Recent questions tagged c++20

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c++20 - Why do we need the spaceship <=> operator in C++?

Why do we need such an operator in C++ and how is it useful in modern C++ programming? Any real world ... . No offense to the proposal though. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++20 - Why C++ ranges "transform -> filter" calls transform twice for values that match the filter's predicate?

Consider the following code using the ranges library (from c++20) #include <iostream> #include <ranges> #include < ... as it finds a match? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++20 - C++ Concept that requires a member function with an OutputIterator as parameter

I am playing with concepts and hit a roadblock. Or maybe it is just my mind that is blocked. I want to ... not want/can specify the type? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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