Tuple elements #6590
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Tuple elements #6590
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It uses the private field of TCB head to store stack limit. I tested on my Raspberry PI. A simple hello world program ran without any problem. However, for a more complex program, it segfaulted as rust-lang#6231.
This pull request adds following methods and traits.
```rust
pub trait IteratorUtil {
(snip)
fn filter_map<'r, B>(self, f: &'r fn(A) -> Option<B>) -> FilterMapIterator<'r, A, B, Self>;
(snip)
fn to_vec(self) -> ~[A];
fn nth(&mut self, n: uint) -> A;
fn first(&mut self) -> A;
fn last(&mut self) -> A;
fn fold<B>(&mut self, start: B, f: &fn(B, A) -> B) -> B;
fn count(&mut self) -> uint;
fn all(&mut self, f: &fn(&A) -> bool) -> bool;
fn any(&mut self, f: &fn(&A) -> bool) -> bool;
}
pub trait AdditiveIterator<A> {
fn sum(&mut self) -> A;
}
pub trait MultiplicativeIterator<A> {
fn product(&mut self) -> A;
}
pub trait OrdIterator<A> {
fn max(&mut self) -> Option<A>;
fn min(&mut self) -> Option<A>;
}
```
…rove code clarity
…ry uses of the return keyword
|
woops, PRed this on master |
flip1995
pushed a commit
to flip1995/rust
that referenced
this pull request
Feb 6, 2025
Counting in bytes for a pointer to `u8` is legitimate and must not
trigger the lint. Also, this prevents linting the
`{std,core}::ptr::write_bytes` as it manipulates bytes.
Fix rust-lang#6590
changelog: [`size_of_in_element_count`]: do not lint if the pointee type
is `u8`
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This commit implements methods for accessing elements for for n-tuples, where n ranges from 2 to 12. The traits are re-exported in
core::preludeso you can use them from regular Rust code.Here is an example of one of the methods in use: