-vs-ja","id":"MDQ6VXNlcjIzMjI4OTg5"},"id":"IC_kwDOACHROc42HAHz","body":"IMHO the item \"expression\" used in [intro.execution] p5 is only used for definition of full-expression.\r\nSo, according to the definition of \"_expression_\" (in [expr.comma] p1), a constructor call is not itself an expression (in the general meaning among the standard), and hence doesn't have type and value category.\r\n\r\nHowever, one can argue that the definition in [expr.comma] p1 is the definition of the grammar production. The \"definition\" of \"expression\" looks like the sentence in [expr.pre] p1 (which also excludes constructor calls), but it's in a non-normative note.","bodyHTML":"\u003cp dir=\"auto\"\u003eIMHO the item \"expression\" used in [intro.execution] p5 is only used for definition of full-expression.\u003cbr\u003e\nSo, according to the definition of \"\u003cem\u003eexpression\u003c/em\u003e\" (in [expr.comma] p1), a constructor call is not itself an expression (in the general meaning among the standard), and hence doesn't have type and value category.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eHowever, one can argue that the definition in [expr.comma] p1 is the definition of the grammar production. The \"definition\" of \"expression\" looks like the sentence in [expr.pre] p1 (which also excludes constructor calls), but it's in a non-normative note.\u003c/p\u003e","bodyVersion":"90369f1f1c9efa9a9b15e7c44f0d93f782fd8f92182b6b1e7944d218d09c5684","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-907805171","createdAt":"2021-08-29T14:53:36Z","authorAssociation":"CONTRIBUTOR","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":null,"lastUserContentEdit":null,"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5JmzYAAqTkwNzgwNTE3MQ=="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":907818894,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"jensmaurer","avatarUrl":"https://avatars.githubusercontent.com/u/23412755?v=4","profileUrl":"https://github.com/jensmaurer","id":"MDQ6VXNlcjIzNDEyNzU1"},"id":"IC_kwDOACHROc42HDeO","body":"Note \"is considered to be an expression for the purposes of this definition.\"\r\n\r\nSo, this only refers to \"this definition\", which is the definition of \"full-expression\".\r\n\r\nA constructor call is always caused by some language construct, e.g. an explicit type conversion, and I believe we do specify the value category in those situations. (If there is anything amiss, please be specific.)\r\n\r\nI don't see a defect  here.","bodyHTML":"\u003cp dir=\"auto\"\u003eNote \"is considered to be an expression for the purposes of this definition.\"\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eSo, this only refers to \"this definition\", which is the definition of \"full-expression\".\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eA constructor call is always caused by some language construct, e.g. an explicit type conversion, and I believe we do specify the value category in those situations. (If there is anything amiss, please be specific.)\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eI don't see a defect  here.\u003c/p\u003e","bodyVersion":"e82a9b54f5519653d0a064407d58cd88ca99024a8d33debdb62ca983cb4f70c9","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-907818894","createdAt":"2021-08-29T16:11:16Z","authorAssociation":"MEMBER","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":null,"lastUserContentEdit":null,"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":1,"nodes":[{"__typename":"User","login":"frederick-vs-ja","__isNode":"User","id":"MDQ6VXNlcjIzMjI4OTg5"}]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5Kt6KAAqTkwNzgxODg5NA=="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":907970228,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"xmh0511","avatarUrl":"https://avatars.githubusercontent.com/u/17973891?u=4644fae26cfb3747712a5956cb193f4067b86016\u0026v=4","profileUrl":"https://github.com/xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"IC_kwDOACHROc42Hoa0","body":"@jensmaurer  Consider this example\r\n````cpp\r\nstruct A{\r\n  A() = default;\r\n  A(int){}\r\n};\r\nA t = A(0);  //#1\r\n````\r\nAccording to [expr.type.conv#2], [expr.cast], `A(0)` is equivalent to  `static_cast\u003cA\u003e(0)`, and  as per [expr.static.cast#4]\r\n\u003e Otherwise, the result object is direct-initialized from E.  \r\n\r\nthe initialization occurs in `#1` is ultimately equivalent to as if it is that\r\n````cpp\r\nA t(0);\r\n````\r\nWe do specify the value category and type for the expression `static_cast\u003cA\u003e(0)`, however, we do not specify these properties for the constructor call whose evaluation actually initialized the result object, in the context of that *the result object is direct-initialized from E*. I believe, the constructor call for `A::A(int)` certainly occurs in the full-expression, which can be considered as an expression.","bodyHTML":"\u003cp dir=\"auto\"\u003e\u003ca class=\"user-mention notranslate\" data-hovercard-type=\"user\" data-hovercard-url=\"/users/jensmaurer/hovercard\" data-octo-click=\"hovercard-link-click\" data-octo-dimensions=\"link_type:self\" href=\"https://github.com/jensmaurer\"\u003e@jensmaurer\u003c/a\u003e  Consider this example\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"struct A{\n  A() = default;\n  A(int){}\n};\nA t = A(0);  //#1\"\u003e\u003cpre class=\"notranslate\"\u003e\u003cspan class=\"pl-k\"\u003estruct\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eA\u003c/span\u003e{\n  \u003cspan class=\"pl-en\"\u003eA\u003c/span\u003e() = \u003cspan class=\"pl-k\"\u003edefault\u003c/span\u003e;\n  \u003cspan class=\"pl-en\"\u003eA\u003c/span\u003e(\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e){}\n};\nA t = A(\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e);  \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e//\u003c/span\u003e#1\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAccording to [expr.type.conv#2], [expr.cast], \u003ccode class=\"notranslate\"\u003eA(0)\u003c/code\u003e is equivalent to  \u003ccode class=\"notranslate\"\u003estatic_cast\u0026lt;A\u0026gt;(0)\u003c/code\u003e, and  as per [expr.static.cast#4]\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eOtherwise, the result object is direct-initialized from E.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003ethe initialization occurs in \u003ccode class=\"notranslate\"\u003e#1\u003c/code\u003e is ultimately equivalent to as if it is that\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"A t(0);\"\u003e\u003cpre class=\"notranslate\"\u003eA \u003cspan class=\"pl-en\"\u003et\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e);\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWe do specify the value category and type for the expression \u003ccode class=\"notranslate\"\u003estatic_cast\u0026lt;A\u0026gt;(0)\u003c/code\u003e, however, we do not specify these properties for the constructor call whose evaluation actually initialized the result object, in the context of that \u003cem\u003ethe result object is direct-initialized from E\u003c/em\u003e. I believe, the constructor call for \u003ccode class=\"notranslate\"\u003eA::A(int)\u003c/code\u003e certainly occurs in the full-expression, which can be considered as an expression.\u003c/p\u003e","bodyVersion":"1b431a4d7e141ad404b87fd7fba7ff620b56ed32447d529b903e7668cd709b25","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-907970228","createdAt":"2021-08-30T02:49:28Z","authorAssociation":"CONTRIBUTOR","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":"2021-08-30T02:54:39Z","lastUserContentEdit":{"editor":{"__typename":"User","url":"https://github.com/xmh0511","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDE1OlVzZXJDb250ZW50RWRpdElzc3VlQ29tbWVudEVkaXQ6NDkyNzU5ODMx"},"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5T2MsAAqTkwNzk3MDIyOA=="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":908060223,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"jensmaurer","avatarUrl":"https://avatars.githubusercontent.com/u/23412755?v=4","profileUrl":"https://github.com/jensmaurer","id":"MDQ6VXNlcjIzNDEyNzU1"},"id":"IC_kwDOACHROc42H-Y_","body":"Again, the mention of expression near the full-expression definition is just for the purposes of defining full-expression, and the wording says so.\r\n\r\nIn your example above, the value category is only relevant for the expressions `0` and `A(0)` (and those value categories are well-specified); everywhere else, we don't syntactically have an _expression_ and we never ask for the value category. Thus, it doesn't matter what value category a constructor call is.","bodyHTML":"\u003cp dir=\"auto\"\u003eAgain, the mention of expression near the full-expression definition is just for the purposes of defining full-expression, and the wording says so.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIn your example above, the value category is only relevant for the expressions \u003ccode class=\"notranslate\"\u003e0\u003c/code\u003e and \u003ccode class=\"notranslate\"\u003eA(0)\u003c/code\u003e (and those value categories are well-specified); everywhere else, we don't syntactically have an \u003cem\u003eexpression\u003c/em\u003e and we never ask for the value category. Thus, it doesn't matter what value category a constructor call is.