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To me, this slide is almost the perfect summary of why I'm very wary of this proposal. Having the same syntax be used to support very many, quite different, operations seems facially convenient... except when the "do what I mean" feature doesn't actually do what I mean.
Watching Herb Sutter talk "Extending and Simplifying C++: Thoughts on pattern Matching using `is` and `as`" @CppCon Great slide comparing is and as keywords Vs various ways to query and cast types as in C++20 today. #CppCon #cplusplus
C++, inconsistently enforcing consistently wrong defaults.
あら、Twitterにも載っけるのね
What kind of person would use a date format like: 19/Sep/17 Just... why.
Clang trunk with `-std=c++17 -pedantic-error` sets __has_cpp_attribute(nodiscard) to 201907, but emits an error if [[nodiscard("message")]] is used. It doesn't warn if -pedantic is not set, but there seems to be no easy way to tell whether the option is active or not. 🤔
Most of the <=>s I'm adding to the library will be hidden friends. While I'm doing that, I'm moving the ==s to hidden friends too and removing a lot of the rest.
Assignable<optional<int>&, optional<const int>> is false because there's no common reference...WTF
New blog, new post. Why I think we need a more powerful way to constrain functions than what C++20 Concepts has to offer. #cpp brevzin.github.io/c++/2018/10/20…
If `foo(Concept a, Concept b)` is standardized with the meaning that `a` and `b` must have the same type I will switch to Perl.
Retweet if you know what C++ feature-test macros are, and you want MSVC to implement them. (Informal survey for my personal curiosity!)
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