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  <title>[temp.func.order] Making the intent of transformations clearer · Issue #7855 · cplusplus/draft · GitHub</title>



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    <script type="application/ld+json">{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[temp.func.order] Making the intent of transformations clearer","articleBody":"The wording of [[temp.func.order]/3](https://eel.is/c++draft/temp.func.order#3)\n\u003e To produce the transformed template, for each type, constant, type template, variable template, or concept template parameter (including template parameter packs ([temp.variadic]) thereof) synthesize a unique type, value, class template, variable template, or concept, respectively, and substitute it for each occurrence of that parameter in the function type of the template.\n\nis vague and leaves the precise nature of the transformed function type to be easily misunderstood. Consider, for example:\n```cpp\ntemplate \u003ctypename T\u003e\nvoid f(T, typename std::type_identity_t\u003cT\u003e);\n```\nIntuitively, one might expect the transformed function type to be\n```cpp\nvoid (A, A)\n```\nwhere `A` is some unique invented type. However, the intention seems to be that the transformed function type in this case becomes\n```cpp\nvoid (A, B)\n```\nwhere `A` and `B` are distinct invented types. i.e., the transformation performs substitution only, *type-specifier*s that would require template instantiation to resolve are considered to give rise to distinct types of their own.\n\nWe would suggest to add a note of this fact and, ideally, some examples to illustrate this key issue. e.g.:\n```cpp\n#include \u003ctype_traits\u003e\n\ntemplate \u003ctypename T\u003e void f(T, T);                        // #1\ntemplate \u003ctypename T\u003e void f(T, std::type_identity_t\u003cT\u003e);  // #2, less specialized than #1\n\ntemplate \u003ctypename T\u003e using identity_t = T;\ntemplate \u003ctypename T\u003e void f(T, identity_t\u003cT\u003e); // redeclaration of #1\n```\n\nBig thanks to @michael-kenzel for the explanation and the example.","author":{"url":"https://github.com/seha-bot","@type":"Person","name":"seha-bot"},"datePublished":"2025-04-24T12:33:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/7855/draft/issues/7855"}</script> 
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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>
        </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">
        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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</svg>
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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">
      <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-stack color-fg-subtle mr-3">
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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">
      <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-shield-check color-fg-subtle mr-3">
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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>

                      <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;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">
      <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-comment-discussion color-fg-subtle mr-3">
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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="ntebjqh9Z7C2j6_8ATQ0wGSxxUJGNKKlAjnbRL5_NBhHolR-4dREDbC8i1iV-SJwgIcV016T6kDz7MQ-56Jy6w" 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-28ddd4bd-a327-4ee4-bd52-34d0c670c703" 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">
    <path d="M2.343 13.657A8 8 0 1 1 13.658 2.343 8 8 0 0 1 2.343 13.657ZM6.03 4.97a.751.751 0 0 0-1.042.018.751.751 0 0 0-.018 1.042L6.94 8 4.97 9.97a.749.749 0 0 0 .326 1.275.749.749 0 0 0 .734-.215L8 9.06l1.97 1.97a.749.749 0 0 0 1.275-.326.749.749 0 0 0-.215-.734L9.06 8l1.97-1.97a.749.749 0 0 0-.326-1.275.749.749 0 0 0-.734.215L8 6.94Z"></path>
</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="server-icon">
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<template id="globe-icon">
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<template id="device-mobile-icon">
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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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<template id="device-desktop-icon">
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        <div class="position-relative">
                <ul
                  role="listbox"
                  class="ActionListWrap QueryBuilder-ListWrap"
                  aria-label="Suggestions"
                  data-action="
                    combobox-commit:query-builder#comboboxCommit
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                  "
                  data-target="query-builder.resultsList"
                  data-persist-list=false
                  id="query-builder-test-results"
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          <div class="d-flex flex-row color-fg-muted px-3 text-small color-bg-default search-feedback-prompt">
            <a target="_blank" href="https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax" data-view-component="true" class="Link color-fg-accent text-normal ml-2">Search syntax tips</a>            <div class="d-flex flex-1"></div>
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        <div data-view-component="true" class="Overlay-body">        <!-- '"` --><!-- </textarea></xmp> --></option></form><form id="code-search-feedback-form" data-turbo="false" action="/search/feedback" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="49CUdb9WWC2VgiWuDZU9mrpXxUFHVc5oTx98x+/6EEtjW3UQzRqUdae1Ggv30nXDSaXkA4UUV1MNZKWwfxjmhw==" />
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    <custom-scopes data-target="qbsearch-input.customScopesManager">
    
<dialog-helper>
  <dialog data-target="custom-scopes.customScopesModalDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="custom-scopes-dialog" aria-modal="true" aria-labelledby="custom-scopes-dialog-title" aria-describedby="custom-scopes-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll">
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      <button data-close-dialog-id="custom-scopes-dialog" aria-label="Close" aria-label="Close" type="button" data-view-component="true" class="close-button Overlay-closeButton"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x">
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      <scrollable-region data-labelled-by="custom-scopes-dialog-title">
        <div data-view-component="true" class="Overlay-body">        <div data-target="custom-scopes.customScopesModalDialogFlash"></div>

        <div hidden class="create-custom-scope-form" data-target="custom-scopes.createCustomScopeForm">
        <!-- '"` --><!-- </textarea></xmp> --></option></form><form id="custom-scopes-dialog-form" data-turbo="false" action="/search/custom_scopes" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="B3L549PqcXNSIzT4S/D7VX/UkRKDhSMEtiBI9sU3pqWiP1Iqq9QhaUsMsPJaO5c5RcO2bBtCYR9XlIAn/VGlcg==" />
          <div data-target="custom-scopes.customScopesModalDialogFlash"></div>

          <input type="hidden" id="custom_scope_id" name="custom_scope_id" data-target="custom-scopes.customScopesIdField">

          <div class="form-group">
            <label for="custom_scope_name">Name</label>
            <auto-check src="/search/custom_scopes/check_name" required>
              <input
                type="text"
                name="custom_scope_name"
                id="custom_scope_name"
                data-target="custom-scopes.customScopesNameField"
                class="form-control"
                autocomplete="off"
                placeholder="github-ruby"
                required
                maxlength="50">
              <input type="hidden" data-csrf="true" value="ZrR7tHJ7tjDbRGlYBNVRJ/CcnMH5uk7ILOsUHHNDwt+LNbkG3C5mdoT/G8gIvDDVaU3X48lt2uW0xw5ALB5v+Q==" />
            </auto-check>
          </div>

          <div class="form-group">
            <label for="custom_scope_query">Query</label>
            <input
              type="text"
              name="custom_scope_query"
              id="custom_scope_query"
              data-target="custom-scopes.customScopesQueryField"
              class="form-control"
              autocomplete="off"
              placeholder="(repo:mona/a OR repo:mona/b) AND lang:python"
              required
              maxlength="500">
          </div>

          <p class="text-small color-fg-muted">
            To see all available qualifiers, see our <a class="Link--inTextBlock" href="https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax">documentation</a>.
