Discussed in today's EWG telecon. One notable action item is to sync with the C committee people on this.

Polls:

Add compound literal to C++ (assuming my favored solution to the lifetime issues are addressed)

C++ compound literals should only work for trivial types (so that destructors aren't an issue)

C++ compound literals should match C++'s temporary object lifetime semantics

C++ compound literals should match C's block lifetime semantics

This paper was discussed at the Apr 1, 2022 SG22 teleconference and we took one poll:

Does SG22 prefer C semantics (lifetime, storage duration, value category) for C types (std::is_trivially_destructible) for compound literals in P2174R0?

Overall: consensus, but low attendance

P2174R1 Compound Literals (Zhihao Yuan)

EWG would be interested in seeing compound literals if they ONLY included types without destructors.

Result: Not Consensus

EWG would be interested in seeing compound literals with the subset of storage class specifiers in the new C syntax for N3038.

Result: Not Consensus

Closing, there was not consensus for further work here, will re-open if a followup paper comes with additional motivation.