<div dir="ltr"><span class="gmail-im" style="font-size:12.8px"><span style="font-size:12.8px">Hi Everyone,</span><br style="font-size:12.8px"><br>** HEADS UP, NEXT WEEK **</span><div><span class="gmail-im" style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">The formal review of Niall Douglas' Outcome library starts next week (Fri-19-May to Sun-28-May).</span><br style="font-size:12.8px"><br style="font-size:12.8px"></span><span style="font-size:12.8px">Your participation is encouraged, as the proposed library is uncoupled and focused, and reviewers don't need to be domain experts to appreciate the potential usefulness of the library and to propose improvements. Everyone needs (and has suffered) error handling, and can compose an opinion on that topic.</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">Outcome is a header-only C++14 library providing expressive and type-safe ultra-lightweight error handling, suitable for low-latency code bases. </span><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Key features:</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">*- Makes using std::error_code from C++11's <system_error> more convenient and safe</div><div style="font-size:12.8px">*- Provides high-quality implementation of proposed std::expected<T,E> (on C++20 standards track)</div><span class="gmail-im" style="font-size:12.8px"><div style="font-size:12.8px">*- Good focus on low-latency (with tests and benchmarks)</div></span><div style="font-size:12.8px">*- Error-handling algorithmic composition with-or-without C++ exceptions enabled</div><span class="gmail-im" style="font-size:12.8px"><div style="font-size:12.8px">*- No dependencies (not even on Boost)</div><div style="font-size:12.8px"><br></div></span><div style="font-size:12.8px">This review is timely, as C++17 brings us std::optional<T>. The upcoming std::expected<T,E> (an implementation provided in Outcome) is a generalization of std::optional<T> that provides a <success|fail> value, where the unhappy result is a 'std::error_code' or an instance of "your-chosen-error-type".</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">The library further provides 'outcome<T,error-code,<wbr>exception-ptr>' for handling <success|error|exception> to safely wrap throwing APIs.</div><div style="font-size:12.8px"><div><br></div><div>Documentation:</div><div> <a href="https://ned14.github.io/boost.outcome/index.html" target="_blank">https://ned14.github.io/boos<wbr>t.outcome/index.html</a></div><span class="gmail-im"><div><br></div><div style="font-size:12.8px"><span style="font-size:12.8px">ACCU 2017 talk including design rationale:</span><br></div><div style="font-size:12.8px"> <a href="https://www.youtube.com/watch?v=XVofgKH-uu4" target="_blank">https://www.youtube.com/watc<wbr>h?v=XVofgKH-uu4</a></div><div style="font-size:12.8px"><br></div></span><div>GitHub:</div><div> <a href="https://github.com/ned14/boost.outcome" target="_blank">https://github.com/ned14/boo<wbr>st.outcome</a></div><div><br></div><div>Latest tarball:</div><div> <a href="https://github.com/ned14/boost.outcome/releases/download/boost_peer_review3/boost.outcome-v1.0-source-201705111650.tar.xz" rel="noreferrer" target="_blank" style="font-size:12.8px">https://github.com/ned14/<wbr>boost.outcome/releases/<wbr>download/boost_peer_review3/<wbr>boost.outcome-v1.0-source-<wbr>201705111650.tar.xz</a></div><div><br></div><div>Note: Tarball might be easiest; but if you want to clone from GitHub directly, after the clone you should run the following command to get the source zip exactly: <span style="font-size:12.8px"> git submodule update --init --recursive</span></div><div><span style="font-size:12.8px"><br></span></div><div><div><div style="font-size:12.8px"><div class="gmail-adL"><span class="gmail-im"><div><span style="font-size:12.8px">NEXT WEEK (when the public review is started): Please post your comments and review to the boost mailing list (preferably), or privately to the Review Manager (to me ;-). Here are some questions you might want to answer in your review:</span><br></div><div><br style="font-size:12.8px"><span style="font-size:12.8px">- What is your evaluation of the design?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- What is your evaluation of the implementation?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- What is your evaluation of the documentation?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- What is your evaluation of the potential usefulness of the library?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- Did you try to use the library? With what compiler? Did you have any problems?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- How much effort did you put into your evaluation? A glance? A quick reading? In-depth study?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- Are you knowledgeable about the problem domain?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">And most importantly:</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">- Do you think the library should be accepted as a Boost library?</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">For more information about Boost Formal Review Process, see: </span><a href="http://www.boost.org/community/reviews.html" rel="noreferrer" target="_blank" style="font-size:12.8px">http://www.boost.org/comm<wbr>unity/reviews.html</a><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">Thank you very much for your time and efforts.</span></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">--charley</span></div><div><span style="font-size:12.8px"><br></span></div></span></div></div></div><div class="gmail-adL"><div class="gmail-adm" style="font-size:12.8px"></div><div class="gmail-im" style="font-size:12.8px"></div></div></div></div></div></div>