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康桓瑋 has asked 100 questions and find answers to 143 problems.

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康桓瑋 questions

What is the return type of ternary operator applied to 'const char* const&' and 'char* &'?
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

康桓瑋 answers

Invoking a tuple containing both the invocable and the arguments
How would you implement a lazy "range factory" for C++20 ranges that just calls a generator function?
Why chained range views sometimes increase in size?
How to define a C++ concept for a range to a std::pair of reference wrappers?
Why isn't a transform_view a borrowed_range?
How to use std::format to format all derived class of the same base class?
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?