Trait std::collections::range::RangeArgument
[−]
[src]
pub trait RangeArgument<T> { fn start(&self) -> Option<&T> { ... } fn end(&self) -> Option<&T> { ... } }
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>
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));Run