Updated the documentation of spin_loop and spin_loop_hint #59664
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… r=alexcrichton Updated the documentation of spin_loop and spin_loop_hint # Description - Updated the description of `core::hints::spin_loop` - Updated the description of `core::async::spin_loop_hint` Both documentation is rewritten to better reflect when one should prefer using a busy-wait spin-loop (and the `spin_loop` and `spin_loop_hint` functions) over `yield_now`. It also dives a little bit deeper on what the function actually does. closes rust-lang#55418
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Rollup of 5 pull requests Successful merges: - #59076 (Include trailing comma in multiline Debug representation) - #59619 (wasi: Implement more of the standard library) - #59639 (Never return uninhabited values at all) - #59643 (std: Upgrade `compiler_builtins` to fix wasi linkage) - #59664 (Updated the documentation of spin_loop and spin_loop_hint) Failed merges: r? @ghost
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Apr 3, 2019
… r=alexcrichton Updated the documentation of spin_loop and spin_loop_hint # Description - Updated the description of `core::hints::spin_loop` - Updated the description of `core::async::spin_loop_hint` Both documentation is rewritten to better reflect when one should prefer using a busy-wait spin-loop (and the `spin_loop` and `spin_loop_hint` functions) over `yield_now`. It also dives a little bit deeper on what the function actually does. closes rust-lang#55418
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Apr 3, 2019
… r=alexcrichton Updated the documentation of spin_loop and spin_loop_hint # Description - Updated the description of `core::hints::spin_loop` - Updated the description of `core::async::spin_loop_hint` Both documentation is rewritten to better reflect when one should prefer using a busy-wait spin-loop (and the `spin_loop` and `spin_loop_hint` functions) over `yield_now`. It also dives a little bit deeper on what the function actually does. closes rust-lang#55418
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Apr 3, 2019
… r=alexcrichton Updated the documentation of spin_loop and spin_loop_hint # Description - Updated the description of `core::hints::spin_loop` - Updated the description of `core::async::spin_loop_hint` Both documentation is rewritten to better reflect when one should prefer using a busy-wait spin-loop (and the `spin_loop` and `spin_loop_hint` functions) over `yield_now`. It also dives a little bit deeper on what the function actually does. closes rust-lang#55418
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Rollup of 6 pull requests Successful merges: - #59316 (Internal lints take 2) - #59663 (Be more direct about borrow contract) - #59664 (Updated the documentation of spin_loop and spin_loop_hint) - #59666 (Updated the environment description in rustc.) - #59669 (Reduce repetition in librustc(_lint) wrt. impl LintPass by using macros) - #59677 (rustfix coverage: Skip UI tests with non-json error-format) Failed merges: r? @ghost
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Description
core::hints::spin_loopcore::async::spin_loop_hintBoth documentation is rewritten to better reflect when one should prefer using a busy-wait spin-loop (and the
spin_loopandspin_loop_hintfunctions) overyield_now. It also dives a little bit deeper on what the function actually does.closes #55418