std::num

Struct ParseFloatError

1.0.0 ยท Source 
pub struct ParseFloatError { /* private fields */ }
Expand description

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.

ยงExample

use std::str::FromStr;

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

Trait Implementationsยง

1.0.0 ยท Sourceยง

impl Clone for ParseFloatError

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fn clone(&self) -> ParseFloatError

Returns a duplicate of the value. Read more
1.0.0 ยท Sourceยง

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

Performs copy-assignment from source. Read more
1.0.0 ยท Sourceยง

impl Debug for ParseFloatError

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

Formats the value using the given formatter. Read more
1.0.0 ยท Sourceยง

impl Display for ParseFloatError

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

Formats the value using the given formatter. Read more
1.0.0 ยท Sourceยง

impl Error for ParseFloatError

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fn description(&self) -> &str

๐Ÿ‘ŽDeprecated since 1.42.0: use the Display impl or to_string()
Read more
1.30.0 ยท Sourceยง

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

Returns the lower-level source of this error, if any. Read more
1.0.0 ยท Sourceยง

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

๐Ÿ‘ŽDeprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

๐Ÿ”ฌThis is a nightly-only experimental API. (error_generic_member_access #99301)
Provides type-based access to context intended for error reports. Read more
1.0.0 ยท Sourceยง

impl PartialEq for ParseFloatError

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 ยท Sourceยง

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.0.0 ยท Sourceยง

impl Eq for ParseFloatError

1.0.0 ยท Sourceยง

impl StructuralPartialEq for ParseFloatError

Auto Trait Implementationsยง

Blanket Implementationsยง

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

๐Ÿ”ฌThis is a nightly-only experimental API. (clone_to_uninit #126799)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.