\u003c/p\u003e","bodyVersion":"fd336c20b290bdf01a34f1295fe1afb4783308c433494693bb229357a1fef82a","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-908060223","createdAt":"2021-08-30T06:12:45Z","authorAssociation":"MEMBER","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":null,"lastUserContentEdit":null,"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5WwT0gAqTkwODA2MDIyMw=="},{"node":{"__typename":"ClosedEvent","__isIssueTimelineItems":"ClosedEvent","__isTimelineEvent":"ClosedEvent","databaseId":5224185928,"createdAt":"2021-08-30T06:12:45Z","actor":{"__typename":"User","login":"jensmaurer","id":"MDQ6VXNlcjIzNDEyNzU1","__isActor":"User","avatarUrl":"https://avatars.githubusercontent.com/u/23412755?s=64\u0026v=4","profileResourcePath":"/jensmaurer"},"stateReason":"COMPLETED","duplicateOf":null,"closingProjectItemStatus":null,"closer":null,"__isNode":"ClosedEvent","id":"MDExOkNsb3NlZEV2ZW50NTIyNDE4NTkyOA=="},"cursor":"Y3Vyc29yOnYyOpPPAAABe5WwT0gBqjUyMjQxODU5Mjg="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":908067394,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"xmh0511","avatarUrl":"https://avatars.githubusercontent.com/u/17973891?u=4644fae26cfb3747712a5956cb193f4067b86016\u0026v=4","profileUrl":"https://github.com/xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"IC_kwDOACHROc42IAJC","body":"@jensmaurer  Assume we're checking whether the full-expression of the initialization is a **constant expression**\r\n\r\nThe constant expression is defined as\r\n\u003e A constant expression is either a glvalue core constant expression that..., or a prvalue core constant expression whose value satisfies the following constraints.\r\n\r\nIn the above example, if we modify `A(int){}` to `constexpr A(int){}`, I wonder whether the constant expression is a glvalue or pralue, what stuff determines the value category of the constant expression?","bodyHTML":"\u003cp dir=\"auto\"\u003e\u003ca class=\"user-mention notranslate\" data-hovercard-type=\"user\" data-hovercard-url=\"/users/jensmaurer/hovercard\" data-octo-click=\"hovercard-link-click\" data-octo-dimensions=\"link_type:self\" href=\"https://github.com/jensmaurer\"\u003e@jensmaurer\u003c/a\u003e  Assume we're checking whether the full-expression of the initialization is a \u003cstrong\u003econstant expression\u003c/strong\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThe constant expression is defined as\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eA constant expression is either a glvalue core constant expression that..., or a prvalue core constant expression whose value satisfies the following constraints.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eIn the above example, if we modify \u003ccode class=\"notranslate\"\u003eA(int){}\u003c/code\u003e to \u003ccode class=\"notranslate\"\u003econstexpr A(int){}\u003c/code\u003e, I wonder whether the constant expression is a glvalue or pralue, what stuff determines the value category of the constant expression?\u003c/p\u003e","bodyVersion":"bda707cdac0b9950d074d05011bd9f10e0d91a6618fcc8d664be4ddd6ead4bcd","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-908067394","createdAt":"2021-08-30T06:27:14Z","authorAssociation":"CONTRIBUTOR","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":null,"lastUserContentEdit":null,"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5W9kdAAqTkwODA2NzM5NA=="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":908090972,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"jensmaurer","avatarUrl":"https://avatars.githubusercontent.com/u/23412755?v=4","profileUrl":"https://github.com/jensmaurer","id":"MDQ6VXNlcjIzNDEyNzU1"},"id":"IC_kwDOACHROc42IF5c","body":"Which \"the constant expression\"? Which expression are you looking at?","bodyHTML":"\u003cp dir=\"auto\"\u003eWhich \"the constant expression\"? Which expression are you looking at?\u003c/p\u003e","bodyVersion":"a73292c93f92c23c9cc8b106aaf7998223e28d1284caf6ececa5b05f2904f0a7","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-908090972","createdAt":"2021-08-30T07:09:15Z","authorAssociation":"MEMBER","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":null,"lastUserContentEdit":null,"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5XkCXgAqTkwODA5MDk3Mg=="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":908096967,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"MDU6SXNzdWU5Nzc2Mzc0NDE=","number":4837,"locked":false,"databaseId":977637441},"author":{"__typename":"User","login":"xmh0511","avatarUrl":"https://avatars.githubusercontent.com/u/17973891?u=4644fae26cfb3747712a5956cb193f4067b86016\u0026v=4","profileUrl":"https://github.com/xmh0511","id":"MDQ6VXNlcjE3OTczODkx"},"id":"IC_kwDOACHROc42IHXH","body":"````cpp\r\nstruct A{\r\n  A() = default;\r\n  constexpr A(int){}\r\n};\r\nconstexpr A t = A(0);  //#1\r\n````\r\nAccording