Module core::range

🔬This is a nightly-only experimental API. (new_range_api #125687)

Experimental replacement range types

The types within this module are meant to replace the existing Range, RangeInclusive, and RangeFrom types in a future edition.

#![feature(new_range_api)]
use core::range::{Range, RangeFrom, RangeInclusive};

let arr = [0, 1, 2, 3, 4];
assert_eq!(arr[                      ..   ], [0, 1, 2, 3, 4]);
assert_eq!(arr[                      .. 3 ], [0, 1, 2      ]);
assert_eq!(arr[                      ..=3 ], [0, 1, 2, 3   ]);
assert_eq!(arr[     RangeFrom::from(1..  )], [   1, 2, 3, 4]);
assert_eq!(arr[         Range::from(1..3 )], [   1, 2      ]);
assert_eq!(arr[RangeInclusive::from(1..=3)], [   1, 2, 3   ]);

Modules

• legacyExperimental
  Legacy range types

Structs

• RangeFull
  An unbounded range (..).
• RangeTo
  A range only bounded exclusively above (..end).
• RangeToInclusive
  A range only bounded inclusively above (..=end).
• IterRangeExperimental
  By-value Range iterator.
• IterRangeFromExperimental
  By-value RangeFrom iterator.
• IterRangeInclusiveExperimental
  By-value RangeInclusive iterator.
• RangeExperimental
  A (half-open) range bounded inclusively below and exclusively above (start..end in a future edition).
• RangeFromExperimental
  A range only bounded inclusively below (start..).
• RangeInclusiveExperimental
  A range bounded inclusively below and above (start..=end).

Enums

• Bound
  An endpoint of a range of keys.

Traits

• RangeBounds
  RangeBounds is implemented by Rust’s built-in range types, produced by range syntax like .., a.., ..b, ..=c, d..e, or f..=g.
• OneSidedRangeExperimental
  OneSidedRange is implemented for built-in range types that are unbounded on one side. For example, a.., ..b and ..=c implement OneSidedRange, but .., d..e, and f..=g do not.
• StepExperimental
  Objects that have a notion of successor and predecessor operations.