Struct std::fmt::Error

pub struct Error;

The error type which is returned from formatting a message into a stream.

This type does not support transmission of an error other than that an error occurred. Any extra information must be arranged to be transmitted through some other means.

An important thing to remember is that the type fmt::Error should not be confused with std::io::Error or std::error::Error, which you may also have in scope.

Examples

use std::fmt::{self, write};

let mut output = String::new();
if let Err(fmt::Error) = write(&mut output, format_args!("Hello {}!", "world")) {
    panic!("An error occurred");
}

Struct std::fmt::Error

Examples

Trait Implementations

impl Clone for Error

pub fn clone(&self) -> Error

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

impl Debug for Error

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

impl Default for Error

pub fn default() -> Error

impl Display for Error

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

impl Error for Error

fn description(&self) -> &str

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

fn backtrace(&self) -> Option<&Backtrace>

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

impl Hash for Error

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

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

impl Ord for Error

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

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

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

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

impl PartialEq<Error> for Error

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

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

impl PartialOrd<Error> for Error

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

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

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

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

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

impl Copy for Error

impl Eq for Error

impl StructuralEq for Error

impl StructuralPartialEq for Error

Auto Trait Implementations

impl RefUnwindSafe for Error

impl Send for Error

impl Sync for Error

impl Unpin for Error

impl UnwindSafe for Error

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T> ToString for T where T: Display + ?Sized,

pub default fn to_string(&self) -> String

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T> ToString for T where
T: Display + ?Sized,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,