State of standard library implementations

I looked into the implementation status of P0401. It is "already" implemented in Clang https://reviews.llvm.org/D122877 and I was a little bit shocked about it. Not about the speed but how it was. It is simply returning the requested size. How wonderful useful! Yes, it is not against the spec. But I would argue it was not the intention of the paper writer. Maybe I understood it wrong.

It is only a little detail but are the standard library implementations already that resource starved? They wrote they cannot add it because the C library is not providing it. But would that not a good argument to extend the C library?

https://redd.it/1qb7sob
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