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<p>Clang (trunk) does not appear to implement <a moz-do-not-send="true" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0929r2.html">
P0929</a>, nor does the <a moz-do-not-send="true" href="https://clang.llvm.org/cxx_status.html#cxx20">
C++20 implementation status page</a> acknowledge it.  Known issue?</p>
<p><a moz-do-not-send="true" href="https://godbolt.org/z/cMcddo">https://godbolt.org/z/cMcddo</a><br>
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<p>Tom.<br>
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