pub fn range<R>(range: R, bounds: RangeTo<usize>) -> Range<usize>ⓘNotable traits for Range<A>impl<A> Iterator for Range<A> where
A: Step, type Item = A; where
R: RangeBounds<usize>, 🔬 This is a nightly-only experimental API. (
slice_range)Expand description
Performs bounds-checking of a range.
This method is similar to Index::index for slices, but it returns a
Range equivalent to range. You can use this method to turn any range
into start and end values.
bounds is the range of the slice to use for bounds-checking. It should
be a RangeTo range that ends at the length of the slice.
The returned Range is safe to pass to slice::get_unchecked and
slice::get_unchecked_mut for slices with the given range.
Panics
Panics if range would be out of bounds.
Examples
#![feature(slice_range)]
use std::slice;
let v = [10, 40, 30];
assert_eq!(1..2, slice::range(1..2, ..v.len()));
assert_eq!(0..2, slice::range(..2, ..v.len()));
assert_eq!(1..3, slice::range(1.., ..v.len()));Panics when Index::index would panic:
ⓘ
#![feature(slice_range)]
use std::slice;
slice::range(2..1, ..3);ⓘ
#![feature(slice_range)]
use std::slice;
slice::range(1..4, ..3);ⓘ
#![feature(slice_range)]
use std::slice;
slice::range(1..=usize::MAX, ..3);