Struct Range 

pub struct Range {
    pub int_min: i64,
    pub int_max: i64,
    pub dbl_min: f64,
    pub dbl_max: f64,
}

What one key’s values span, in whichever of the two number lines they live on.

Empty is min > max, which every test below rejects without a special case: an Lt against a min of i64::MAX is false, a Gt against a max of i64::MIN is false, and Eq needs both.

Fields

int_min: i64

int_max: i64

dbl_min: f64

dbl_max: f64

Implementations

impl Range

const EMPTY: Range

Nothing seen yet: both intervals empty.

pub const ANY: Range

“I cannot describe this key” — both intervals unbounded, so every probe against it answers maybe. What a lexicographically-compared string value degrades a key to.

fn int(&mut self, v: i64)

fn float(&mut self, v: f64)

NaN is dropped rather than folded in. partial_cmp returns None against it, so no operator matches a NaN row and no interval has to cover one — and min/max over a NaN would poison the interval that covers the rest.

Trait Implementations

impl Clone for Range

fn clone(&self) -> Range

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Range

impl Debug for Range

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Range

fn eq(&self, other: &Range) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Range