Three Cool Things in C++26: Safety, Reflection & std::execution
summary
C++26 makes three concrete shifts: it defines erroneous behavior so uninitialized local variables either terminate or get detected by default with an opt‑in [[indeterminate]] to restore UB; it standardizes hardened standard library bounds checks (Google reports deployment across hundreds of millions of LOC with ~0.3% overhead and 1000+ bugs found) and formalizes trivial relocation for faster moves; and it adds compile-time reflection plus splicing (seven papers adopted, Clang/EDG prototypes and CPPFront demos on Godbolt already generate code and emit files today), and a std::execution async model with sender/receiver and thread‑pool primitives.
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chapters (9)
- 0:00Introduction
- 2:52C++26 safety features
- 13:28Hardened library and bounds checks
- 16:03Trivial relocation
- 21:24Reflection in C++26
- 39:22Reflection demos
- 50:34Reflection future
- 1:03:34std::execution model
- 1:09:12Summary
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