Updated code to work in alpha1 (2015-03-10) + added testcase#3
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Made lib itself compile in newer Rust. Added test calculating fib
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Wow, I somehow totally missed this PR at the time, but I think it is no longer relevant. Thanks anyhow! |
cuviper
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Mar 28, 2017
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 rayon-rs#3.
[breaking-change]
huonw
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Feb 14, 2019
These adaptors consume may many elements before deferring to a base folder's fullness checks, and so they need to be performed manually. For the `filter`s, there's no way to do it manually (rayon-rs#632), so the specialisations just have to be removed. For `fold` and `find_any` this can be done with a `take_while`. This extends the octillion tests to confirm this behaviour. This makes a program like the following slightly slower compared to the direct `consume_iter` without a check, but it's still faster than the non-specialized form. ``` extern crate test; extern crate rayon; use rayon::prelude::*; fn main() { let count = (0..std::u32::MAX) .into_par_iter() .map(test::black_box) .find_any(|_| test::black_box(false)); println!("{:?}", count); } ``` ``` $ hyperfine ./find-original ./find-no-check ./find-check Benchmark rayon-rs#1: ./find-original Time (mean ± σ): 627.6 ms ± 25.7 ms [User: 7.130 s, System: 0.014 s] Range (min … max): 588.4 ms … 656.4 ms 10 runs Benchmark rayon-rs#2: ./find-no-check Time (mean ± σ): 481.5 ms ± 10.8 ms [User: 5.415 s, System: 0.013 s] Range (min … max): 468.9 ms … 498.2 ms 10 runs Benchmark rayon-rs#3: ./find-check Time (mean ± σ): 562.3 ms ± 11.8 ms [User: 6.363 s, System: 0.013 s] Range (min … max): 542.5 ms … 578.2 ms 10 runs ``` (find-original = without specialization, find-no-check = custom `consume_iter` without `take_while`, find-check = this commit)
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Made lib itself compile in newer Rust.
Added test calculating fib
Not sure if this is the best solution, but I made it compile and the tests seems fine.