...parameter. These annotations are used to validate/invalidate ref return functions that call such a...

Does this pretty much completely invalidate projects like this: https://bitbucket.org/ariovistus/pyd ?

I...

...not be looking for extra ways to invalidate existing code unless there is an extremely...

Because you invalidate most legitimate use of a setter.

A struct with a function pointer...

...modern CPUs do lots of things that invalidate the concept of C as a "high...

Ignoring an argument does not invalidate it. The fact that you don't perceive
something...

...any reason" is too much weak. To invalidate this enhancement request you have to show...

...to give "0(1)" access, and only invalidate the cache when splicing with another list...

...08 PST ---
Desiderata
==========

Design choices may sometimes invalidate important use cases, so let's start...

...of course, copying the struct will potentially invalidate it's parent)

The problem is actually...