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Update BitSet docs to correct type in one more spot
removed accidental file
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instead of AsRef
Conflicts:
src/libcollections/slice.rs
src/libcollections/str.rs
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This commit is an implementation of [RFC 1066][rfc] where the conclusion was
that leaking a value is a safe operation in Rust code, so updating the signature
of this function follows suit.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1066-safe-mem-forget.md
Closes #25186
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Third doc backport
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Ideally this trait implementation would be unstable, requiring crates to opt-in
if they would like the functionality, but that's not currently how stability
works so the implementation needs to be removed entirely.
This may come back at a future date, but for now the conservative option is to
remove it.
[breaking-change]
Conflicts:
src/libcollections/vec.rs
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These implementations were intended to be unstable, but currently the stability
attributes cannot handle a stable trait with an unstable `impl` block. This
commit also audits the rest of the standard library for explicitly-`#[unstable]`
impl blocks. No others were removed but some annotations were changed to
`#[stable]` as they're defacto stable anyway.
One particularly interesting `impl` marked `#[stable]` as part of this commit
is the `Add<&[T]>` impl for `Vec<T>`, which uses `push_all` and implicitly
clones all elements of the vector provided.
Closes #24791
Conflicts:
src/libcoretest/slice.rs
src/librustc_driver/lib.rs
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Fixes #24656
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Conflicts:
src/test/run-pass/task-stderr.rs
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This API was exercised in a few tests and mirrors the `from_str_radix`
functionality of the integer types.
Conflicts:
src/doc/trpl/traits.md
src/libstd/sys/windows/fs2.rs
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This commit removes all the old casting/generic traits from `std::num` that are
no longer in use by the standard library. This additionally removes the old
`strconv` module which has not seen much use in quite a long time. All generic
functionality has been supplanted with traits in the `num` crate and the
`strconv` module is supplanted with the [rust-strconv crate][rust-strconv].
[rust-strconv]: https://github.com/lifthrasiir/rust-strconv
This is a breaking change due to the removal of these deprecated crates, and the
alternative crates are listed above.
[breaking-change]
Conflicts:
src/libstd/num/strconv.rs
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Cleaning out more deprecated items
Conflicts:
src/libcore/result.rs
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Words struct was stabilied by mistake. Unstabilize.
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This is an implementation of [RFC 1030][rfc] which adds these traits to the
prelude and additionally removes all inherent `into_iter` methods on collections
in favor of the trait implementation (which is now accessible by default).
[rfc]: https://github.com/rust-lang/rfcs/pull/1030
This is technically a breaking change due to the prelude additions and removal
of inherent methods, but it is expected that essentially no code breaks in
practice.
[breaking-change]
Closes #24538
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`s/([^\(\s]+\.)len\(\) [(?:!=)>] 0/!$1is_empty()/g`
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`s/(?<!\{ self)(?<=\.)len\(\) == 0/is_empty()/g`
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Conflicts:
src/libstd/net/ip.rs
src/libstd/sys/unix/fs.rs
src/libstd/sys/unix/mod.rs
src/libstd/sys/windows/mod.rs
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The meaning of each variant of this enum was somewhat ambiguous and it's uncler
that we wouldn't even want to add more enumeration values in the future. As a
result this error has been altered to instead become an opaque structure.
Learning about the "first invalid byte index" is still an unstable feature, but
the type itself is now stable.
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Right now, if the user requests to increase the vector size via reserve() or push_back() and the request brings the attempted memory above usize::MAX, we panic.
With this change there is only a panic if the minimum requested memory that could meet the requirement is above usize::MAX- otherwise it simply requests its largest capacity possible, usize::MAX.
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with "let" when building on stage0. So change the error
message to a static const.
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Signed-off-by: Tibor Benke <ihrwein@gmail.com>
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...to be less confusing. Since 0 is the smallest number possible for usize, it doesn't make sense to mention it if it's already included, and it should be more clear that the length of the vector is a valid index with the new wording.
r? @steveklabnik
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The meaning of each variant of this enum was somewhat ambiguous and it's uncler
that we wouldn't even want to add more enumeration values in the future. As a
result this error has been altered to instead become an opaque structure.
Learning about the "first invalid byte index" is still an unstable feature, but
the type itself is now stable.
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Signed-off-by: Tibor Benke <ihrwein@gmail.com>
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less confusing. Since 0 is the smallest number possible for usize, it doesn't make sense to mention it if it's already included, and it should be more clear that the length of the vector is a valid index with the new wording.
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Previously it could not be implemented for types outside `libcore/iter.rs` due
to coherence issues.
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In addition to being nicer, this also allows you to use `sum` and `product` for
iterators yielding custom types aside from the standard integers.
Due to removing the `AdditiveIterator` and `MultiplicativeIterator` trait, this
is a breaking change.
[breaking-change]
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This adds the missing methods and turns `str::pattern` in a user facing module, as per RFC.
This also contains some big internal refactorings:
- string iterator pairs are implemented with a central macro to reduce redundancy
- Moved all tests from `coretest::str` into `collectionstest::str` and left a note to prevent the two sets of tests drifting apart further.
See https://github.com/rust-lang/rust/issues/22477
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CharEq.
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- Added missing reverse versions of methods
- Added [r]matches()
- Generated the string pattern iterators with a macro
- Added where bounds to the methods returning reverse iterators
for better error messages.
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This was brought up in IRC by a confused reader.
r? steveklabnik
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The existing impl had the too-strong requirement of `Clone`, when only
`ToOwned` was needed.
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Right now comparing a `&String` (or a `&Cow`) to a `&str` requires redundant borrowing of the latter. Implementing `PartialEq<str>` tries to avoid this limitation.
```rust
struct Foo (String);
fn main () {
let s = Foo("foo".to_string());
match s {
Foo(ref x) if x == &"foo" => println!("foo!"),
// avoid this -----^
_ => {}
}
}
```
I was hoping that #23521 would solve this but it didn't work out.
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This was brought up in IRC by a confused reader.
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The existing impl had the too-strong requirement of `Clone`, when only
`ToOwned` was needed.
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These constants are small and can fit even in `u8`, but semantically they have type `usize` because they denote sizes and are almost always used in `usize` context. The change of their type to `u32` during the integer audit led only to the large amount of `as usize` noise (see the second commit, which removes this noise).
This is a minor [breaking-change] to an unstable interface.
r? @aturon
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r? @steveklabnik
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