half_open_range_patterns_in_slices

The tracking issue for this feature is: #67264 It is a future part of the exclusive_range_pattern feature, tracked at #37854.

This feature allow using top-level half-open range patterns in slices.

#![feature(half_open_range_patterns_in_slices)]

fn main() {
    let xs = [13, 1, 5, 2, 3, 1, 21, 8];
    let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs else { return; };
}

Note that this feature is not required if the patterns are wrapped between parenthesis.

fn main() {
    let xs = [13, 1];
    let [(a @ 3..), c] = xs else { return; };
}