# Static rustc_lint::builtin::NON_CONTIGUOUS_RANGE_ENDPOINTS

source ·

    pub static NON_CONTIGUOUS_RANGE_ENDPOINTS: &'static Lint

Expand description

The `non_contiguous_range_endpoints` lint detects likely off-by-one errors when using exclusive range patterns.

#### §Example

    let x = 123u32;
    match x {
        0..100 => { println!("small"); }
        101..1000 => { println!("large"); }
        _ => { println!("larger"); }
    }

{{produces}}

#### §Explanation

It is likely a mistake to have range patterns in a match expression that miss out a single number. Check that the beginning and end values are what you expect, and keep in mind that with `..=` the right bound is inclusive, and with `..` it is exclusive.