Iteration Revisited: A Safer Iteration Model for Cpp
Talkat CppCon 2023 · on Friday, 2023-10-06· at 09:00· Cottonwood 8/9, 6700 North Gaylord Rockies Boulevard·
summary
Claims a safer C++20 iteration model implemented as the Flux library on GitHub that replaces pointer-like iterators with index-like cursors and four primitives: first/is_last/read_at/inc. read_at is bounds-checked by default (terminates or can throw) with an unchecked read_at for critical hot paths. Provides automatic interoperability with contiguous ranges and a from_range adapter for others, exposes a sequence→range iterator, and uses an internal iteration hook for_each_while to enable autovectorization so Flux can match or sometimes beat std::ranges performance.
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chapters (9)
- 0:00Introduction
- 1:06C++ iteration evolution
- 13:34STL iterator risks
- 24:10Introducing flux library
- 33:24Flux design concepts
- 39:27Flux adapters and pipelines
- 44:04Flux performance and checks
- 53:20Summary
- 54:03Q&A
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