Missing (and future?) C++ range concepts
summary
Proposes concrete, implementable extensions to std::ranges: compile-time-sized ranges, contiguous chunks and a push-based customization point for_each_while(rng, sink). Shows a library prototype that replaces many iterator state machines with inlinable push loops, preserves chunked memcpy optimizations for joined spans, and enables heterogeneous generators so std::tuple can participate in range algorithms. The prototype composes with current views and yields measurably faster code after inlining while exposing edge cases for infinite and unbounded ranges.
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chapters (8)
- 0:00Introduction and context
- 2:27Optimizing range performance
- 12:02Limitations of current models
- 15:39Chunked ranges and sink interfaces
- 24:36Compile-time metaprogramming
- 33:53Heterogeneous generators
- 45:27Handling infinite ranges
- 54:01Conclusion and Q&A
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