Plenary: C++ MythBusters
summary
Printf family hits global locale locks so replacing sprintf with the fmt library or std::format yields big wins — a macOS case shows about a 4x speedup. std::regex compiles and runs slowly; prefer compile‑time engines like ctre for most patterns. std::optional normally optimizes away overhead but silently copies when returning a mismatched type; C++23 adds monadic optional helpers and libraries like tartanllama provide similar APIs. std::move is only a cast; behavior differs across compilers.
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chapters (11)
- 0:00Start
- 12:42Replacing S Printf with the Format Library
- 14:18Tooling
- 16:41Standard Regex Is Too Slow for Production Use
- 18:21The Ctre Library
- 25:47Optional Complicates Apis
- 26:13Optional for Error Handling
- 31:23The Standard Move
- 34:48Move Semantics
- 43:48Abstraction Patterns
- 45:25Iterators Must Go
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