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</form>        </div>

        <div data-target="custom-scopes.manageCustomScopesForm">
          <div data-target="custom-scopes.list"></div>
        </div>

</div>
      </scrollable-region>
      <div data-view-component="true" class="Overlay-footer Overlay-footer--alignEnd Overlay-footer--divided">          <button data-action="click:custom-scopes#customScopesCancel" type="button" data-view-component="true" class="btn">    Cancel
</button>
          <button form="custom-scopes-dialog-form" data-action="click:custom-scopes#customScopesSubmit" data-target="custom-scopes.customScopesSubmitButton" type="submit" data-view-component="true" class="btn-primary btn">    Create saved search
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                data-analytics-event="{&quot;category&quot;:&quot;Marketing nav&quot;,&quot;action&quot;:&quot;click to go to homepage&quot;,&quot;label&quot;:&quot;ref_page:Marketing;ref_cta:Sign in;ref_loc:Header&quot;}"
              >
                Sign in
              </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/7855&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="eb9957ba346dcf1170c562ac294ab3190353799b276ce06085877e171e382f50"
                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-150748a9-5c4e-4ccb-a378-066a47b5f208" aria-labelledby="tooltip-1dd53cb6-6a37-4038-959b-6d65b3330a19" 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-1dd53cb6-6a37-4038-959b-6d65b3330a19" for="icon-button-150748a9-5c4e-4ccb-a378-066a47b5f208" 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-26d0acb9-17f3-455d-ae14-8bfbee292555" aria-labelledby="tooltip-bef81d98-445b-406c-b139-9d8181b217f4" 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-bef81d98-445b-406c-b139-9d8181b217f4" for="icon-button-26d0acb9-17f3-455d-ae14-8bfbee292555" 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/7855&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="4918545b12079b8b15cd3b11a8365f0f84871a1541ae43b88b1a1f5fcbf3d2f9" 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-359e1f24-385b-4145-8805-c0dc6eed9d86" 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/7855&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="27e6535bc07e7af97cfe7656026ef8ab001c14e82dd5116df4fa48195a677e29" 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/7855&quot;,&quot;user_id&quot;:null}}" data-hydro-click-hmac="6f027388e241b53617049cca4ab96960a4fd74066c65e2344f511998bdd4b660" 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>
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Consider, for example:\n```cpp\ntemplate \u003ctypename T\u003e\nvoid f(T, typename std::type_identity_t\u003cT\u003e);\n```\nIntuitively, one might expect the transformed function type to be\n```cpp\nvoid (A, A)\n```\nwhere `A` is some unique invented type. However, the intention seems to be that the transformed function type in this case becomes\n```cpp\nvoid (A, B)\n```\nwhere `A` and `B` are distinct invented types. i.e., the transformation performs substitution only, *type-specifier*s that would require template instantiation to resolve are considered to give rise to distinct types of their own.\n\nWe would suggest to add a note of this fact and, ideally, some examples to illustrate this key issue. e.g.:\n```cpp\n#include \u003ctype_traits\u003e\n\ntemplate \u003ctypename T\u003e void f(T, T);                        // #1\ntemplate \u003ctypename T\u003e void f(T, std::type_identity_t\u003cT\u003e);  // #2, less specialized than #1\n\ntemplate \u003ctypename T\u003e using identity_t = T;\ntemplate \u003ctypename T\u003e void f(T, identity_t\u003cT\u003e); // redeclaration of #1\n```\n\nBig thanks to @michael-kenzel for the explanation and the example.","author":{"url":"https://github.com/seha-bot","@type":"Person","name":"seha-bot"},"datePublished":"2025-04-24T12:33:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/7855/draft/issues/7855"},"preloadedQueries":[{"queryId":"cee21fcf82c877ad153a2db35b36eb94","queryName":"IssueViewerViewQuery","variables":{"count":15,"id":"repository","number":7855,"owner":"cplusplus","repo":"draft"},"result":{"data":{"repository":{"isOwnerEnterpriseManaged":false,"issue":{"id":"I_kwDOACHROc6z1Zvs","updatedAt":"2025-04-26T05:20:49Z","title":"[temp.func.order] Making the intent of transformations clearer","number":7855,"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":"[temp.func.order] Making the intent of transformations clearer","url":"https://github.com/cplusplus/draft/issues/7855","viewerCanUpdateNext":false,"issueType":null,"state":"OPEN","stateReason":null,"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":3017120748,"viewerDidAuthor":false,"locked":false,"author":{"__typename":"User","__isActor":"User","login":"seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2","profileUrl":"https://github.com/seha-bot","avatarUrl":"https://avatars.githubusercontent.com/u/70074276?u=9fc76a968a48090c92d3c86d1e3d738dba7d8669\u0026v=4"},"__isComment":"Issue","body":"The wording of [[temp.func.order]/3](https://eel.is/c++draft/temp.func.order#3)\n\u003e To produce the transformed template, for each type, constant, type template, variable template, or concept template parameter (including template parameter packs ([temp.variadic]) thereof) synthesize a unique type, value, class template, variable template, or concept, respectively, and substitute it for each occurrence of that parameter in the function type of the template.\n\nis vague and leaves the precise nature of the transformed function type to be easily misunderstood. Consider, for example:\n```cpp\ntemplate \u003ctypename T\u003e\nvoid f(T, typename std::type_identity_t\u003cT\u003e);\n```\nIntuitively, one might expect the transformed function type to be\n```cpp\nvoid (A, A)\n```\nwhere `A` is some unique invented type. However, the intention seems to be that the transformed function type in this case becomes\n```cpp\nvoid (A, B)\n```\nwhere `A` and `B` are distinct invented types. i.e., the transformation performs substitution only, *type-specifier*s that would require template instantiation to resolve are considered to give rise to distinct types of their own.