IntErrorKind in core::num - Rust
Description: Enum to store the various types of errors that can cause parsing an integer to fail.

# Enum IntErrorKind

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 let Err(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 that contains a non-ASCII char.

This variant is also constructed when a `+` or `-` is misplaced within a string either 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, which would be illegal for non-zero types.

## Trait Implementations§

1.55.0 · Source§

### impl Clone for IntErrorKind

Source§

#### fn clone(&self) -> IntErrorKind

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from `source`. Read more
1.55.0 · Source§

### impl Debug for IntErrorKind

Source§

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

Formats the value using the given formatter. Read more
1.55.0 · Source§

### impl PartialEq for IntErrorKind

Source§

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

Tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 · Source§

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

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

### impl Eq for IntErrorKind

1.55.0 · Source§

### impl StructuralPartialEq for IntErrorKind

## Auto Trait Implementations§

§

### impl Freeze for IntErrorKind

§

### impl RefUnwindSafe for IntErrorKind

§

### impl Send for IntErrorKind

§

### impl Sync for IntErrorKind

§

### impl Unpin for IntErrorKind

§

### impl UnwindSafe for IntErrorKind

## 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> CloneToUninit for T
where T: Clone,

Source§

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

🔬This is a nightly-only experimental API. (`clone_to_uninit` #126799)
Performs copy-assignment from `self` to `dest`. 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, U> TryFrom<U> for T
where U: Into<T>,

Source§

#### 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>,

Source§

#### 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.