<div dir="ltr">FYI, [Boost].UT (since v1.1.2) has relaxed the standard requirement to C++17 (although some limitations apply depending on the standard/compiler combination).<div><br><div>In general, source_location is available since C++20, however, the builtin functionality powering it (__builtin_FILE(), __builtin_LINE()) is available since GCC-9/Clang-9.</div></div><div><br></div><div>Therefore, now:</div><div>* [Boost].UT with Clang/GCC >= 9 and with either C++17 or C++20 works as expected (although with C++17 it uses compiler builtin designed for C++20 source_location)</div><div>* [Boost].UT with Clang/GCC < 9 and with either C++17 or C++20 still compiles/`works`, however, the file/line in assertion won't be propagated</div><div><br></div><div>Also, MSVC-2019 doesn't support source_location yet neither with /std:C++20 nor with /std:C++latest, hence, the file/line is also not propagated yet.</div><div><br></div><div>Example here -> <a href="https://godbolt.org/z/XNgMdN">https://godbolt.org/z/XNgMdN</a></div><div><br></div><div>-Kris</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 22, 2019 at 1:53 PM Vinnie Falco <<a href="mailto:vinnie.falco@gmail.com">vinnie.falco@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Thu, Nov 21, 2019 at 7:24 AM Krzysztof Jusiak via Boost-users<br> <<a href="mailto:boost-users@lists.boost.org" target="_blank">boost-users@lists.boost.org</a>> > I was wondering whether there is any<br> interest in exploring<br> > a C++20 single header/single module, macro-free Unit<br> > Testing Framework with no dependencies?<br> <br> I have no interest in a library that requires C++20, especially<br> considering that C++20 is not even official yet but also because once<br> C++20 is released, there will be hardly any users for many years. This<br> project seems very much like it was written "just because", to use the<br> latest language features, rather than for pragmatic reasons. I don't<br> see anything compelling to use it over Boost.LightweightTest for<br> example.<br> <br> Thanks<br> </blockquote></div>