\n\nWe would suggest to add a note of this fact and, ideally, some examples to illustrate this key issue. e.g.:\n```cpp\n#include \u003ctype_traits\u003e\n\ntemplate \u003ctypename T\u003e void f(T, T);                        // #1\ntemplate \u003ctypename T\u003e void f(T, std::type_identity_t\u003cT\u003e);  // #2, less specialized than #1\n\ntemplate \u003ctypename T\u003e using identity_t = T;\ntemplate \u003ctypename T\u003e void f(T, identity_t\u003cT\u003e); // redeclaration of #1\n```\n\nBig thanks to @michael-kenzel for the explanation and the example.","bodyHTML":"\u003cp dir=\"auto\"\u003eThe wording of \u003ca href=\"https://eel.is/c++draft/temp.func.order#3\" rel=\"nofollow\"\u003e[temp.func.order]/3\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eTo produce the transformed template, for each type, constant, type template, variable template, or concept template parameter (including template parameter packs ([temp.variadic]) thereof) synthesize a unique type, value, class template, variable template, or concept, respectively, and substitute it for each occurrence of that parameter in the function type of the template.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eis vague and leaves the precise nature of the transformed function type to be easily misunderstood. Consider, for example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"template \u0026lt;typename T\u0026gt;\nvoid f(T, typename std::type_identity_t\u0026lt;T\u0026gt;);\"\u003e\u003cpre class=\"notranslate\"\u003e\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt;\n\u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e(T, \u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e std::\u003cspan class=\"pl-c1\"\u003etype_identity_t\u003c/span\u003e\u0026lt;T\u0026gt;);\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIntuitively, one might expect the transformed function type to be\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"void (A, A)\"\u003e\u003cpre class=\"notranslate\"\u003e\u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e (A, A)\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ewhere \u003ccode class=\"notranslate\"\u003eA\u003c/code\u003e is some unique invented type. However, the intention seems to be that the transformed function type in this case becomes\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"void (A, B)\"\u003e\u003cpre class=\"notranslate\"\u003e\u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e (A, B)\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ewhere \u003ccode class=\"notranslate\"\u003eA\u003c/code\u003e and \u003ccode class=\"notranslate\"\u003eB\u003c/code\u003e are distinct invented types. i.e., the transformation performs substitution only, \u003cem\u003etype-specifier\u003c/em\u003es that would require template instantiation to resolve are considered to give rise to distinct types of their own.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eWe would suggest to add a note of this fact and, ideally, some examples to illustrate this key issue. e.g.:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"#include \u0026lt;type_traits\u0026gt;\n\ntemplate \u0026lt;typename T\u0026gt; void f(T, T);                        // #1\ntemplate \u0026lt;typename T\u0026gt; void f(T, std::type_identity_t\u0026lt;T\u0026gt;);  // #2, less specialized than #1\n\ntemplate \u0026lt;typename T\u0026gt; using identity_t = T;\ntemplate \u0026lt;typename T\u0026gt; void f(T, identity_t\u0026lt;T\u0026gt;); // redeclaration of #1\"\u003e\u003cpre class=\"notranslate\"\u003e#\u003cspan class=\"pl-k\"\u003einclude\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\u003cspan class=\"pl-pds\"\u003e\u0026lt;\u003c/span\u003etype_traits\u003cspan class=\"pl-pds\"\u003e\u0026gt;\u003c/span\u003e\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt; \u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e(T, T);                        \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e//\u003c/span\u003e #1\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt; \u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e(T, std::\u003cspan class=\"pl-c1\"\u003etype_identity_t\u003c/span\u003e\u0026lt;T\u0026gt;);  \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e//\u003c/span\u003e #2, less specialized than #1\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt; \u003cspan class=\"pl-k\"\u003eusing\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003eidentity_t\u003c/span\u003e = T;\n\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt; \u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e(T, \u003cspan class=\"pl-c1\"\u003eidentity_t\u003c/span\u003e\u0026lt;T\u0026gt;); \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e//\u003c/span\u003e redeclaration of #1\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eBig thanks to \u003ca class=\"user-mention notranslate\" data-hovercard-type=\"user\" data-hovercard-url=\"/users/michael-kenzel/hovercard\" data-octo-click=\"hovercard-link-click\" data-octo-dimensions=\"link_type:self\" href=\"https://github.com/michael-kenzel\"\u003e@michael-kenzel\u003c/a\u003e for the explanation and the example.\u003c/p\u003e","bodyVersion":"24767e0bc624492d9147d43bcdcc7a280123115b43d4f9442c5941fc173d46fb","createdAt":"2025-04-24T12:33:28Z","__isReactable":"Issue","reactionGroups":[{"content":"THUMBS_UP","viewerHasReacted":false,"reactors":{"totalCount":1,"nodes":[{"__typename":"User","login":"eisenwave","__isNode":"User","id":"MDQ6VXNlcjIyMDQwOTc2"}]}},{"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":"Y3Vyc29yOnYyOpPPAAABlnCKg4AAqjI4MzE4NjQ3MjQ="},"totalCount":5,"edges":[{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":2829368003,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2"},"id":"I_kwDOACHROc6z1Zvs","number":7855,"locked":false,"databaseId":3017120748},"author":{"__typename":"User","login":"eisenwave","avatarUrl":"https://avatars.githubusercontent.com/u/22040976?u=994fce7dc6d36855c10b74c4567122f09470772a\u0026v=4","profileUrl":"https://github.com/eisenwave","id":"MDQ6VXNlcjIyMDQwOTc2"},"id":"IC_kwDOACHROc6opLrD","body":"I don't see why `#2` would be less specialized than `#1`. If anything, wouldn't it be more specialized? Also, why would either be more or less specialized?