Coming in C++23

The main features in C++23 of interest to scientific computing are:

<mdspan> and Multi-d Subscript Operator

<print>

<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