to [dcl.constexpr] p10, the full-expression of the initialization at `#1` shall be a constant expression. That means the constant expression is either a glvalue core const expression or prvalue core constant expression that satisfies the requirements, respectively. In this case, what stuff determines the value category of the \"full-expression of the initialization\"? \r\n","bodyHTML":"\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"struct A{\n  A() = default;\n  constexpr A(int){}\n};\nconstexpr A t = A(0);  //#1\"\u003e\u003cpre class=\"notranslate\"\u003e\u003cspan class=\"pl-k\"\u003estruct\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eA\u003c/span\u003e{\n  \u003cspan class=\"pl-en\"\u003eA\u003c/span\u003e() = \u003cspan class=\"pl-k\"\u003edefault\u003c/span\u003e;\n  \u003cspan class=\"pl-k\"\u003econstexpr\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eA\u003c/span\u003e(\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e){}\n};\n\u003cspan class=\"pl-k\"\u003econstexpr\u003c/span\u003e A t = A(\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e);  \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e//\u003c/span\u003e#1\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAccording to [dcl.constexpr] p10, the full-expression of the initialization at \u003ccode class=\"notranslate\"\u003e#1\u003c/code\u003e shall be a constant expression. That means the constant expression is either a glvalue core const expression or prvalue core constant expression that satisfies the requirements, respectively. In this case, what stuff determines the value category of the \"full-expression of the initialization\"?\u003c/p\u003e","bodyVersion":"aedf8a5153588ffbada6b5806f9dd168136935e1807ed505c6c8c340fcd446b4","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/4837#issuecomment-908096967","createdAt":"2021-08-30T07:17:34Z","authorAssociation":"CONTRIBUTOR","viewerCanDelete":false,"viewerCanMinimize":false,"viewerCanUnminimize":false,"viewerCanReport":false,"viewerCanReportToMaintainer":false,"viewerCanBlockFromOrg":false,"viewerCanUnblockFromOrg":false,"viaApp":null,"isHidden":false,"minimizedReason":null,"showSpammyBadge":false,"createdViaEmail":false,"authorToRepoOwnerSponsorship":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","owner":{"__typename":"Organization","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2","login":"cplusplus","url":"https://github.com/cplusplus"},"isPrivate":false,"slashCommandsEnabled":false,"nameWithOwner":"cplusplus/draft","databaseId":2216249},"__isComment":"IssueComment","viewerCanReadUserContentEdits":true,"lastEditedAt":null,"lastUserContentEdit":null,"__isReactable":"IssueComment","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"THUMBS_DOWN","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"LAUGH","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HOORAY","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"CONFUSED","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"HEART","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"ROCKET","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}},{"content":"EYES","viewerHasReacted":false,"reactors":{"totalCount":0,"nodes":[]}}],"__isNode":"IssueComment"},"cursor":"Y3Vyc29yOnYyOpPPAAABe5XrprAAqTkwODA5Njk2Nw=="},{"node":{"__typename":"CrossReferencedEvent","__isIssueTimelineItems":"CrossReferencedEvent","__isTimelineEvent":"CrossReferencedEvent","databaseId":1132453091,"createdAt":"2021-09-01T04:35:49Z","actor":{"__typename":"User","login":"frederick-vs-ja","id":"MDQ6VXNlcjIzMjI4OTg5","__isActor":"User","avatarUrl":"https://avatars.githubusercontent.com/u/23228989?s=64\u0026v=4","profileResourcePath":"/frederick-vs-ja"},"source":{"__typename":"Issue","__isNode":"Issue","id":"MDU6SXNzdWU5ODQ2MDY1MzY="},"willCloseTarget":false,"referencedAt":"2021-09-01T04:35:49Z","innerSource":{"__typename":"Issue","__isReferencedSubject":"Issue","id":"MDU6SXNzdWU5ODQ2MDY1MzY=","issueTitleHTML":"[dcl.constexpr] A full-expression of initialization of a variable may be not an expression