\n\nIntuitively, if we synthesizes some types `X` and `Y` for their `T`s and have\n```cpp\n(X, X)\n(Y, std::type_identity_t\u003cY\u003e)\n```\n... then it seems like with either set of parameter types, we could call the other function, and deduction would succeed in the same cases, so neither is more specialized.\n\nPerhaps it would work in the following example:\n```cpp\ntemplate \u003ctypename T\u003e void f(T);\ntemplate \u003ctypename T\u003e void f(std::type_identity_t\u003cT\u003e); // more specialized\n```\nIn any case, it's not obvious to me that the wording is unclear, or that the example would clarify anything. ","bodyHTML":"\u003cp dir=\"auto\"\u003eI don't see why \u003ccode class=\"notranslate\"\u003e#2\u003c/code\u003e would be less specialized than \u003ccode class=\"notranslate\"\u003e#1\u003c/code\u003e. If anything, wouldn't it be more specialized? Also, why would either be more or less specialized?\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIntuitively, if we synthesizes some types \u003ccode class=\"notranslate\"\u003eX\u003c/code\u003e and \u003ccode class=\"notranslate\"\u003eY\u003c/code\u003e for their \u003ccode class=\"notranslate\"\u003eT\u003c/code\u003es and have\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"(X, X)\n(Y, std::type_identity_t\u0026lt;Y\u0026gt;)\"\u003e\u003cpre class=\"notranslate\"\u003e(X, X)\n(Y, std::\u003cspan class=\"pl-c1\"\u003etype_identity_t\u003c/span\u003e\u0026lt;Y\u0026gt;)\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e... then it seems like with either set of parameter types, we could call the other function, and deduction would succeed in the same cases, so neither is more specialized.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003ePerhaps it would work in the following example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"template \u0026lt;typename T\u0026gt; void f(T);\ntemplate \u0026lt;typename T\u0026gt; void f(std::type_identity_t\u0026lt;T\u0026gt;); // more specialized\"\u003e\u003cpre class=\"notranslate\"\u003e\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt; \u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e(T);\n\u003cspan class=\"pl-k\"\u003etemplate \u003c/span\u003e\u0026lt;\u003cspan class=\"pl-k\"\u003etypename\u003c/span\u003e T\u0026gt; \u003cspan class=\"pl-k\"\u003evoid\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e(std::\u003cspan class=\"pl-c1\"\u003etype_identity_t\u003c/span\u003e\u0026lt;T\u0026gt;); \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e//\u003c/span\u003e more specialized\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIn any case, it's not obvious to me that the wording is unclear, or that the example would clarify anything.\u003c/p\u003e","bodyVersion":"4c2219dae22f3db4fada31240d6ef0361604c12e13c47c3b25bd158f34af5b0c","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/7855#issuecomment-2829368003","createdAt":"2025-04-25T04:51:16Z","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":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":"Y3Vyc29yOnYyOpPPAAABlmtJHaAAqjI4MjkzNjgwMDM="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":2830689452,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2"},"id":"I_kwDOACHROc6z1Zvs","number":7855,"locked":false,"databaseId":3017120748},"author":{"__typename":"User","login":"seha-bot","avatarUrl":"https://avatars.githubusercontent.com/u/70074276?u=9fc76a968a48090c92d3c86d1e3d738dba7d8669\u0026v=4","profileUrl":"https://github.com/seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2"},"id":"IC_kwDOACHROc6ouOSs","body":"Here's why we think that `#2` is less specialized than `#1` in the example:\n\nThere are two pairs of original and transformed [[temp.func.order]/3](https://eel.is/c++draft/temp.func.order#3) types P and A here:\n\n1. f1: `(T, T)` and f2: `(Y, std::type_identity_t\u003cY\u003e)`\n2. f2: `(T, std::type_identity_t\u003cT\u003e)` and f1: `(X, X)`\n\n`X` and `Y` are some unique invented types.\n\nIn the first case, deduction fails since it would deduce conflicting arguments for `T` [[temp.deduct.type]/2](https://eel.is/c++draft/temp.deduct.type#2.sentence-3), so f2 is not at least as specialized as f1 [[temp.deduct.partial]/8](https://eel.is/c++draft/temp.deduct.partial#8.sentence-5).\nIn the second case, deduction succeeds since `T` can be deduced from the first argument type. The second parameter type is in a non-deduced context, so it will not affect deduction in this case. Because of that, f1 is at least as specialized as f2.\n\nTherefore, the first overload is more specialized than the second [[temp.deduct.partial]/10](https://eel.is/c++draft/temp.deduct.partial#10).\n\nIn your example it is correct that the second overload is more specialized than the first, but for a different reason. If we were to do the same analysis, there would be no conflicting arguments in the first case and deduction would succeed, and in the second case deduction would fail because the template parameter is only used in a non-deduced context.","bodyHTML":"\u003cp dir=\"auto\"\u003eHere's why we think that \u003ccode class=\"notranslate\"\u003e#2\u003c/code\u003e is less specialized than \u003ccode class=\"notranslate\"\u003e#1\u003c/code\u003e in the example:\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThere are two pairs of original and transformed \u003ca href=\"https://eel.is/c++draft/temp.func.order#3\" rel=\"nofollow\"\u003e[temp.func.order]/3\u003c/a\u003e types P and A here:\u003c/p\u003e\n\u003col dir=\"auto\"\u003e\n\u003cli\u003ef1: \u003ccode class=\"notranslate\"\u003e(T, T)\u003c/code\u003e and f2: \u003ccode class=\"notranslate\"\u003e(Y, std::type_identity_t\u0026lt;Y\u0026gt;)\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003ef2: \u003ccode class=\"notranslate\"\u003e(T, std::type_identity_t\u0026lt;T\u0026gt;)\u003c/code\u003e and f1: \u003ccode class=\"notranslate\"\u003e(X, X)\u003c/code\u003e\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode class=\"notranslate\"\u003eX\u003c/code\u003e and \u003ccode class=\"notranslate\"\u003eY\u003c/code\u003e are some unique invented types.