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.
use std::fmt::{self, write}; let mut output = String::new(); match write(&mut output, format_args!("Hello {}!", "world")) { Err(fmt::Error) => panic!("An error occurred"), _ => (), }
impl Default for Error
[src]
fn default() -> Error
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Returns the "default value" for a type. Read more
impl Clone for Error
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fn clone(&self) -> Error
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl PartialOrd<Error> for Error
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fn partial_cmp(&self, __arg_0: &Error) -> Option<Ordering>
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This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, other: &Rhs) -> bool
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This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
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This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
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This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
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This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl Eq for Error
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impl Hash for Error
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fn hash<__H>(&self, __arg_0: &mut __H) where
__H: Hasher,
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Display for Error
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more
impl Copy for Error
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impl Ord for Error
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fn cmp(&self, __arg_0: &Error) -> Ordering
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This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
impl PartialEq<Error> for Error
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fn eq(&self, __arg_0: &Error) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rhs) -> bool
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This method tests for !=
.
impl Debug for Error
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fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more
impl Error for Error
fn description(&self) -> &str
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A short description of the error. Read more
fn cause(&self) -> Option<&Error>
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The lower-level cause of this error, if any. Read more
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/fmt/struct.Error.html