<div dir="ltr">Pardon me if the answer to this is trivially documented somewhere (where?), but I was wondering how we test libc++ in C++14 mode.<div><br></div><div>The document at <a href="http://libcxx.llvm.org/">http://libcxx.llvm.org/</a> says to run tests with "make check-libcxx".</div><div>However, I have noticed, based on the file build/test/lit.site.cfg, that this runs our regression tests only in C++11 mode.</div><div><br></div><div>Upon replacing the value of config.std from "c++11" to "c++1y", I found the following (11) tests to fail unexpectedly:</div><div><br>    libc++ :: std/experimental/string.view/string.view.find/find_last_not_of_char_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/find_last_of_pointer_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/rfind_pointer_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/rfind_pointer_size_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.find/rfind_string_view_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.ops/compare.pointer_size.pass.cpp<br>    libc++ :: std/experimental/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp<br>    libc++ :: std/experimental/utilities/time/header.chrono.synop/treat_as_floating_point_v.pass.cpp</div><div><br></div><div>What am I missing?</div><div><br></div><div>Thanks,</div><div>-- Larisse.</div><div><br></div><div><br></div></div>