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIn the first case, deduction fails since it would deduce conflicting arguments for \u003ccode class=\"notranslate\"\u003eT\u003c/code\u003e \u003ca href=\"https://eel.is/c++draft/temp.deduct.type#2.sentence-3\" rel=\"nofollow\"\u003e[temp.deduct.type]/2\u003c/a\u003e, so f2 is not at least as specialized as f1 \u003ca href=\"https://eel.is/c++draft/temp.deduct.partial#8.sentence-5\" rel=\"nofollow\"\u003e[temp.deduct.partial]/8\u003c/a\u003e.\u003cbr\u003e\nIn the second case, deduction succeeds since \u003ccode class=\"notranslate\"\u003eT\u003c/code\u003e can be deduced from the first argument type. The second parameter type is in a non-deduced context, so it will not affect deduction in this case. Because of that, f1 is at least as specialized as f2.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eTherefore, the first overload is more specialized than the second \u003ca href=\"https://eel.is/c++draft/temp.deduct.partial#10\" rel=\"nofollow\"\u003e[temp.deduct.partial]/10\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIn your example it is correct that the second overload is more specialized than the first, but for a different reason. If we were to do the same analysis, there would be no conflicting arguments in the first case and deduction would succeed, and in the second case deduction would fail because the template parameter is only used in a non-deduced context.\u003c/p\u003e","bodyVersion":"00112d0bb0789fc9d2551601fabdc505bdf9a85f2e370beb93a7eefe6de277d8","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/7855#issuecomment-2830689452","createdAt":"2025-04-25T15:05:41Z","authorAssociation":"NONE","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":"Y3Vyc29yOnYyOpPPAAABlm17oYgAqjI4MzA2ODk0NTI="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":2831471149,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2"},"id":"I_kwDOACHROc6z1Zvs","number":7855,"locked":false,"databaseId":3017120748},"author":{"__typename":"User","login":"jensmaurer","avatarUrl":"https://avatars.githubusercontent.com/u/23412755?v=4","profileUrl":"https://github.com/jensmaurer","id":"MDQ6VXNlcjIzNDEyNzU1"},"id":"IC_kwDOACHROc6oxNIt","body":"\u003e In the first case, deduction fails since it would deduce conflicting arguments for T\n\nWhy?  The arguments are `(Y, Y)`, since that's what `std::type_identity_t\u003cY\u003e` actually is.  Note that `Y` is (in the model) a unique invented type, and it's not dependent, so we can determine the actual (resulting) type of `std::type_identity_t\u003cY\u003e`.\n\nI've heard some implementations might keep those types dependent, which would explain the difference.","bodyHTML":"\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eIn the first case, deduction fails since it would deduce conflicting arguments for T\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eWhy?  The arguments are \u003ccode class=\"notranslate\"\u003e(Y, Y)\u003c/code\u003e, since that's what \u003ccode class=\"notranslate\"\u003estd::type_identity_t\u0026lt;Y\u0026gt;\u003c/code\u003e actually is.  Note that \u003ccode class=\"notranslate\"\u003eY\u003c/code\u003e is (in the model) a unique invented type, and it's not dependent, so we can determine the actual (resulting) type of \u003ccode class=\"notranslate\"\u003estd::type_identity_t\u0026lt;Y\u0026gt;\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eI've heard some implementations might keep those types dependent, which would explain the difference.\u003c/p\u003e","bodyVersion":"54273ef66be7c0e488c9285dd33f59a91f037975c4c2c42dd02adcd36ec49f6e","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/7855#issuecomment-2831471149","createdAt":"2025-04-25T21:35:04Z","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":"Y3Vyc29yOnYyOpPPAAABlm7gH0AAqjI4MzE0NzExNDk="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":2831586426,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2"},"id":"I_kwDOACHROc6z1Zvs","number":7855,"locked":false,"databaseId":3017120748},"author":{"__typename":"User","login":"michael-kenzel","avatarUrl":"https://avatars.githubusercontent.com/u/15786918?u=a1f0d52b227c28bae918aeea3917bc8baf1788ec\u0026v=4","profileUrl":"https://github.com/michael-kenzel","id":"MDQ6VXNlcjE1Nzg2OTE4"},"id":"IC_kwDOACHROc6oxpR6","body":"\u003e Why? The arguments are `(Y, Y)`, since that's what `std::type_identity_t\u003cY\u003e` actually is. Note that `Y` is (in the model) a unique invented type, and it's not dependent, so we can determine the actual (resulting) type of `std::type_identity_t\u003cY\u003e`.\n\nAs far as my understanding goes, the key here is [[temp.func.order]/3](https://eel.is/c++draft/temp.func.order#3.sentence-1) (emphasis mine):\n\n\u003e To produce the transformed template, for each type, constant, type template, variable template, or concept template parameter (including template parameter packs ([[temp.variadic]](https://eel.is/c++draft/temp.variadic)) thereof) synthesize a unique type, value, class template, variable template, or concept, respectively, **and substitute it for each occurrence of that parameter in the function type of the template**.