Coming in C++23
The main features in C++23 of interest to scientific computing are:
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and Multi-d Subscript Operator
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<stacktrace>
The stacktrace header provides functions that allow us to dump out the call stack from within a C++ program. This is helpful for debugging.
See the example here for how to use it: https://en.cppreference.com/w/cpp/utility/basic_stacktrace