std::copy_if, std::remove_copy_if, std::copy, std::back_inserter, and std::execution::par_unseq are features from C++11 and C++98 that helps efficiently copy from one data structure to the another.
std::for_each, std::ranges::for_each, std::optional, and std::execution::par_unseq are features from C++20 and C++23 that helps efficiently loop through the loop, loop in parallel, add optional values in the data structure of your choice, etc.
std::any_of, std::none_of and std::all_of is a C++20 feature that helps efficiently check for basic conditions in the data structures. This is very optimal because of early termination once some fact is found and the algorithm don’t have to iterate more to further prove anything before returning the result.
[[no_unique_address]] is a C++ 20 feature that helps in saving memory while declaring an empty struct or class and creating object for it in some other place.
In this short article, I have posted an example that does the reinterpret_cast on an integer and convert it to char pointer and then the value pointed by the char pointer is converted to r-value reference all in a macro.