CWG3009","url":"https://github.com/cplusplus/draft/issues/4852","number":4852,"stateReason":null,"repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","name":"draft","isPrivate":false,"owner":{"__typename":"Organization","login":"cplusplus","id":"MDEyOk9yZ2FuaXphdGlvbjU5Mjc2"}},"__isNode":"Issue"},"__isNode":"CrossReferencedEvent","id":"MDIwOkNyb3NzUmVmZXJlbmNlZEV2ZW50MTEzMjQ1MzA5MQ=="},"cursor":"Y3Vyc29yOnYyOpPPAAABe5-kSIgCqjExMzI0NTMwOTE="}]},"backTimelineItems":{"pageInfo":{"hasPreviousPage":true,"startCursor":null},"totalCount":10,"edges":[]}},"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5"},"safeViewer":null}},"timestamp":1759108901}]},"title":null,"appPayload":{"initial_view_content":{"team_id":null,"can_edit_view":true},"current_user":null,"current_user_settings":{"preferred_emoji_skin_tone":null,"copilot_show_functionality":false,"use_single_key_shortcut":false},"paste_url_link_as_plain_text":false,"base_avatar_url":"https://avatars.githubusercontent.com","help_url":"https://docs.github.com","sso_organizations":null,"current_sso_orgs_match_dismissed_cookie":null,"multi_tenant":false,"tracing":false,"tracing_flamegraph":false,"catalog_service":"github/issues","scoped_repository":{"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5","owner":"cplusplus","name":"draft","is_archived":false},"enabled_features":{"use_pull_request_subscriptions_enabled":false,"pull_request_single_subscription":true,"disable_issues_react_ssr":false,"issue_dependencies":true,"copilot_natural_language_github_search":false,"private_avatars":false,"reserved_domain":true,"projects_classic_sunset_override":false,"issues_react_bypass_es_limits":true,"notifyd_issue_watch_activity_notify":false,"notifyd_enable_issue_thread_subscriptions":false,"timeline_best_effort_count_optimization":false,"copilot_auto_assign_metadata":false,"issues_react_bots_timeline_pagination":true,"copilot_workspace_cross_repo_selection":false,"copilot_agent_mode":true,"issues_react_force_turbo_nav":false,"copilot_swe_agent":true,"copilot_workspace":null,"tasklist_block":false,"issues_react_perf_test":false}}}</script>
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</style><!--$--><!--$--><div class="Box-sc-g0xbh4-0 gjuRkX"><div class="primary-viewer IssueDetail-module__IssueDetailContainer--h6eYv" data-testid="issue-viewer-container"><!--$--><div class="IssueViewer-module__issueViewerContainer--C18gM IssueViewer-module__mainContainer--PhquW"><!--$--><div class="Box-sc-g0xbh4-0 ContentWrapper-module__contentContainer--AGolz"><div aria-label="Header" role="region" data-testid="issue-header"><div class="prc-PageHeader-PageHeader-sT1Hp HeaderViewer-module__headerContainer--kkVCB "><div class="prc-PageHeader-TitleArea-jxJZy HeaderViewer-module__PageHeader_TitleArea--RYvOA" data-component="TitleArea" data-size-variant="medium"><h1 class="Box-sc-g0xbh4-0 fdpFjT prc-PageHeader-Title-LKOsd HeaderViewer-module__PageHeader_Title--n_x9h prc-Heading-Heading-6CmGO" data-component="PH_Title" data-hidden="false" style="--custom-font-size:26px,26px,var(--text-title-size-large, 32px),var(--text-title-size-large, 32px)"><bdi class="Box-sc-g0xbh4-0 markdown-title HeaderViewer-module__VerifiedHTMLBox--_DgIv" data-testid="issue-title">Is the constructor call a prvalue and what's the type of it?</bdi> <span class="HeaderViewer-module__issueNumberText--ofQHQ">#4837</span></h1></div><div class="prc-PageHeader-ContextArea-6ykSJ" data-hidden-regular="true"><div class="prc-PageHeader-ContextAreaActions-RTJRk HeaderViewer-module__PageHeader_ContextAreaActions--zjX2m" data-hidden-regular="true"><div class="HeaderMenu-module__menuActionsContainer--Gf9W9"><div class="Box-sc-g0xbh4-0 kIppVx HeaderMenu-module__buttonContainer--Nazjm"><a type="button" href="/login?return_to=" target="_blank" class="prc-Button-ButtonBase-c50BI" data-loading="false" data-no-visuals="true" data-size="medium" data-variant="primary" aria-describedby=":Ria56b:-loading-announcement"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="text" class="prc-Button-Label-pTQ3x">New issue</span></span></a></div><button 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Header-module__stickyObservableBox--GRl72"></div><div class="Header-module__HeaderContentWrapper--WtTMs"><div class="Box-sc-g0xbh4-0 ContentWrapper-module__contentContainer--AGolz"><div class="Header-module__headerSpacer--lQCuP"></div></div></div><div class="Box-sc-g0xbh4-0 ContentWrapper-module__contentContainer--AGolz"><div class="Box-sc-g0xbh4-0 hcXOSJ IssueViewer-module__contentAndSidebarWrapper--KA1nM"><div class="Box-sc-g0xbh4-0 bkzAXF IssueViewer-module__contentArea--IpMnd"><div data-testid="issue-viewer-issue-container"><div class="Box-sc-g0xbh4-0 gRssIw"><a class="Avatar-module__avatarLink--leRdV Avatar-module__avatarOuter--waYVs prc-Link-Link-85e08" href="https://github.com/xmh0511" data-hovercard-url="/users/xmh0511/hovercard" aria-label="@xmh0511&#x27;s profile"><img data-component="Avatar" class="Avatar-module__issueViewerAvatar--LY0E0 prc-Avatar-Avatar-ZRS-m" alt="@xmh0511" width="40" height="40" style="--avatarSize-regular:40px" 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style="--avatarSize-regular:24px" src="https://avatars.githubusercontent.com/u/17973891?u=4644fae26cfb3747712a5956cb193f4067b86016&amp;v=4&amp;size=48" data-testid="github-avatar"/></a></div><div class="ActivityHeader-module__narrowViewportWrapper--k4ncm