Why Not Just Do Simple C++ RAII in C?

New in C2y is an operator that does something people have been asking us for, for decades:

N3366 - Restartable Functions for Efficient Character Conversions has made it into the C2Y Standard (A.K.A., “the next C standard after C23”). And one of my longest struggles — the sole reason I actually came down to the C Standards Committee in the first place —

The first two meetings of C after C23 was finalized are over, and we have started working on C2y. We decided that this cycle we’re not going to do that “Bugfix” followed by “Release” stuff, because that proved to be a REALLY bad idea that killed a ton of momentum and active contributors during the C11 to C17 timeframe. So, this time, we’re...

Constant integer-typed (including enumeration-typed) object declarations in C that are immediately initialized with an integer constant expression should just be constant expressions. That’s it.

I received a few complaints that #embed was difficult to implement and hard to optimize. And, the people making these claims