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Remove unnecessary tmp variable in default_read_exact #116506

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merged 1 commit into from
Oct 12, 2023

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Wilfred
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@Wilfred Wilfred commented Oct 7, 2023

This tmp variable has existed since the original implementation (added in ff81920), but it's not necessary (maybe non-lexical lifetimes helped?).

It's common to read std source code to understand how things actually work, and this tripped me up on my first read.

This variable seems to serve no purpose, and it's a little confusing
when reading std source code, so remove it.
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rustbot commented Oct 7, 2023

r? @joshtriplett

(rustbot has picked a reviewer for you, use r? to override)

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Oct 7, 2023
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Sure.
@bors r+

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bors commented Oct 11, 2023

📌 Commit dca90f7 has been approved by workingjubilee

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Oct 11, 2023
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bors commented Oct 12, 2023

⌛ Testing commit dca90f7 with merge f562931...

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bors commented Oct 12, 2023

☀️ Test successful - checks-actions
Approved by: workingjubilee
Pushing f562931 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Oct 12, 2023
@bors bors merged commit f562931 into rust-lang:master Oct 12, 2023
12 checks passed
@rustbot rustbot added this to the 1.75.0 milestone Oct 12, 2023
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Finished benchmarking commit (f562931): comparison URL.

Overall result: ❌ regressions - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
0.7% [0.7%, 0.7%] 1
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) 0.7% [0.7%, 0.7%] 1

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
3.5% [2.4%, 5.5%] 5
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
-3.3% [-5.3%, -1.4%] 4
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) 0.5% [-5.3%, 5.5%] 9

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
- - 0
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
-1.1% [-1.4%, -0.8%] 2
Improvements ✅
(secondary)
-2.0% [-2.3%, -1.8%] 4
All ❌✅ (primary) -1.1% [-1.4%, -0.8%] 2

Binary size

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
0.1% [0.0%, 0.1%] 2
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
-0.0% [-0.0%, -0.0%] 1
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) 0.1% [-0.0%, 0.1%] 3

Bootstrap: 629.226s -> 628.721s (-0.08%)
Artifact size: 271.32 MiB -> 271.30 MiB (-0.01%)

bors-ferrocene bot added a commit to ferrocene/ferrocene that referenced this pull request Oct 12, 2023
48: Pull upstream master 2023 10 12 r=tshepang a=Dajamante

* rust-lang/rust#113487
* rust-lang/rust#116506
* rust-lang/rust#116448
* rust-lang/rust#116640
  * rust-lang/rust#116627
  * rust-lang/rust#116597
  * rust-lang/rust#116436
  * rust-lang/rust#116315
  * rust-lang/rust#116219
* rust-lang/rust#113218
* rust-lang/rust#115937
* rust-lang/rust#116014
* rust-lang/rust#116623
* rust-lang/rust#112818
* rust-lang/rust#115948
* rust-lang/rust#116622
* rust-lang/rust#116621
  * rust-lang/rust#116612
  * rust-lang/rust#116611
  * rust-lang/rust#116530
  * rust-lang/rust#95967
* rust-lang/rust#116578
* rust-lang/rust#113915
* rust-lang/rust#116605
  * rust-lang/rust#116574
  * rust-lang/rust#116560
  * rust-lang/rust#116559
  * rust-lang/rust#116503
  * rust-lang/rust#116444
  * rust-lang/rust#116250
  * rust-lang/rust#109422
* rust-lang/rust#116598
  * rust-lang/rust#116596
  * rust-lang/rust#116595
  * rust-lang/rust#116589
  * rust-lang/rust#116586
* rust-lang/rust#116551
* rust-lang/rust#116409
* rust-lang/rust#116548
* rust-lang/rust#116366
* rust-lang/rust#109882
* rust-lang/rust#116497
* rust-lang/rust#116532
* rust-lang/rust#116569
  * rust-lang/rust#116561
  * rust-lang/rust#116556
  * rust-lang/rust#116549
  * rust-lang/rust#116543
  * rust-lang/rust#116537
  * rust-lang/rust#115882
* rust-lang/rust#116142
* rust-lang/rust#115238
* rust-lang/rust#116533
* rust-lang/rust#116096
* rust-lang/rust#116468
* rust-lang/rust#116515
* rust-lang/rust#116454
* rust-lang/rust#116183
* rust-lang/rust#116514
* rust-lang/rust#116509
* rust-lang/rust#116487
* rust-lang/rust#116486
* rust-lang/rust#116450
* rust-lang/rust#114623
* rust-lang/rust#116416
* rust-lang/rust#116437
* rust-lang/rust#100806
* rust-lang/rust#116330
* rust-lang/rust#116310
* rust-lang/rust#115583
* rust-lang/rust#116457
* rust-lang/rust#116508
* rust-lang/rust#109214
* rust-lang/rust#116318
* rust-lang/rust#116501
  * rust-lang/rust#116500
  * rust-lang/rust#116458
  * rust-lang/rust#116400
  * rust-lang/rust#116277
* rust-lang/rust#114709
* rust-lang/rust#116492
  * rust-lang/rust#116484
  * rust-lang/rust#116481
  * rust-lang/rust#116474
  * rust-lang/rust#116466
  * rust-lang/rust#116423
  * rust-lang/rust#116297
  * rust-lang/rust#114564
* rust-lang/rust#114811
* rust-lang/rust#116489
* rust-lang/rust#115304