IssueBodyHeader-module__narrowViewportWrapper--cUGQk"><div class="IssueBodyHeader-module__titleSection--a171Q"><a class="Box-sc-g0xbh4-0 bGcKkD IssueBodyHeaderAuthor-module__authorLoginLink--MsgZJ prc-Link-Link-85e08" href="https://github.com/xmh0511" data-hovercard-url="/users/xmh0511/hovercard" data-testid="issue-body-header-author">xmh0511</a></div><div class="ActivityHeader-module__footer--ssKOW IssueBodyHeader-module__footerSection--R3Cax"><span>opened </span><a class="IssueBodyHeader-module__dateLink--GZfps prc-Link-Link-85e08" href="https://github.com/cplusplus/draft/issues/4837#issue-977637441" data-testid="issue-body-header-link"><relative-time class="sc-aXZVg IssueBodyHeader-module__RelativeTime--LRd7n">on <!-- -->Aug 24, 2021</relative-time></a></div></div><div class="ActivityHeader-module__narrowViewportWrapper--k4ncm IssueBodyHeader-module__actionsWrapper--nZngh"><div class="ActivityHeader-module__edits--WkfqY IssueBodyHeader-module__editsSection--ptNnu"></div><div class="IssueBodyHeader-module__badgesSection--izNBK"><div class="IssueBodyHeader-module__badgeGroup--xiI1A"></div><div class="IssueBodyHeader-module__actionsSection--CZDiB"><button data-component="IconButton" type="button" aria-haspopup="true" aria-expanded="false" tabindex="0" class="prc-Button-ButtonBase-c50BI prc-Button-IconButton-szpyj" data-loading="false" data-no-visuals="true" data-size="small" data-variant="invisible" aria-describedby=":R4ldklmb:-loading-announcement" aria-labelledby=":R3sldklmb:" id=":R4ldklmb:"><svg aria-hidden="true" focusable="false" class="octicon octicon-kebab-horizontal" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3ZM1.5 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Zm13 0a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path></svg></button><span class="prc-TooltipV2-Tooltip-cYMVY" data-direction="s" aria-hidden="true" id=":R3sldklmb:">Issue body actions</span></div></div></div></div></div><div class="IssueBodyViewer-module__IssueBody--Zg6Wy" id="issue-body-viewer" data-testid="issue-body-viewer"><div data-testid="markdown-body" data-team-hovercards-enabled="true" class="markdown-body" data-turbolinks="false"><div class="Box-sc-g0xbh4-0 markdown-body NewMarkdownViewer-module__safe-html-box--dKCgP"><p dir="auto">[intro.execution] p5</p>
<blockquote>
<p dir="auto">If a language construct is defined to produce an implicit call of a function, a use of the language construct is considered to be <strong>an expression</strong> for the purposes of this definition.</p>
</blockquote>
<p dir="auto">Hence, the implicit call of a constructor should be considered as an expression.</p>
<p dir="auto">[class.ctor.general] p2</p>
<blockquote>
<p dir="auto">A constructor is used to initialize objects of its class type.</p>
</blockquote>
<p dir="auto">As well, some rules in the standard also imply a constructor call is used to initialize an object, such as</p>
<blockquote>
<p dir="auto">If overload resolution is successful, the selected constructor is called to initialize the object, with the initializer expression or expression-list as its argument(s).</p>
</blockquote>
<p dir="auto">Hence, the constructor call should be categorized to prvalue as per [basic.lval] p1</p>
<blockquote>
<p dir="auto">A prvalue is <strong>an expression whose evaluation initializes an object</strong> or computes the value of an operand of an operator, as specified by the context in which it appears, or an expression that has type cv void.</p>
</blockquote>
<p dir="auto">However, in the current standard, there is no common rule that phrases what's the type of a constructor call(i.e. what's the type of that prvalue).  Furthermore, after the amending of <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="937381171" data-permission-text="Title is private" data-url="https://github.com/cplusplus/draft/issues/4737" data-hovercard-type="pull_request" data-hovercard-url="/cplusplus/draft/pull/4737/hovercard" href="https://github.com/cplusplus/draft/pull/4737">#4737</a>, this issue seems to become more obscure.</p></div></div><div class="IssueBodyViewer-module__IssueBodyTaskList--xb3uu"><!--$--><div role="toolbar" aria-label="Reactions" class="d-flex gap-1 flex-wrap"></div><!--/$--></div></div></div></div></div></div></div><div data-testid="issue-viewer-comments-container" class="react-comments-container"><div class="IssueViewer-module__commentsContainer--H8wxg"><!--$!