Cute C++ Tricks, Part 2 of N: More code you should learn from and never write
summary
Shows concrete C++ gotchas: using assert in constexpr to force compile-time failures where static_assert won't work, why constexpr functions can be ill-formed yet compile (the IFNDR (ill-formed no diagnostic required) corner), and a runnable registry hack that stores values in a static during a throwing initializer and later reconstructs a Lambda type with decltype to access that storage. Covers the exact code patterns, compiler warnings produced, and a real failure mode when moving Lambdas to a GPU.
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chapters (6)
- 0:00Introduction
- 1:14Talk objectives and disclaimers
- 4:46Assert in constexpr
- 13:17Constexpr functions
- 21:53Spooky static storage
- 29:19Questions and conclusion
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