For guaranteed NRVO for more complex types, see also P2025R2: Guaranteed copy elision for return variables (https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2025r2.html) P3375R0: NRVO with factory and after_factory (https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2024/p3357r0.html) -----Ursprüngliche Nachricht----- Von:Tiago Freire via Std-Proposals <std-proposals_at_[hidden]> Gesendet:Sa 15.02.2025 23:43 Betreff:Re: [std-proposals] Delayed const declaration An:Paul Caprioli <paul_at_[hidden]>; std-proposals_at_[hidden]; CC:Tiago Freire <tmiguelf_at_[hidden]>; Ok, granted my example was a bit simple. But immediate lambdas are not a solution here. 1. Think of more complex types, and situations where it is not guaranteed NRVO.