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Merge pull request rust-lang#65 from oli-obk/master
small fixes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
|
|
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| //error-pattern: no mir for `std::panicking::panicking` | ||
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| use std::sync::Mutex; | ||
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| fn par_for<I, F>(iter: I, f: F) | ||
| where I: Iterator, | ||
| I::Item: Send, | ||
| F: Fn(I::Item) + Sync | ||
| { | ||
| for item in iter { | ||
| f(item) | ||
| } | ||
| } | ||
|
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| fn sum(x: &[i32]) { | ||
| let sum_lengths = Mutex::new(0); | ||
| par_for(x.windows(4), |x| { | ||
| *sum_lengths.lock().unwrap() += x.len() | ||
| }); | ||
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| assert_eq!(*sum_lengths.lock().unwrap(), (x.len() - 3) * 4); | ||
| } | ||
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| fn main() { | ||
| let mut elements = [0; 20]; | ||
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| // iterators over references into this stack frame | ||
| par_for(elements.iter_mut().enumerate(), |(i, x)| { | ||
| *x = i as i32 | ||
| }); | ||
|
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||
| sum(&elements) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
|
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|
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| #![feature(slice_patterns)] | ||
|
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| fn main() { | ||
| let mut x: &[_] = &[1, 2, 3, 4]; | ||
|
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| let mut result = vec!(); | ||
| loop { | ||
| x = match *x { | ||
| [1, n, 3, ref rest..] => { | ||
| result.push(n); | ||
| rest | ||
| } | ||
| [n, ref rest..] => { | ||
| result.push(n); | ||
| rest | ||
| } | ||
| [] => | ||
| break | ||
| } | ||
| } | ||
| assert_eq!(result, [2, 4]); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
|
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|
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| #![feature(slice_patterns)] | ||
|
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| fn main() { | ||
| assert_eq!(match [0u8; 1024] { | ||
| _ => 42_usize, | ||
| }, 42_usize); | ||
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| assert_eq!(match [0u8; 1024] { | ||
| [1, _..] => 0_usize, | ||
| [0, _..] => 1_usize, | ||
| _ => 2_usize | ||
| }, 1_usize); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
|
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||
|
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| #![feature(advanced_slice_patterns)] | ||
| #![feature(slice_patterns)] | ||
|
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| use std::fmt::Debug; | ||
|
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| fn foldl<T, U, F>(values: &[T], | ||
| initial: U, | ||
| mut function: F) | ||
| -> U where | ||
| U: Clone+Debug, T:Debug, | ||
| F: FnMut(U, &T) -> U, | ||
| { match values { | ||
| &[ref head, ref tail..] => | ||
| foldl(tail, function(initial, head), function), | ||
| &[] => { | ||
| // FIXME: call guards | ||
| let res = initial.clone(); res | ||
| } | ||
| } | ||
| } | ||
|
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| fn foldr<T, U, F>(values: &[T], | ||
| initial: U, | ||
| mut function: F) | ||
| -> U where | ||
| U: Clone, | ||
| F: FnMut(&T, U) -> U, | ||
| { | ||
| match values { | ||
| &[ref head.., ref tail] => | ||
| foldr(head, function(tail, initial), function), | ||
| &[] => { | ||
| // FIXME: call guards | ||
| let res = initial.clone(); res | ||
| } | ||
| } | ||
| } | ||
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| pub fn main() { | ||
| let x = &[1, 2, 3, 4, 5]; | ||
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| let product = foldl(x, 1, |a, b| a * *b); | ||
| assert_eq!(product, 120); | ||
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| let sum = foldr(x, 0, |a, b| *a + b); | ||
| assert_eq!(sum, 15); | ||
| } |