Docs4dev
Docs
rust / latest / std / num / struct.parsefloaterror.html

Struct std::num::ParseFloatError

pub struct ParseFloatError { /* private fields */ }

An error which can be returned when parsing a float.

This error is used as the error type for the FromStr implementation for f32 and f64.

Example

use std::str::FromStr;

if let Err(e) = f64::from_str("a.12") {
    println!("Failed conversion to f64: {e}");
}

Trait Implementations

source 
impl Clone for ParseFloatError
source 
fn clone(&self) -> ParseFloatError
Returns a copy of the value. Read more
source 
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
source 
impl Debug for ParseFloatError
source 
fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
source 
impl Display for ParseFloatError
source 
fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
source 
impl Error for ParseFloatError
source 
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
Read more
1.30.0source 
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
source 
fn cause(&self) -> Option<&dyn Error>
👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
source 
fn provide<'a>(&'a self, request: &mut Request<'a>)
🔬This is a nightly-only experimental API. (error_generic_member_access #99301)
Provides type based access to context intended for error reports. Read more
source 
impl PartialEq for ParseFloatError
source 
fn eq(&self, other: &ParseFloatError) -> bool
This method tests for self and other values to be equal, and is used by ==.
source 
fn ne(&self, other: &Rhs) -> bool
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source 
impl Eq for ParseFloatError
source 
impl StructuralEq for ParseFloatError
source 
impl StructuralPartialEq for ParseFloatError

Auto Trait Implementations

impl RefUnwindSafe for ParseFloatError
impl Send for ParseFloatError
impl Sync for ParseFloatError
impl Unpin for ParseFloatError
impl UnwindSafe for ParseFloatError

Blanket Implementations

source 
impl<T> Any for T
where
    T: 'static + ?Sized,
source 
fn type_id(&self) -> TypeId
Gets the TypeId of self. Read more
source 
impl<T> Borrow<T> for T
where
    T: ?Sized,
source 
fn borrow(&self) -> &T
Immutably borrows from an owned value. Read more
source 
impl<T> BorrowMut<T> for T
where
    T: ?Sized,
source 
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source 
impl<T> From<T> for T
source 
fn from(t: T) -> T

Returns the argument unchanged.

source 
impl<T, U> Into<U> for T
where
    U: From<T>,
source 
fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source 
impl<T> ToOwned for T
where
    T: Clone,
 
type Owned = T
The resulting type after obtaining ownership.
source 
fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
source 
fn clone_into(&self, target: &mut T)
Uses borrowed data to replace owned data, usually by cloning. Read more
source 
impl<T> ToString for T
where
    T: Display + ?Sized,
source 
default fn to_string(&self) -> String
Converts the given value to a String. Read more
source 
impl<T, U> TryFrom<U> for T
where
    U: Into<T>,
 
type Error = Infallible
The type returned in the event of a conversion error.
source 
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
Performs the conversion.
source 
impl<T, U> TryInto<U> for T
where
    U: TryFrom<T>,
 
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
source 
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
Performs the conversion.

© 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/num/struct.ParseFloatError.html