\n\nThe intention (and what all implementations seem to be doing) appears to be that only substitution into the function type is performed during production of the transformed **template**, no actual type is produced. In particular, no instantiation of any constituent templates takes place. Thus, whether two \"types\" are \"the same\" in this context comes down to purely the structure of the type specifiers rather than what types they actually would resolve to. The fact that the wording talks about a \"transformed template\" rather than a \"transformed type\" may also be a hint in this direction, though [[temp.deduct.partial]](https://eel.is/c++draft/temp.deduct.partial) then refers to both as types rather than templates, except where it doesn't. I believe that \"type\" in this context is taken to mean the type expressed in terms of the template parameters / substituted invented types; at least that's the only way I can make some sense of the wording. From what I could gather, the reasoning behind this seems to be that partial ordering should be decidable solely based on the declarations of the templates themselves. I can only guess that this is to avoid issues to do with what it would actually mean to instantiate random templates with these invented types: What is the nature of these invented types? What are valid uses of them? What happens when an instantiation with such an invented type results in an invalid construct? How would all of this interact with explicit or partial specializations?\n\nAs evidenced by the reactions in this thread, this behavior is highly counter-intuitive and non-obvious from the wording, which is why we think there should at the very least be a note and example to point this out. Ideally, the wording would of course be changed to actually specify this behavior in clear terms.\n\nThis issue seems to also have been brought up before in https://github.com/cplusplus/draft/issues/523 and [CWG 2160](https://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#2160).\n","bodyHTML":"\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eWhy? The arguments are \u003ccode class=\"notranslate\"\u003e(Y, Y)\u003c/code\u003e, since that's what \u003ccode class=\"notranslate\"\u003estd::type_identity_t\u0026lt;Y\u0026gt;\u003c/code\u003e actually is. Note that \u003ccode class=\"notranslate\"\u003eY\u003c/code\u003e is (in the model) a unique invented type, and it's not dependent, so we can determine the actual (resulting) type of \u003ccode class=\"notranslate\"\u003estd::type_identity_t\u0026lt;Y\u0026gt;\u003c/code\u003e.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eAs far as my understanding goes, the key here is \u003ca href=\"https://eel.is/c++draft/temp.func.order#3.sentence-1\" rel=\"nofollow\"\u003e[temp.func.order]/3\u003c/a\u003e (emphasis mine):\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eTo produce the transformed template, for each type, constant, type template, variable template, or concept template parameter (including template parameter packs (\u003ca href=\"https://eel.is/c++draft/temp.variadic\" rel=\"nofollow\"\u003e[temp.variadic]\u003c/a\u003e) thereof) synthesize a unique type, value, class template, variable template, or concept, respectively, \u003cstrong\u003eand substitute it for each occurrence of that parameter in the function type of the template\u003c/strong\u003e.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eThe intention (and what all implementations seem to be doing) appears to be that only substitution into the function type is performed during production of the transformed \u003cstrong\u003etemplate\u003c/strong\u003e, no actual type is produced. In particular, no instantiation of any constituent templates takes place. Thus, whether two \"types\" are \"the same\" in this context comes down to purely the structure of the type specifiers rather than what types they actually would resolve to. The fact that the wording talks about a \"transformed template\" rather than a \"transformed type\" may also be a hint in this direction, though \u003ca href=\"https://eel.is/c++draft/temp.deduct.partial\" rel=\"nofollow\"\u003e[temp.deduct.partial]\u003c/a\u003e then refers to both as types rather than templates, except where it doesn't. I believe that \"type\" in this context is taken to mean the type expressed in terms of the template parameters / substituted invented types; at least that's the only way I can make some sense of the wording. From what I could gather, the reasoning behind this seems to be that partial ordering should be decidable solely based on the declarations of the templates themselves. I can only guess that this is to avoid issues to do with what it would actually mean to instantiate random templates with these invented types: What is the nature of these invented types? What are valid uses of them? What happens when an instantiation with such an invented type results in an invalid construct? How would all of this interact with explicit or partial specializations?\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eAs evidenced by the reactions in this thread, this behavior is highly counter-intuitive and non-obvious from the wording, which is why we think there should at the very least be a note and example to point this out. Ideally, the wording would of course be changed to actually specify this behavior in clear terms.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThis issue seems to also have been brought up before in \u003ca class=\"issue-link js-issue-link\" data-error-text=\"Failed to load title\" data-id=\"95491935\" data-permission-text=\"Title is private\" data-url=\"https://github.com/cplusplus/draft/issues/523\" data-hovercard-type=\"issue\" data-hovercard-url=\"/cplusplus/draft/issues/523/hovercard\" href=\"https://github.com/cplusplus/draft/issues/523\"\u003e#523\u003c/a\u003e and \u003ca href=\"https://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#2160\" rel=\"nofollow\"\u003eCWG 2160\u003c/a\u003e.