std::num

EnumIntErrorKind

1.55.0 ·Source

#[non_exhaustive]
pub enum IntErrorKind {    Empty,    InvalidDigit,    PosOverflow,    NegOverflow,    Zero,}

Expand description

Enum to store the various types of errors that can cause parsing an integer to fail.

§Example

if letErr(e) = i32::from_str_radix("a12",10) {println!("Failed conversion to i32: {:?}", e.kind());}

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

§1.55.0

Empty

Value being parsed is empty.

This variant will be constructed when parsing an empty string.

§1.55.0

InvalidDigit

Contains an invalid digit in its context.

Among other causes, this variant will be constructed when parsing a string thatcontains a non-ASCII char.

This variant is also constructed when a+ or- is misplaced within a stringeither on its own or in the middle of a number.

§1.55.0

PosOverflow

Integer is too large to store in target integer type.

§1.55.0

NegOverflow

Integer is too small to store in target integer type.

§1.55.0

Zero

Value was Zero

This variant will be emitted when the parsing string has a value of zero, whichwould be illegal for non-zero types.

Trait Implementations§

1.55.0 ·Source§

implClone forIntErrorKind

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fnclone(&self) ->IntErrorKind

Returns a duplicate of the value.Read more

1.0.0 ·Source§

fnclone_from(&mut self, source: &Self)

Performs copy-assignment fromsource.Read more

1.55.0 ·Source§

implDebug forIntErrorKind

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fnfmt(&self, f: &mutFormatter<'_>) ->Result<(),Error>

Formats the value using the given formatter.Read more

1.55.0 ·Source§

implHash forIntErrorKind

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fnhash<H>(&self, state:&mut H)
where __H:Hasher,

Feeds this value into the givenHasher.Read more

1.3.0 ·Source§

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

Feeds a slice of this type into the givenHasher.Read more

1.55.0 ·Source§

implPartialEq forIntErrorKind

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fneq(&self, other: &IntErrorKind) ->bool

Tests forself andother values to be equal, and is used by==.

1.0.0 ·Source§

fnne(&self, other:&Rhs) ->bool

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

1.55.0 ·Source§

implCopy forIntErrorKind

1.55.0 ·Source§

implEq forIntErrorKind

1.55.0 ·Source§

implStructuralPartialEq forIntErrorKind

Auto Trait Implementations§

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implUnwindSafe forIntErrorKind

Blanket Implementations§

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

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fntype_id(&self) ->TypeId

Gets theTypeId ofself.Read more

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

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fnborrow(&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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fnborrow_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 fnclone_to_uninit(&self, dest:*mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit #126799)

Performs copy-assignment fromself todest.Read more

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impl<T>From<T> for T

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fnfrom(t: T) -> T

Returns the argument unchanged.

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

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fninto(self) -> U

CallsU::from(self).

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

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

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typeOwned = T

The resulting type after obtaining ownership.

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fnto_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning.Read more

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fnclone_into(&self, target:&mut T)

Uses borrowed data to replace owned data, usually by cloning.Read more

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

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typeError =Infallible

The type returned in the event of a conversion error.

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fntry_from(value: U) ->Result<T, <T asTryFrom>::Error>

Performs the conversion.

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

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typeError = >::Error

The type returned in the event of a conversion error.

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fntry_into(self) ->Result<U, >::Error>

Performs the conversion.

Movatterモバイル変換

EnumIntErrorKind Copy item path

§Example

Variants (Non-exhaustive)§

Empty

InvalidDigit

PosOverflow

NegOverflow

Zero

Trait Implementations§

implClone forIntErrorKind

fnclone(&self) ->IntErrorKind

fnclone_from(&mut self, source: &Self)

implDebug forIntErrorKind

fnfmt(&self, f: &mutFormatter<'_>) ->Result<(),Error>

implHash forIntErrorKind

fnhash<__H>(&self, state:&mut __H)where __H:Hasher,

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

implPartialEq forIntErrorKind

fneq(&self, other: &IntErrorKind) ->bool

fnne(&self, other:&Rhs) ->bool

implCopy forIntErrorKind

implEq forIntErrorKind

implStructuralPartialEq forIntErrorKind

Auto Trait Implementations§

implFreeze forIntErrorKind

implRefUnwindSafe forIntErrorKind

implSend forIntErrorKind

implSync forIntErrorKind

implUnpin forIntErrorKind

implUnwindSafe forIntErrorKind

Blanket Implementations§

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

fntype_id(&self) ->TypeId

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

fnborrow(&self) ->&T

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

fnborrow_mut(&mut self) ->&mut T

impl<T>CloneToUninit for Twhere T:Clone,

unsafe fnclone_to_uninit(&self, dest:*mutu8)

impl<T>From<T> for T

fnfrom(t: T) -> T

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

fninto(self) -> U

impl<T>ToOwned for Twhere T:Clone,

typeOwned = T

fnto_owned(&self) -> T

fnclone_into(&self, target:&mut T)

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

typeError =Infallible

fntry_from(value: U) ->Result<T, <T asTryFrom<U>>::Error>

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

typeError = <U asTryFrom<T>>::Error

fntry_into(self) ->Result<U, <U asTryFrom<T>>::Error>

EnumIntErrorKind

fnhash<H>(&self, state:&mut H)
where __H:Hasher,

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

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>CloneToUninit for T
where T:Clone,

unsafe fnclone_to_uninit(&self, dest:*mut u8)

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

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

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

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