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In US english, "that" is used in restrictive clauses in place of
"which", and often affects the meaning of sentences.
In UK english and many dialects, no distinction is
made.
While Rust devs want to avoid unproductive pedanticism, it is worth at
least being uniform in documentation such as:
http://doc.rust-lang.org/std/iter/index.html
and also in cases where correct usage of US english clarifies the
sentence.
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This commit collapses the various prelude traits for slices into just one trait:
* SlicePrelude/SliceAllocPrelude => SliceExt
* CloneSlicePrelude/CloneSliceAllocPrelude => CloneSliceExt
* OrdSlicePrelude/OrdSliceAllocPrelude => OrdSliceExt
* PartialEqSlicePrelude => PartialEqSliceExt
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This test would read with a timeout and then send a UDP message, expecting the
message to be received. The receiving port, however, was bound in the child
thread so it could be the case that the timeout and send happens before the
child thread runs. To remedy this we just bind the port before the child thread
runs, moving it into the child later on.
cc #19120
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boxed `FnOnce` closures.
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"ZN...E" form too.
Also, print PC displacement from symbols.
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These probably happened during the merge of the commit that made `Copy` opt-in.
Also, convert the last occurence of `/**` to `///` in `src/libstd/num/strconv.rs`
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Fixes #15499.
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These probably happened during the merge of the commit that made `Copy` opt-in.
Also, convert the last occurence of `/**` to `///` in `src/libstd/num/strconv.rs`
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Brief note: This does *not* affect anything in the prelude
Part of #19253
All this does is remove the reexporting of Result and Option from their
respective modules. More core reexports might be removed, but these ones
are the safest to remove since these enums (and their variants) are included in
the prelude.
Depends on https://github.com/rust-lang/rust/pull/19407 which is merged, but might need a new snapshot
[breaking-change]
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Fixes #19599
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pthread_key_create can be 0.
addresses issue #19567.
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Brief note: This does *not* affect anything in the prelude
Part of #19253
All this does is remove the reexporting of Result and Option from their
respective modules. More core reexports might be removed, but these ones
are the safest to remove since these enums (and their variants) are included in
the prelude.
[breaking-change]
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The names expected and actual are not used anymore in the output. It also
removes the confusion that the argument order is the opposite of junit.
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This change makes the compiler no longer infer whether types (structures
and enumerations) implement the `Copy` trait (and thus are implicitly
copyable). Rather, you must implement `Copy` yourself via `impl Copy for
MyType {}`.
A new warning has been added, `missing_copy_implementations`, to warn
you if a non-generic public type has been added that could have
implemented `Copy` but didn't.
For convenience, you may *temporarily* opt out of this behavior by using
`#![feature(opt_out_copy)]`. Note though that this feature gate will never be
accepted and will be removed by the time that 1.0 is released, so you should
transition your code away from using it.
This breaks code like:
#[deriving(Show)]
struct Point2D {
x: int,
y: int,
}
fn main() {
let mypoint = Point2D {
x: 1,
y: 1,
};
let otherpoint = mypoint;
println!("{}{}", mypoint, otherpoint);
}
Change this code to:
#[deriving(Show)]
struct Point2D {
x: int,
y: int,
}
impl Copy for Point2D {}
fn main() {
let mypoint = Point2D {
x: 1,
y: 1,
};
let otherpoint = mypoint;
println!("{}{}", mypoint, otherpoint);
}
This is the backwards-incompatible part of #13231.
Part of RFC #3.
[breaking-change]
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Now that we have an overloaded comparison (`==`) operator, and that `Vec`/`String` deref to `[T]`/`str` on method calls, many `as_slice()`/`as_mut_slice()`/`to_string()` calls have become redundant. This patch removes them. These were the most common patterns:
- `assert_eq(test_output.as_slice(), "ground truth")` -> `assert_eq(test_output, "ground truth")`
- `assert_eq(test_output, "ground truth".to_string())` -> `assert_eq(test_output, "ground truth")`
- `vec.as_mut_slice().sort()` -> `vec.sort()`
- `vec.as_slice().slice(from, to)` -> `vec.slice(from_to)`
---
Note that e.g. `a_string.push_str(b_string.as_slice())` has been left untouched in this PR, since we first need to settle down whether we want to favor the `&*b_string` or the `b_string[]` notation.
This is rebased on top of #19167
cc @alexcrichton @aturon
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Also fixes some conflicting module names.
Signed-off-by: Peter Atashian <retep998@gmail.com>
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Fixes #19599
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In regards to:
https://github.com/rust-lang/rust/issues/19253#issuecomment-64836729
This commit:
* Changes the #deriving code so that it generates code that utilizes fewer
reexports (in particur Option::\*, Result::\*, and Ordering::\*), which is necessary to
remove those reexports in the future
* Changes other areas of the codebase so that fewer reexports are utilized
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Previously, `BufWriter::write` would just return an `std::io::OtherIoError` if someone attempted to write past the end of the wrapped buffer. This pull request changes the error to support partial writes and return a `std::io::ShortWrite`, or an `io::io::EndOfFile` if it's been fully exhausted.
I've also optimized away a bounds check inside `BufWriter::write`, which should help shave off some nanoseconds in an inner loops.
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In regards to:
https://github.com/rust-lang/rust/issues/19253#issuecomment-64836729
This commit:
* Changes the #deriving code so that it generates code that utilizes fewer
reexports (in particur Option::* and Result::*), which is necessary to
remove those reexports in the future
* Changes other areas of the codebase so that fewer reexports are utilized
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pthread_key_create can be 0.
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After the library successfully called `fork(2)`, the child does several
setup works such as setting UID, GID and current directory before it
calls `exec(2)`. When those setup works failed, the child exits but the
parent didn't call `waitpid(2)` and left it as a zombie.
This patch also add several sanity checks. They shouldn't make any
noticeable impact to runtime performance.
The new test case in `libstd/io/process.rs` calls the ps command to check
if the new code can really reap a zombie.
The output of `ps -A -o pid,sid,command` should look like this:
```
PID SID COMMAND
1 1 /sbin/init
2 0 [kthreadd]
3 0 [ksoftirqd/0]
...
12562 9237 ./spawn-failure
12563 9237 [spawn-failure] <defunct>
12564 9237 [spawn-failure] <defunct>
...
12592 9237 [spawn-failure] <defunct>
12593 9237 ps -A -o pid,sid,command
12884 12884 /bin/zsh
12922 12922 /bin/zsh
...
```
where `./spawn-failure` is my test program which intentionally leaves many
zombies. Filtering the output with the "SID" (session ID) column is
a quick way to tell if a process (zombie) was spawned by my own test
program. Then the number of "defunct" lines is the number of zombie
children.
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io::stdin returns a new `BufferedReader` each time it's called, which
results in some very confusing behavior with disappearing output. It now
returns a `StdinReader`, which wraps a global singleton
`Arc<Mutex<BufferedReader<StdReader>>`. `Reader` is implemented directly
on `StdinReader`. However, `Buffer` is not, as the `fill_buf` method is
fundamentaly un-thread safe. A `lock` method is defined on `StdinReader`
which returns a smart pointer wrapping the underlying `BufferedReader`
while guaranteeing mutual exclusion.
Code that treats the return value of io::stdin as implementing `Buffer`
will break. Add a call to `lock`:
```rust
io::stdin().read_line();
// =>
io::stdin().lock().read_line();
```
Closes #14434
[breaking-change]
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