\u003c/p\u003e","bodyVersion":"404be19af8dd19c6e340f6bf03bbe528b26adeaf557480c3501d049692c34dcd","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/7855#issuecomment-2831586426","createdAt":"2025-04-25T23:13:17Z","authorAssociation":"NONE","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":"2025-04-26T00:22:59Z","lastUserContentEdit":{"editor":{"__typename":"User","url":"https://github.com/michael-kenzel","login":"michael-kenzel","id":"MDQ6VXNlcjE1Nzg2OTE4"},"id":"UCE_lALOACHROc6oxpR6zmTFrSM"},"__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":"Y3Vyc29yOnYyOpPPAAABlm86CsgAqjI4MzE1ODY0MjY="},{"node":{"__typename":"IssueComment","__isIssueTimelineItems":"IssueComment","databaseId":2831864724,"viewerDidAuthor":false,"issue":{"author":{"__typename":"User","login":"seha-bot","id":"MDQ6VXNlcjcwMDc0Mjc2"},"id":"I_kwDOACHROc6z1Zvs","number":7855,"locked":false,"databaseId":3017120748},"author":{"__typename":"User","login":"eisenwave","avatarUrl":"https://avatars.githubusercontent.com/u/22040976?u=994fce7dc6d36855c10b74c4567122f09470772a\u0026v=4","profileUrl":"https://github.com/eisenwave","id":"MDQ6VXNlcjIyMDQwOTc2"},"id":"IC_kwDOACHROc6oytOU","body":"\u003e As evidenced by the reactions in this thread, this behavior is highly counter-intuitive and non-obvious from the wording, which is why we think there should at the very least be a note and example to point this out. Ideally, the wording would of course be changed to actually specify this behavior in clear terms.\n\nYeah, I've checked on CE and all big three compilers implement it so that `(T, std::type_identity_t\u003cT\u003e)` is less specialized, which is surprising.\n\nThis is worth an example.","bodyHTML":"\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003eAs evidenced by the reactions in this thread, this behavior is highly counter-intuitive and non-obvious from the wording, which is why we think there should at the very least be a note and example to point this out. Ideally, the wording would of course be changed to actually specify this behavior in clear terms.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eYeah, I've checked on CE and all big three compilers implement it so that \u003ccode class=\"notranslate\"\u003e(T, std::type_identity_t\u0026lt;T\u0026gt;)\u003c/code\u003e is less specialized, which is surprising.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThis is worth an example.\u003c/p\u003e","bodyVersion":"bb80e2b1f8faf0419d08805b77ea3a1c6ec61facd297d188e36233bdbc2018ea","viewerCanUpdate":false,"url":"https://github.com/cplusplus/draft/issues/7855#issuecomment-2831864724","createdAt":"2025-04-26T05:20:48Z","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":"Y3Vyc29yOnYyOpPPAAABlnCKg4AAqjI4MzE4NjQ3MjQ="}]},"backTimelineItems":{"pageInfo":{"hasPreviousPage":true,"startCursor":null},"totalCount":5,"edges":[]}},"id":"MDEwOlJlcG9zaXRvcnkyMjE2MjQ5"},"safeViewer":null}},"timestamp":1759111588}]},"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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data-testid="issue-body" class="Box-sc-g0xbh4-0 bDlPR react-issue-body" data-hpc="true"><h2 class="sr-only">Description</h2><div class="Box-sc-g0xbh4-0 crMLA-D"><div class="Box-sc-g0xbh4-0 bjwYme"><div class="IssueBodyHeader-module__IssueBodyHeaderContainer--omzzd IssueBodyHeader-module__viewerDidNotAuthor--QE49X"><div class="ActivityHeader-module__activityHeader--WiwzD IssueBodyHeader-module__activityHeaderWrapper--WDoKj"><div class="Box-sc-g0xbh4-0 Avatar-module__avatarInner--leXLe IssueBodyHeader-module__avatarContainer--tVAqx"><a class="Avatar-module__avatarLink--leRdV prc-Link-Link-85e08" href="https://github.com/seha-bot" data-hovercard-url="/users/seha-bot/hovercard" aria-label="@seha-bot&#x27;s profile"><img data-component="Avatar" class="prc-Avatar-Avatar-ZRS-m" alt="@seha-bot" width="24" height="24" style="--avatarSize-regular:24px" src="https://avatars.githubusercontent.com/u/70074276?u=9fc76a968a48090c92d3c86d1e3d738dba7d8669&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/seha-bot" data-hovercard-url="/users/seha-bot/hovercard" data-testid="issue-body-header-author">seha-bot</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/7855#issue-3017120748" data-testid="issue-body-header-link"><relative-time class="sc-aXZVg IssueBodyHeader-module__RelativeTime--LRd7n">on <!-- -->Apr 24, 2025</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">The wording of <a href="https://eel.is/c++draft/temp.func.order#3" rel="nofollow">[temp.func.order]/3</a></p>
<blockquote>
<p dir="auto">To produce the transformed template, for each type, constant, type template, variable template, or concept template parameter (including template parameter packs ([temp.variadic]) thereof) synthesize a unique type, value, class template, variable template, or concept, respectively, and substitute it for each occurrence of that parameter in the function type of the template.</p>
</blockquote>
<p dir="auto">is vague and leaves the precise nature of the transformed function type to be easily misunderstood. Consider, for example:</p>
<div class="highlight highlight-source-c++ notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="template &lt;typename T&gt;
void f(T, typename std::type_identity_t&lt;T&gt;);"><pre class="notranslate"><span class="pl-k">template </span>&lt;<span class="pl-k">typename</span> T&gt;
<span class="pl-k">void</span> <span class="pl-en">f</span>(T, <span class="pl-k">typename</span> std::<span class="pl-c1">type_identity_t</span>&lt;T&gt;);</pre></div>
<p dir="auto">Intuitively, one might expect the transformed function type to be</p>
<div class="highlight highlight-source-c++ notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="void (A, A)"><pre class="notranslate"><span class="pl-k">void</span> (A, A)</pre></div>
<p dir="auto">where <code class="notranslate">A</code> is some unique invented type. However, the intention seems to be that the transformed function type in this case becomes</p>
<div class="highlight highlight-source-c++ notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="void (A, B)"><pre class="notranslate"><span class="pl-k">void</span> (A, B)</pre></div>
<p dir="auto">where <code class="notranslate">A</code> and <code class="notranslate">B</code> are distinct invented types. i.e., the transformation performs substitution only, <em>type-specifier</em>s that would require template instantiation to resolve are considered to give rise to distinct types of their own.</p>
