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added 3 commits
October 12, 2026 17:34
…nor internal behaviour changes
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HUGE PERFORMANCE BOOST: kill per-element allocation in Map (destination-pointer generator)
Internal GeneratorFn now writes into a caller-provided slot
(func(i int, dst *T) bool) instead of returning a fresh *T. Stages reuse one
scratch per worker, so Map stops allocating a heap box per element.
1M elements: Map 1,000,005 -> 6 allocs/op (96 -> 70 ms);
MapParallel 1,000,022 -> 25 allocs/op (43.5 -> 32.5 ms).
No exported signature changed. Behaviour: First/Any now return a pointer to a
copy (not into the source);