Matthias Krüger 14ef447d12 Rollup merge of #83791 - the8472:relax-zip-side-effect-guarantee, r=dtolnay ... Weaken guarantee around advancing underlying iterators in zip The current guarantee (introduced in #52279) is too strong as it prevents adapters from exploiting knowledge about the iterator length and using counted loops for example because they would stop calling `next()` before it ever returned `None`. Additionally several nested zip iterators already fail to uphold this. This does not yet remove any of the specialization code that tries (and sometimes fails) to uphold the guarantee for `next()` because removing it would also affect `next_back()` in more surprising ways. The intent is to be able to remove for example this branch 36bcf40697/library/core/src/iter/adapters/zip.rs (L234-L243) or this test 36bcf40697/library/core/tests/iter/adapters/zip.rs (L177-L188) Solves #82303 by declaring it a non-issue.		2021-11-27 11:46:40 +01:00
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benches	Auto merge of #88788 - falk-hueffner:speedup-int-log10-branchless, r=joshtriplett	2021-10-12 03:18:54 +00:00
primitive_docs	Add primitive documentation to libcore	2021-09-12 02:23:08 +00:00
src	Rollup merge of #83791 - the8472:relax-zip-side-effect-guarantee, r=dtolnay	2021-11-27 11:46:40 +01:00
tests	Partially stabilize duration_consts_2	2021-11-22 13:09:08 -05:00
Cargo.toml	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00