Enum OverflowMode 

pub enum OverflowMode {
    None,
    Lazy,
    StrictUnder,
    Strict,
}

Variants

None

Strict-Underflow, No overflow checking

Lazy

Lazy underflow, Lazy overflow checking; lose all information unless values are known to be in valid range

StrictUnder

Strict underflow, Lazy overflow checking; always check unsignedness (non-negativity) but lazy for upper-bound

Strict

Strict underflow, Strict overflow checking; always check values in valid range for type

Implementations

impl OverflowMode

pub(crate) const ERROR: &'static str = "expected one of `none`, `lazy`, or `strict`"

Trait Implementations

impl Clone for OverflowMode

fn clone(&self) -> OverflowMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OverflowMode

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

Formats the value using the given formatter.

impl Default for OverflowMode

fn default() -> OverflowMode

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OverflowMode

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for OverflowMode

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

Formats the value using the given formatter.

impl FromStr for OverflowMode

type Err = &'static str

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 TryFrom<String> for OverflowMode

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: String) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for OverflowMode