[libcxx-commits] [PATCH] D80891: [libcxx] adds consistent comparison for `basic_string_view`

[Kent Ross via Phabricator via libcxx-commits]

mumbleskates added inline comments.


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Comment at: libcxx/include/string_view:31
     constexpr bool operator!=(basic_string_view<charT, traits> x,
-                              basic_string_view<charT, traits> y) noexcept;
+                              basic_string_view<charT, traits> y) noexcept;     // C++17
     template<class charT, class traits>
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As I understand it, the functions for the operators {`<`,`<=`,`>=`,`>`,`!=`} are no longer supposed to be defined in C++20, and should always be synthesized from `<=>` and `==` by the compiler. That is, if we are defining `operator<=>` we should be doing it //instead of// the five non-`==` operators. Is there another reason these symbols still need to be defined?


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  https://reviews.llvm.org/D80891/new/

https://reviews.llvm.org/D80891