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| author | Matthew Piziak <matthew.piziak@gmail.com> | 2016-08-17 14:12:19 -0400 |
|---|---|---|
| committer | Matthew Piziak <matthew.piziak@gmail.com> | 2016-08-26 11:54:32 -0400 |
| commit | 50e0fbc9042856527dc35a0dfd9a7716dcf69ccd (patch) | |
| tree | 94435efec5aa505fe631296b5096c6689d411334 /src/libcore | |
| parent | eaf71f8d1034f16140791f566cab3f3c9a0bf96a (diff) | |
| download | rust-50e0fbc9042856527dc35a0dfd9a7716dcf69ccd.tar.gz rust-50e0fbc9042856527dc35a0dfd9a7716dcf69ccd.zip | |
accumulate vector and assert for RangeFrom and RangeInclusive examples
PR #35695 for `Range` was approved, so it seems that this side-effect-free style is preferred for Range* examples. This PR performs the same translation for `RangeFrom` and `RangeInclusive`. It also removes what looks to be an erroneously commented line for `#![feature(step_by)]`, and an unnecessary primitive-type annotation in `0u8..`. add `fn main` wrappers to enable Rust Playground "Run" button
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/iter/range.rs | 32 |
1 files changed, 10 insertions, 22 deletions
diff --git a/src/libcore/iter/range.rs b/src/libcore/iter/range.rs index 8408e5d88b4..66d05d81d80 100644 --- a/src/libcore/iter/range.rs +++ b/src/libcore/iter/range.rs @@ -263,14 +263,12 @@ impl<A: Step> ops::RangeFrom<A> { /// # Examples /// /// ``` - /// # #![feature(step_by)] - /// - /// for i in (0u8..).step_by(2).take(10) { - /// println!("{}", i); + /// #![feature(step_by)] + /// fn main() { + /// let result: Vec<_> = (0..).step_by(2).take(5).collect(); + /// assert_eq!(result, vec![0, 2, 4, 6, 8]); /// } /// ``` - /// - /// This prints the first ten even natural integers (0 to 18). #[unstable(feature = "step_by", reason = "recent addition", issue = "27741")] pub fn step_by(self, by: A) -> StepBy<A, Self> { @@ -291,8 +289,10 @@ impl<A: Step> ops::Range<A> { /// /// ``` /// #![feature(step_by)] - /// let result: Vec<_> = (0..10).step_by(2).collect(); - /// assert_eq!(result, vec![0, 2, 4, 6, 8]); + /// fn main() { + /// let result: Vec<_> = (0..10).step_by(2).collect(); + /// assert_eq!(result, vec![0, 2, 4, 6, 8]); + /// } /// ``` #[unstable(feature = "step_by", reason = "recent addition", issue = "27741")] @@ -315,20 +315,8 @@ impl<A: Step> ops::RangeInclusive<A> { /// ``` /// #![feature(step_by, inclusive_range_syntax)] /// - /// for i in (0...10).step_by(2) { - /// println!("{}", i); - /// } - /// ``` - /// - /// This prints: - /// - /// ```text - /// 0 - /// 2 - /// 4 - /// 6 - /// 8 - /// 10 + /// let result: Vec<_> = (0...10).step_by(2).collect(); + /// assert_eq!(result, vec![0, 2, 4, 6, 8, 10]); /// ``` #[unstable(feature = "step_by", reason = "recent addition", issue = "27741")] |