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New posts in c++20

Granting friendship to constructor/destructor of template class specialization - works under C++17, but fails under C++20

c++ language-lawyer c++20 friend friend-function

Overloading operator== with `&&` and `const` qualifier cause ambiguity in C++20

c++ operator-overloading comparison language-lawyer c++20

Can there be different implicit objects based on a later runtime decision in C++20?

c++ language-lawyer c++20

Will we be able to construct containers with views in C++20?

c++ c++20 range-v3

Is it possible to use std::endian if it is available, otherwise do something else?

c++ endianness constexpr c++20

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

c++ c++20

How to write deduction guidelines for aliases of aggregate templates?

c++ c++20 aggregate-initialization template-aliases deduction-guide

if constexpr and requires-expression for ad-hoc concepts checking

c++ c++-concepts c++20

Will getting the current date/time be thread-safe in C++20?

c++ date datetime time c++20

Are captureless lambda guaranteed to be empty by the standard?

c++ lambda c++17 c++20

Where is std::future::then() and the concurrency TS?

c++ c++20

Floating-point types as template parameter in C++20

c++ templates floating-point c++20

Why didn't `accumulate` make it into Ranges for C++20?

c++ c++20 range-v3

Non-type template parameters and requires

c++ c++20 c++-concepts non-type-template-parameter

What is a "prospective destructor" in C++20?

c++ language-lawyer destructor c++20 raii

Why is std::variant unable to hold array object types while union can?

c++ visual-c++ c++17 variant c++20

Why is ranges::ostream_iterator default-constructible?

c++ iterator ostream c++20 range-v3

Does span propagate const?

c++ constants c++20 std-span

Why does C++20's requires expression not behave as expected?

c++ templates c++20 sfinae typetraits

How can I define a concept that is satisfied by an arbitrary std::vector?

c++ templates vector c++20 c++-concepts
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