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Improve some pointer-related documentation #62822

Merged
merged 8 commits into from
Jul 26, 2019
Merged

Improve some pointer-related documentation #62822

merged 8 commits into from
Jul 26, 2019

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RalfJung
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r? @sfackler

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 20, 2019
Centril
Centril reviewed Jul 20, 2019
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Centril commented Jul 20, 2019

r? @Centril

@rust-highfive rust-highfive assigned Centril and unassigned sfackler Jul 20, 2019
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Centril commented Jul 22, 2019

Thanks! r=me rollup with #62822 (comment) addressed in some way.

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Centril commented Jul 22, 2019

@bors r+ rollup

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bors commented Jul 22, 2019

📌 Commit 9196781 has been approved by Centril

@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 Jul 22, 2019
Centril added a commit to Centril/rust that referenced this pull request Jul 22, 2019
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Rollup merge of rust-lang#62822 - RalfJung:pointers, r=Centril
1d5ea88 
Improve some pointer-related documentation
@Centril Centril mentioned this pull request Jul 22, 2019
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gnzlbg
gnzlbg reviewed Jul 23, 2019
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@bors r-

will look at the comments later

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Jul 23, 2019
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@gnzlbg

This compiles on stable Rust, so if the Rust language isn't ok with it then somebody should open a soundness bug (playground).

Somebody did: #28179.

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@Centril please have a look at the changes; the one about references is a new sentence so I didn't feel comfortable just doing r=Centril.

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gnzlbg commented Jul 23, 2019 •
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@RalfJung there is no symbol defined twice in those playground examples (note the #![no_main] attribute), also the issue here is Rust accepting the static mut - the version without the mut is ok, as niko shows in that thread.

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RalfJung commented Jul 23, 2019 •
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That issue is about no_mangle being unsafe in general; defining a symbol twice is just one of many ways.

Also see #28179 (comment) (EDIT: I see you edited your post to mention that). And no that version is not okay, it runs arbitrary unsafe code without unsafe.

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Centril commented Jul 23, 2019

@Centril please have a look at the changes; the one about references is a new sentence so I didn't feel comfortable just doing r=Centril.

Thanks; still looks good :)

@bors r+ rollup

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bors commented Jul 23, 2019

📌 Commit 65cf10d has been approved by Centril

@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-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Jul 23, 2019
Centril added a commit to Centril/rust that referenced this pull request Jul 24, 2019
@Centril
Rollup merge of rust-lang#62822 - RalfJung:pointers, r=Centril
b71e579 
Improve some pointer-related documentation
@Centril Centril mentioned this pull request Jul 24, 2019
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bors added a commit that referenced this pull request Jul 24, 2019
@bors
Auto merge of #62923 - Centril:rollup-53i3am3, r=Centril
486833d 
Rollup of 11 pull requests

Successful merges:

 - #62261 (Take substs into account in `conservative_is_privately_uninhabited`)
 - #62528 (Add joining slices of slices with a slice separator, not just a single item)
 - #62738 (Remove uses of mem::uninitialized from std::sys::cloudabi)
 - #62784 (Add riscv32i-unknown-none-elf target)
 - #62808 (Revert "Disable stack probing for gnux32.")
 - #62814 (add support for hexagon-unknown-linux-musl)
 - #62822 (Improve some pointer-related documentation)
 - #62890 (Normalize use of backticks in compiler messages for libsyntax/*)
 - #62901 (cleanup: Remove `extern crate serialize as rustc_serialize`s)
 - #62905 (Normalize use of backticks in compiler messages for doc)
 - #62908 (normalize use of backticks for compiler messages in remaining modules)

Failed merges:

r? @ghost
@RalfJung RalfJung mentioned this pull request Jul 24, 2019
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Centril added a commit to Centril/rust that referenced this pull request Jul 24, 2019
@Centril
Rollup merge of rust-lang#62822 - RalfJung:pointers, r=Centril
a6a0122 
Improve some pointer-related documentation
@Centril Centril mentioned this pull request Jul 24, 2019
Closed
Centril added a commit to Centril/rust that referenced this pull request Jul 24, 2019
@Centril
Rollup merge of rust-lang#62960 - Centril:rollup-8jay7g7, r=Centril
ab09144 
Rollup of 13 pull requests

Successful merges:

 - rust-lang#60938 (rustdoc: make #[doc(include)] relative to the containing file)
 - rust-lang#61890 (Fix some sanity checks)
 - rust-lang#62084 (allow clippy::unreadable_literal in unicode tables)
 - rust-lang#62261 (Take substs into account in `conservative_is_privately_uninhabited`)
 - rust-lang#62528 (Add joining slices of slices with a slice separator, not just a single item)
 - rust-lang#62735 (Turn `#[global_allocator]` into a regular attribute macro)
 - rust-lang#62801 (Remove support for -Zlower-128bit-ops)
 - rust-lang#62808 (Revert "Disable stack probing for gnux32.")
 - rust-lang#62822 (Improve some pointer-related documentation)
 - rust-lang#62904 (Disable d32 on armv6 hf targets)
 - rust-lang#62907 (Initialize the MSP430 AsmParser)
 - rust-lang#62921 (Add method disambiguation help for trait implementation)
 - rust-lang#62942 (Use match ergonomics in Condvar documentation)

Failed merges:

r? @ghost
Centril added a commit to Centril/rust that referenced this pull request Jul 25, 2019
@Centril
Rollup merge of rust-lang#62822 - RalfJung:pointers, r=Centril
8bc8562 
Improve some pointer-related documentation
@Centril Centril mentioned this pull request Jul 25, 2019
Closed
Centril added a commit to Centril/rust that referenced this pull request Jul 25, 2019
@Centril
Rollup merge of rust-lang#62822 - RalfJung:pointers, r=Centril
a534c37 
Improve some pointer-related documentation
@Centril Centril mentioned this pull request Jul 25, 2019
Merged
bors added a commit that referenced this pull request Jul 25, 2019
@bors
Auto merge of #62990 - Centril:rollup-k9n0hvs, r=Centril
1863067 
Rollup of 15 pull requests

Successful merges:

 - #60066 (Stabilize the type_name intrinsic in core::any)
 - #60938 (rustdoc: make #[doc(include)] relative to the containing file)
 - #61884 (Stablize Euclidean Modulo (feature euclidean_division))
 - #61890 (Fix some sanity checks)
 - #62528 (Add joining slices of slices with a slice separator, not just a single item)
 - #62707 (Add tests for overlapping explicitly dropped locals in generators)
 - #62735 (Turn `#[global_allocator]` into a regular attribute macro)
 - #62822 (Improve some pointer-related documentation)
 - #62887 (Make the parser TokenStream more resilient after mismatched delimiter recovery)
 - #62921 (Add method disambiguation help for trait implementation)
 - #62930 (Add test for #51559)
 - #62942 (Use match ergonomics in Condvar documentation)
 - #62977 (Fix inconsistent highlight blocks.)
 - #62978 (Remove `cfg(bootstrap)` code for array implementations)
 - #62981 (Add note suggesting to borrow a String argument to find)

Failed merges:

 - #62964 (clarify and unify some type test names)

r? @ghost
@bors bors merged commit 65cf10d into rust-lang:master Jul 26, 2019
@RalfJung RalfJung deleted the pointers branch July 29, 2019 08:02
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