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</div> </div> </header> </div> <div id="content-wrapper" class="content-wrapper"> <div id="content" class="site-content"> <div id="primary" class="content-area"> <main id="main" class="site-main" role="main"> <header class="page-header"> <h1 class="page-title">Month: <span>May 2019</span></h1> </header> <article id="post-3710" class="post-3710 post type-post status-publish format-standard hentry category-c"> <header class="entry-header"> <h1 class="entry-title"><a href="https://herbsutter.com/2019/05/03/eurollvm-lifetime-talk-by-gabor-horvath-and-matthias-gehre/" rel="bookmark">EuroLLVM Lifetime talk by Gábor Horváth and Matthias Gehre</a></h1> </header> <div class="entry-content"> <p>At CppCon 2018, I gave an <a href="https://herbsutter.com/2018/09/30/my-cppcon-2018-talk-is-now-online/">update of my Lifetime analysis work</a> that makes common cases of pointer/iterator/range/etc. dangling detectable at compile time (the <a href="https://github.com/isocpp/CppCoreGuidelines/tree/master/docs">spec is here</a> in the C++ Core Guidelines GitHub repo). During that talk, we mentioned and demo’d two implementations: as a Visual C++ extension by Kyle Reed and Neil MacIntosh, and in a fork of Clang by Matthias Gehre and Gábor Horváth who both also joined me on-stage.</p> <p>Last month at EuroLLVM, Matthias and Gábor gave a 30-minute progress report talk about their work to upstream the Lifetime rules implementation into Clang, <a href="https://youtu.be/VynWyOIb6Bk"><strong>“Implementing the C++ Core Guidelines’ Lifetime Safety Profile in Clang.”</strong></a> They give a summary of the approach and how it maps to Clang internals, show initial results from testing against Clang’s and LLVM’s own sources, and end with a nice roadmap for the next steps of incrementally upstreaming the work to Clang trunk.</p> <p>If you care about making C++ safer, I recommend taking a look… it’s a great summary and update. Thanks, Matthias and Gábor and Kyle and Neil for their collaboration on this project!</p> <figure class="wp-block-embed-youtube wp-block-embed is-type-rich wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper"> <div class="embed-youtube"><iframe title="2019 EuroLLVM Developers’ Meeting: G. Horvath & M. Gehre “Implementing the C++ Core Guidelines' ...”" width="1100" height="619" src="https://www.youtube.com/embed/VynWyOIb6Bk?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe></div> </div></figure> </div> <footer class="entry-footer"> <div class="entry-meta"> <span class="byline"> <a href="https://herbsutter.com/author/herbsutter/" title="Posts by Herb Sutter" rel="author">Herb Sutter</a> </span> <span class="cat-links"> <a href="https://herbsutter.com/category/c/" rel="category tag">C++</a> </span> <span class="published-on"> <a href="https://herbsutter.com/2019/05/03/eurollvm-lifetime-talk-by-gabor-horvath-and-matthias-gehre/" rel="bookmark"><time class="entry-date published" datetime="2019-05-03T15:59:46-08:00">2019-05-03</time><time class="updated" datetime="2019-05-03T16:04:50-08:00">2019-05-03</time></a> </span> <span class="word-count">1 Minute</span> </div> </footer> </article> </main> </div> <div id="secondary" class="widget-area" role="complementary"> <aside id="search-4" class="widget widget_search"><form role="search" method="get" class="search-form" action="https://herbsutter.com/"> <label> <span class="screen-reader-text">Search for:</span> <input type="search" class="search-field" placeholder="Search …" value="" name="s" /> </label> <input type="submit" class="search-submit" value="Search" /> </form></aside><aside id="blog_subscription-3" class="widget widget_blog_subscription jetpack_subscription_widget"><h1 class="widget-title"><label for="subscribe-field">Follow by email</label></h1> <div class="wp-block-jetpack-subscriptions__container"> <form action="https://subscribe.wordpress.com" method="post" accept-charset="utf-8" data-blog="3379246" data-post_access_level="everybody" id="subscribe-blog" > <p id="subscribe-email"> <label id="subscribe-field-label" for="subscribe-field" class="screen-reader-text" > Email Address: </label> <input type="email" name="email" style="width: 95%; padding: 1px 10px" placeholder="Email Address" value="" id="subscribe-field" required /> </p> <p id="subscribe-submit" > <input type="hidden" name="action" value="subscribe"/> <input type="hidden" name="blog_id" value="3379246"/> <input type="hidden" name="source" value="https://herbsutter.com/2019/05/"/> <input type="hidden" name="sub-type" value="widget"/> <input type="hidden" name="redirect_fragment" value="subscribe-blog"/> <input type="hidden" id="_wpnonce" name="_wpnonce" value="c1038c5b8c" /> <button type="submit" class="wp-block-button__link" > Subscribe </button> </p> </form> </div> </aside><aside id="block-2" class="widget widget_block widget_media_image"> <figure class="wp-block-image size-medium is-resized is-style-default"><a href="https://herbsutter.files.wordpress.com/2024/03/herb-cppcon-2021.jpg"><img loading="lazy" width="300" height="230" src="https://herbsutter.files.wordpress.com/2024/03/herb-cppcon-2021.jpg?w=300" alt="" class="wp-image-5065" style="width:248px;height:auto" srcset="https://herbsutter.files.wordpress.com/2024/03/herb-cppcon-2021.jpg?w=300 300w, https://herbsutter.files.wordpress.com/2024/03/herb-cppcon-2021.jpg?w=600 600w, https://herbsutter.files.wordpress.com/2024/03/herb-cppcon-2021.jpg?w=150 150w" sizes="(max-width: 300px) 100vw, 300px" /></a></figure> </aside><aside id="block-3" class="widget widget_block widget_text"> <p class="has-small-font-size">I'm an author and speaker, and a programming language nerd whose focus is on enabling our program code to be both clean <em>and</em> fast. I've been writing about programming since 1993, usually about C++ or about concurrency and parallelism. I'm the designer or co-designer of a number of standardized ISO C++ language and library features. I've served as the chair of the <a href="https://isocpp.org/std/the-committee">ISO C++ standards committee</a> since 2002, and as the chair of the <a href="https://isocpp.org/about">Standard C++ Foundation</a> since 2012. I'm a technical fellow at <a href="https://www.citadelsecurities.com/">Citadel Securities</a>. 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