--><template></template><div class="issue-timeline-loading-module__delaySkeletonLoad--OE2Lq" data-testid="issue-timeline-loading"><div><div class="CommentLoading-module__CommentLoadingContainer--I9JkW"><div 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class="CommentLoading-module__CommentLoadingContentWrapper--Qd0Vg"><div class="CommentDivider-module__CommentDividerContainer--fCCZA"><div class="Box-sc-g0xbh4-0 HpFDd CommentDivider-module__CommentDividerLeftLine--TwR8y"></div><div class="Box-sc-g0xbh4-0 HpFDd CommentDivider-module__CommentDividerRightLine--_guT1"></div></div><div data-testid="comment-skeleton" class="CommentLoading-module__CommentLoadingCard--QQ_c8"><div class="CommentLoading-module__CommentLoadingHeader--_JjPE"><div height="sm" width="150px" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 jKxfJf gpOnMk"></div></div><div class="CommentLoading-module__CommentLoadingContent--QWS3r"><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU iWDiln"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU bifGfQ"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU bkrQCC"></div><div height="sm" 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class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Assignees</h3></div><span class="Section-module__emptyText--qZ0Bc">No one assigned</span><div class="Section-module__hiddenChildrenContainer--X126P"><ul class="prc-ActionList-ActionList-X4RiC Assignees-module__assigneesList--JFnuE" data-dividers="false" data-variant="full"></ul></div></div></div><div data-testid="sidebar-section" class="Box-sc-g0xbh4-0 bbGjsc Section-module__SectionContainer--bIlEv"><div class="Section-module__headerContentWrapper--OIm9m"><div class="Box-sc-g0xbh4-0 bwxuvd"><h3 class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Labels</h3></div><span class="Section-module__emptyText--qZ0Bc">No labels</span><div class="Section-module__hiddenChildrenContainer--X126P"><div tabindex="-1" data-testid="issue-labels" class="Box-sc-g0xbh4-0 LabelsList-module__labelsListContainer--bS7BO">No labels</div></div></div></div><div data-testid="sidebar-section" class="Box-sc-g0xbh4-0 bbGjsc Section-module__SectionContainer--bIlEv"><div class="Section-module__headerContentWrapper--OIm9m"><div class="Box-sc-g0xbh4-0 bwxuvd"><h3 class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Type</h3></div><span class="Section-module__emptyText--qZ0Bc">No type</span><div class="Section-module__hiddenChildrenContainer--X126P"><div class="TypesSection-module__typeContainer--YI5mY"><div class="IssueType-module__hiddenPlaceholder--nnfV9"></div></div></div></div></div><!--$--><div data-testid="sidebar-projects-section" class="Box-sc-g0xbh4-0 bbGjsc Section-module__SectionContainer--bIlEv"><div class="Section-module__headerContentWrapper--OIm9m"><div class="Box-sc-g0xbh4-0 bwxuvd"><h3 class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Projects</h3></div><span class="Section-module__emptyText--qZ0Bc">No projects</span><div class="Section-module__hiddenChildrenContainer--X126P"><div class="ProjectsSection-module__projectItemsContainer--XwAWz"></div></div></div></div><!--/$--><div data-testid="sidebar-section" class="Box-sc-g0xbh4-0 bbGjsc Section-module__SectionContainer--bIlEv"><div class="Section-module__headerContentWrapper--OIm9m"><div class="Box-sc-g0xbh4-0 bwxuvd"><h3 class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Milestone</h3></div><span class="Section-module__emptyText--qZ0Bc">No milestone</span><div class="Section-module__hiddenChildrenContainer--X126P"><ul class="prc-ActionList-ActionList-X4RiC" data-dividers="false" data-variant="full"><div class="Milestone-module__hiddenPlaceholder--b_yit"></div></ul></div></div></div><!--$--><div data-testid="sidebar-section" class="Box-sc-g0xbh4-0 bbGjsc Section-module__SectionContainer--bIlEv"><div class="Section-module__headerContentWrapper--OIm9m"><div class="Box-sc-g0xbh4-0 bwxuvd"><h3 class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Relationships</h3></div><span class="Section-module__emptyText--qZ0Bc">None yet</span><div class="Section-module__hiddenChildrenContainer--X126P"></div></div></div><div data-testid="sidebar-section" class="Box-sc-g0xbh4-0 bbGjsc Section-module__SectionContainer--bIlEv"><div class="Section-module__headerContentWrapper--OIm9m"><div class="Box-sc-g0xbh4-0 bwxuvd"><h3 class="Box-sc-g0xbh4-0 bpDFns SectionHeader-module__SectionHeaderTitle--TxSJL prc-Heading-Heading-6CmGO">Development</h3></div><span class="Section-module__emptyText--qZ0Bc">No branches or pull requests</span><div class="Section-module__hiddenChildrenContainer--X126P"></div></div></div><!--/$--><h2 class="sr-only prc-Heading-Heading-6CmGO">Issue actions</h2><ul class="prc-ActionList-ActionList-X4RiC OptionsSection-module__ActionListOverrides--DkWge" data-dividers="false" data-variant="full"></ul></div></div></div></div></div></div><!--/$--></div><!--/$--></div></div><!--/$--><!--/$--><script type="application/json" id="__PRIMER_DATA_:R0:__">{"resolvedServerColorMode":"day"}</script></div>
