Struct TryFromIntError 

pub struct TryFromIntError(/* private fields */);

Returned when an integer conversion in this crate does not fit.

One type covers every direction – U256 or I256 down to a narrower primitive, and between the two 256-bit types – and every reason, whether the value is out of the target’s range or, converting to an unsigned type, negative. That is what core::num::TryFromIntError does: u8::try_from(300u32) and u8::try_from(-1i32) both yield it, with no split by the source’s signedness and no payload to inspect. Splitting it here would add a type without adding information.

It is a distinct type from core::num::TryFromIntError only because that one cannot be constructed outside core.

Trait Implementations

impl Clone for TryFromIntError

fn clone(&self) -> TryFromIntError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TryFromIntError

impl Debug for TryFromIntError

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

Formats the value using the given formatter.

impl Display for TryFromIntError

Available on crate feature fmt only.

Gated on fmt like every other Display in this crate: the message is a string literal, and a guest build that never formats the error should not carry it. std implies fmt, so the Error impl below always has its Display bound.

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

Formats the value using the given formatter.

impl Eq for TryFromIntError

impl Error for TryFromIntError

Available on crate feature std only.

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for TryFromIntError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TryFromIntError