Struct Range

pub struct Range {
    pub min: u64,
    pub max: u64,
}

Represent a closed range [min, max].

Fields

min: u64

max: u64

Implementations

impl Range

pub fn new<T>(min: T, max: T) -> Self

where u64: From<T>,

Create a instance of Range with given min and max.

Panic

• if min is bigger than max
• if min == 0 && max == u64:MAX

pub fn with_size<T>(base: T, size: T) -> Self

where u64: From<T>,

Create a instance of Range with given base and size.

Panic

• if base + size wraps around
• if base == 0 && size == u64::MAX

pub fn new_point<T>(value: T) -> Self

where u64: From<T>,

Create a instance of Range containing only the point value.

pub fn len(&self) -> u64

Get size of the range.

pub fn is_empty(&self) -> bool

Check whether the range is empty.

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

Check whether two Range objects intersect with each other.

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

Check whether another Range object is fully covered by this range.

pub fn align_to(&self, align: u64) -> Option<Range>

Create a new instance of Range with min aligned to align.

Examples

extern crate dbs_allocator;
use dbs_allocator::Range;

let a = Range::new(2u32, 6u32);
assert_eq!(a.align_to(0), Some(Range::new(2u32, 6u32)));
assert_eq!(a.align_to(1), Some(Range::new(2u16, 6u16)));
assert_eq!(a.align_to(2), Some(Range::new(2u64, 6u64)));
assert_eq!(a.align_to(4), Some(Range::new(4u8, 6u8)));
assert_eq!(a.align_to(8), None);
assert_eq!(a.align_to(3), None);
let b = Range::new(2u8, 2u8);
assert_eq!(b.align_to(2), Some(Range::new(2u8, 2u8)));

Trait Implementations

impl Clone for Range

fn clone(&self) -> Range

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Range

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

Formats the value using the given formatter.

impl Hash for Range

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Range

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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 PartialOrd for Range

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Range

impl Eq for Range

impl StructuralPartialEq for Range