<p dir="auto">We would suggest to add a note of this fact and, ideally, some examples to illustrate this key issue. e.g.:</p>
<div class="highlight highlight-source-c++ notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="#include &lt;type_traits&gt;

template &lt;typename T&gt; void f(T, T);                        // #1
template &lt;typename T&gt; void f(T, std::type_identity_t&lt;T&gt;);  // #2, less specialized than #1

template &lt;typename T&gt; using identity_t = T;
template &lt;typename T&gt; void f(T, identity_t&lt;T&gt;); // redeclaration of #1"><pre class="notranslate">#<span class="pl-k">include</span> <span class="pl-s"><span class="pl-pds">&lt;</span>type_traits<span class="pl-pds">&gt;</span></span>

<span class="pl-k">template </span>&lt;<span class="pl-k">typename</span> T&gt; <span class="pl-k">void</span> <span class="pl-en">f</span>(T, T);                        <span class="pl-c"><span class="pl-c">//</span> #1</span>
<span class="pl-k">template </span>&lt;<span class="pl-k">typename</span> T&gt; <span class="pl-k">void</span> <span class="pl-en">f</span>(T, std::<span class="pl-c1">type_identity_t</span>&lt;T&gt;);  <span class="pl-c"><span class="pl-c">//</span> #2, less specialized than #1</span>

<span class="pl-k">template </span>&lt;<span class="pl-k">typename</span> T&gt; <span class="pl-k">using</span> <span class="pl-c1">identity_t</span> = T;
<span class="pl-k">template </span>&lt;<span class="pl-k">typename</span> T&gt; <span class="pl-k">void</span> <span class="pl-en">f</span>(T, <span class="pl-c1">identity_t</span>&lt;T&gt;); <span class="pl-c"><span class="pl-c">//</span> redeclaration of #1</span></pre></div>
<p dir="auto">Big thanks to <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/michael-kenzel/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/michael-kenzel">@michael-kenzel</a> for the explanation and the example.</p></div></div><div class="IssueBodyViewer-module__IssueBodyTaskList--xb3uu"><!--$--><div role="toolbar" aria-label="Reactions" class="d-flex gap-1 flex-wrap"><button type="button" aria-label="👍 1 reaction" role="switch" aria-checked="false" class="prc-Button-ButtonBase-c50BI ReactionButton-module__reactionToggleButton--axnvQ" data-loading="false" data-size="small" data-variant="default" aria-describedby=":Rsdaklmb:-loading-announcement :Rdaklmb: :R4daklmb:"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB">👍</span><span 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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 fRHxbb"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU fRHxbb"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU jETYlX"></div></div></div></div></div></div><div><div class="CommentLoading-module__CommentLoadingContainer--I9JkW"><div height="40px" width="40px" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 kqdiwS gALJmv"></div><div 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 jETYlX"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU infpTv"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU dsfQtU"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU fyeZrh"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU doePdd"></div></div></div></div></div></div><div><div class="CommentLoading-module__CommentLoadingContainer--I9JkW"><div height="40px" width="40px" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 kqdiwS gALJmv"></div><div 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 doePdd"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU gXecGS"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU ecIQRq"></div><div height="sm" width="random" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 hpcToU gmBcjw"></div></div></div></div></div></div><div><div class="CommentLoading-module__CommentLoadingContainer--I9JkW"><div height="40px" width="40px" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 kqdiwS gALJmv"></div><div 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 hFuQlZ"></div></div></div></div></div></div><div><div class="CommentLoading-module__CommentLoadingContainer--I9JkW"><div height="40px" width="40px" class="Box-sc-g0xbh4-0 LoadingSkeleton-sc-14d3f1fe-0 kqdiwS gALJmv"></div><div 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 dRdjrc"></div></div></div></div></div></div></div><!--/$--></div></div></div><div data-testid="issue-viewer-metadata-container" class="Box-sc-g0xbh4-0 cLtwuV IssueViewer-module__metadataSidebar--QdJ2b"><div class="IssueViewer-module__issueViewerMetadataPane--i01ta" data-testid="issue-viewer-metadata-pane"><h2 class="IssueViewer-module__metadataHeader--OGi4i prc-Heading-Heading-6CmGO">Metadata</h2><h2 class="IssueViewer-module__largeScreenMetadataHeader--xPLHt sr-only prc-Heading-Heading-6CmGO">Metadata</h2><div data-testid="sticky-sidebar"><div class="IssueSidebar-module__sidebarContent--II51T"><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">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>
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    >
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<li class="mx-2">
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    <button
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      class="Link--secondary underline-on-hover border-0 p-0 color-bg-transparent text-left"
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      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;}"
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  <div id="ajax-error-message" class="ajax-error-message flash flash-error" hidden>
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    <button type="button" class="flash-close js-ajax-error-dismiss" aria-label="Dismiss error">
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</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;">
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    <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">
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    <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>

