1 post tagged #cpp23.
#cpp23
Andreas Fertig's 2026-05-18 post (re-shared on isocpp.org) makes a pointed case: reinterpret_cast and std::start_lifetime_as look interchangeable -- but only if you don't read the abstract-machine fine print. reinterpret_cast is a POINTER operation; std::start_lifetime_as is an OBJECT-LIFETIME operation. The 5-line difference between UB-then-it-works-on-my-compiler and defined-behavior.
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