Trait steed::collections::range::RangeArgument
[−]
[src]
pub trait RangeArgument<T> {
fn start(&self) -> Option<&T> { ... }
fn end(&self) -> Option<&T> { ... }
}🔬 This is a nightly-only experimental API. (collections_range)
waiting for dust to settle on inclusive ranges
RangeArgument is implemented by Rust's built-in range types, produced
by range syntax like .., a.., ..b or c..d.
Provided Methods
fn start(&self) -> Option<&T>
🔬 This is a nightly-only experimental API. (collections_range)
waiting for dust to settle on inclusive ranges
Start index (inclusive)
Return start value if present, else None.
Examples
#![feature(collections)] #![feature(collections_range)] extern crate collections; use collections::range::RangeArgument; assert_eq!((..10).start(), None); assert_eq!((3..10).start(), Some(&3));
fn end(&self) -> Option<&T>
🔬 This is a nightly-only experimental API. (collections_range)
waiting for dust to settle on inclusive ranges
End index (exclusive)
Return end value if present, else None.
Examples
#![feature(collections)] #![feature(collections_range)] extern crate collections; use collections::range::RangeArgument; assert_eq!((3..).end(), None); assert_eq!((3..10).end(), Some(&10));