method Range.contains

lo <= x && x < hi for any ordered T (D-3563); the same as x in lo..hi.

Example:

fn main() io {
  print("{(1..5).contains(&4)} {(1..5).contains(&5)}")
}

true false

pub(api) fn contains(x: &T) -> bool where T: Ord

Complexity. O(1).

Since. 1.0.0-beta

Parameters

Returns

bool where T: Ord

Effects

none declared (pure unless the body says otherwise)

Defined in: std/core/iter.oxl:927