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康桓瑋 has asked 99 questions and find answers to 137 problems.

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康桓瑋 questions

Under what circumstances is ref_view{E} ill-formed and subrange{E} not?
Why std::ranges::view_interface using CRTP
Why does `zip_view` not support `output_range`?
What is the ideal way to customize the separators and brackets for formatting ranges?
Getting unexpected result when combining [[no_unique_address]] with empty base class inheritance
Combined with C++23 Deducing this and conversion operator with auto return type?
Why does ranges::for_each return the function?
Why can't the compiler use the std::string conversion function of the class when perform operator<<?
The problem of libstdc++‘s implementation of std::declval
How to project elements nestedly in c++20 constrained algorithms?

康桓瑋 answers

O(1) find/contains in std::ranges::views::iota
Concatenate different types using ranges-v3
C++20 Concept to check tuple-like types
Is there a way to make the compiler include functions from outer scopes when picking a candidate?
Why do I get an error: cannot decompose inaccessible member when compiling this code using std::views::chunk?
can ranges split be used with a predicate?
std::variant and ambiguous initialization
Cannot convert rvalue std::array to std::span
Allow std::expected to use a private constructor
Printing a std::map using a std::range::copy and an adaptor