Co-authored-by: Peter Hall <[email protected]>
Co-authored-by: Emanuele Vannacci <[email protected]>
Co-authored-by: Neven Villani <[email protected]>
Co-authored-by: Alex Macleod <[email protected]>
Co-authored-by: Tamir Duberstein <[email protected]>
Co-authored-by: Eduardo Sánchez Muñoz <[email protected]>
Co-authored-by: koka <[email protected]>
Co-authored-by: bors <[email protected]>
Co-authored-by: Philipp Krones <[email protected]>
Co-authored-by: Camille GILLOT <[email protected]>
Co-authored-by: Esteban Küber <[email protected]>
Co-authored-by: Ralf Jung <[email protected]>
bors-ferrocene bot added a commit to ferrocene/ferrocene that referenced this pull request Oct 13, 2023
48: Pull upstream master 2023 10 12 r=tshepang a=Dajamante

* rust-lang/rust#113487
* rust-lang/rust#116506
* rust-lang/rust#116448
* rust-lang/rust#116640
  * rust-lang/rust#116627
  * rust-lang/rust#116597
  * rust-lang/rust#116436
  * rust-lang/rust#116315
  * rust-lang/rust#116219
* rust-lang/rust#113218
* rust-lang/rust#115937
* rust-lang/rust#116014
* rust-lang/rust#116623
* rust-lang/rust#112818
* rust-lang/rust#115948
* rust-lang/rust#116622
* rust-lang/rust#116621
  * rust-lang/rust#116612
  * rust-lang/rust#116611
  * rust-lang/rust#116530
  * rust-lang/rust#95967
* rust-lang/rust#116578
* rust-lang/rust#113915
* rust-lang/rust#116605
  * rust-lang/rust#116574
  * rust-lang/rust#116560
  * rust-lang/rust#116559
  * rust-lang/rust#116503
  * rust-lang/rust#116444
  * rust-lang/rust#116250
  * rust-lang/rust#109422
* rust-lang/rust#116598
  * rust-lang/rust#116596
  * rust-lang/rust#116595
  * rust-lang/rust#116589
  * rust-lang/rust#116586
* rust-lang/rust#116551
* rust-lang/rust#116409
* rust-lang/rust#116548
* rust-lang/rust#116366
* rust-lang/rust#109882
* rust-lang/rust#116497
* rust-lang/rust#116532
* rust-lang/rust#116569
  * rust-lang/rust#116561
  * rust-lang/rust#116556
  * rust-lang/rust#116549
  * rust-lang/rust#116543
  * rust-lang/rust#116537
  * rust-lang/rust#115882
* rust-lang/rust#116142
* rust-lang/rust#115238
* rust-lang/rust#116533
* rust-lang/rust#116096
* rust-lang/rust#116468
* rust-lang/rust#116515
* rust-lang/rust#116454
* rust-lang/rust#116183
* rust-lang/rust#116514
* rust-lang/rust#116509
* rust-lang/rust#116487
* rust-lang/rust#116486
* rust-lang/rust#116450
* rust-lang/rust#114623
* rust-lang/rust#116416
* rust-lang/rust#116437
* rust-lang/rust#100806
* rust-lang/rust#116330
* rust-lang/rust#116310
* rust-lang/rust#115583
* rust-lang/rust#116457
* rust-lang/rust#116508
* rust-lang/rust#109214
* rust-lang/rust#116318
* rust-lang/rust#116501
  * rust-lang/rust#116500
  * rust-lang/rust#116458
  * rust-lang/rust#116400
  * rust-lang/rust#116277
* rust-lang/rust#114709
* rust-lang/rust#116492
  * rust-lang/rust#116484
  * rust-lang/rust#116481
  * rust-lang/rust#116474
  * rust-lang/rust#116466
  * rust-lang/rust#116423
  * rust-lang/rust#116297
  * rust-lang/rust#114564
* rust-lang/rust#114811
* rust-lang/rust#116489
* rust-lang/rust#115304

Co-authored-by: Emanuele Vannacci <[email protected]>
Co-authored-by: Neven Villani <[email protected]>
Co-authored-by: Alex Macleod <[email protected]>
Co-authored-by: Tamir Duberstein <[email protected]>
Co-authored-by: Eduardo Sánchez Muñoz <[email protected]>
Co-authored-by: koka <[email protected]>
Co-authored-by: bors <[email protected]>
Co-authored-by: Philipp Krones <[email protected]>
Co-authored-by: Camille GILLOT <[email protected]>
Co-authored-by: Esteban Küber <[email protected]>
Co-authored-by: Ralf Jung <[email protected]>
Co-authored-by: ShE3py <[email protected]>
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6 participants