Struct tor_units::BoundedInt32

pub struct BoundedInt32<const LOWER: i32, const UPPER: i32> { /* fields omitted */ }

A 32-bit signed integer with a restricted range.

This type holds an i32 value such that LOWER <= value <= UPPER

Limitations

If you try to instantiate this type with LOWER > UPPER, you will get an uninhabitable type. It would be better if we could check that at compile time, and prevent such types from being named.

Implementations

impl<const LOWER: i32, const UPPER: i32> BoundedInt32<LOWER, UPPER>

pub const LOWER: i32

Lower bound

pub const UPPER: i32

Upper bound

pub fn get(&self) -> i32

Return the underlying i32 value.

This value will always be between Self::LOWER and Self::UPPER, inclusive.

pub fn saturating_new(val: i32) -> Self

If val is within range, return a new BoundedInt32 wrapping it; othwerwise, clamp it to the upper or lower bound as appropriate.

pub fn checked_new(val: i32) -> Result<Self, Error>

If val is an acceptable value inside the range for this type, return a new BoundedInt32. Otherwise return an error.

pub fn saturating_from(val: i32) -> Self

Convert from the underlying type, clamping to the upper or lower bound if needed.

Panics

This function will panic if UPPER < LOWER.

pub fn saturating_from_str(s: &str) -> Result<Self, Error>

Convert from a string, clamping to the upper or lower bound if needed.

Limitations

If the input is a number that cannot be represented as an i32, then we return an error instead of clamping it.

Trait Implementations

impl<const LOWER: i32, const UPPER: i32> Clone for BoundedInt32<LOWER, UPPER>

fn clone(&self) -> BoundedInt32<LOWER, UPPER>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<const LOWER: i32, const UPPER: i32> Debug for BoundedInt32<LOWER, UPPER>

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

Formats the value using the given formatter.

impl<const L: i32, const U: i32> Display for BoundedInt32<L, U>

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

Formats the value using the given formatter.

impl From<BoundedInt32<0_i32, 1_i32>> for bool

fn from(val: BoundedInt32<0, 1>) -> bool

Performs the conversion.

impl From<BoundedInt32<0_i32, 255_i32>> for u8

fn from(val: BoundedInt32<0, 255>) -> u8

Performs the conversion.

impl From<BoundedInt32<1_i32, { i32::MAX }>> for u64

fn from(val: BoundedInt32<1, { i32::MAX }>) -> u64

Performs the conversion.

impl<const L: i32, const U: i32> From<BoundedInt32<L, U>> for i32

fn from(val: BoundedInt32<L, U>) -> i32

Performs the conversion.

impl<const L: i32, const U: i32> From<BoundedInt32<L, U>> for f64

fn from(val: BoundedInt32<L, U>) -> f64

Performs the conversion.

impl<const L: i32, const H: i32> FromStr for BoundedInt32<L, H>

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl<const L: i32, const H: i32> TryFrom<i32> for BoundedInt32<L, H>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(val: i32) -> Result<Self, Self::Error>

Performs the conversion.

impl<const LOWER: i32, const UPPER: i32> Copy for BoundedInt32<LOWER, UPPER>