standard-library

Checklist

• I did not find a duplicate of this feature request in the Github Issues section.

Description

C++11 introduced shared_ptr, which works with T[] types -- but only if the type is given a custom deleter. C++20 expanded this to support shared_ptr<T[]>, and introduces an overload for make_shared for this.

Backport should be updated to support thi

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Docs will be updated to use a new layout, rather than everything on the one page.

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Split the content into multiple pages, then we can