</react-app>
</turbo-frame>




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</turbo-frame>

    </main>
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  </div>

          <footer class="footer pt-8 pb-6 f6 color-fg-muted p-responsive" role="contentinfo" >
  <h2 class='sr-only'>Footer</h2>

  


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          <li class="mx-2">
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  <cookie-consent-link>
    <button
      type="button"
      class="Link--secondary underline-on-hover border-0 p-0 color-bg-transparent"
      data-action="click:cookie-consent-link#showConsentManagement"
      data-analytics-event="{&quot;location&quot;:&quot;footer&quot;,&quot;action&quot;:&quot;cookies&quot;,&quot;context&quot;:&quot;subfooter&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;cookies_link_subfooter_footer&quot;}"
    >
       Manage cookies
    </button>
  </cookie-consent-link>
</li>

<li class="mx-2">
  <cookie-consent-link>
    <button
      type="button"
      class="Link--secondary underline-on-hover border-0 p-0 color-bg-transparent text-left"
      data-action="click:cookie-consent-link#showConsentManagement"
      data-analytics-event="{&quot;location&quot;:&quot;footer&quot;,&quot;action&quot;:&quot;dont_share_info&quot;,&quot;context&quot;:&quot;subfooter&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;label&quot;:&quot;dont_share_info_link_subfooter_footer&quot;}"
    >
      Do not share my personal information
    </button>
  </cookie-consent-link>
</li>

      </ul>
    </nav>
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</footer>



    <ghcc-consent id="ghcc" class="position-fixed bottom-0 left-0" style="z-index: 999999"
      data-locale="en"
      data-initial-cookie-consent-allowed=""
      data-cookie-consent-required="false"
    ></ghcc-consent>




  <div id="ajax-error-message" class="ajax-error-message flash flash-error" hidden>
    <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-alert">
    <path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path>
</svg>
    <button type="button" class="flash-close js-ajax-error-dismiss" aria-label="Dismiss error">
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x">
    <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path>
</svg>
    </button>
    You can’t perform that action at this time.
  </div>

    <template id="site-details-dialog">
  <details class="details-reset details-overlay details-overlay-dark lh-default color-fg-default hx_rsm" open>
    <summary role="button" aria-label="Close dialog"></summary>
    <details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast hx_rsm-dialog hx_rsm-modal">
      <button class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog>
        <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x">
    <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path>
</svg>
      </button>
      <div class="octocat-spinner my-6 js-details-dialog-spinner"></div>
    </details-dialog>
  </details>
</template>

    <div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;">
  <div class="Popover-message Popover-message--bottom-left Popover-message--large Box color-shadow-large" style="width:360px;">
  </div>
</div>

    <template id="snippet-clipboard-copy-button">
  <div class="zeroclipboard-container position-absolute right-0 top-0">
    <clipboard-copy aria-label="Copy" class="ClipboardButton btn js-clipboard-copy m-2 p-0" data-copy-feedback="Copied!" data-tooltip-direction="w">
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon m-2">
    <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path>
</svg>
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none m-2">
    <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path>
</svg>
    </clipboard-copy>
  </div>
</template>
<template id="snippet-clipboard-copy-button-unpositioned">
  <div class="zeroclipboard-container">
    <clipboard-copy aria-label="Copy" class="ClipboardButton btn btn-invisible js-clipboard-copy m-2 p-0 d-flex flex-justify-center flex-items-center" data-copy-feedback="Copied!" data-tooltip-direction="w">
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon">
    <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path>
</svg>
      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none">
    <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path>
</svg>
    </clipboard-copy>
  </div>
</template>




    </div>
    <div id="js-global-screen-reader-notice" class="sr-only mt-n1" aria-live="polite" aria-atomic="true" ></div>
    <div id="js-global-screen-reader-notice-assertive" class="sr-only mt-n1" aria-live="assertive" aria-atomic="true"></div>
  </body>
</html>

