# [−][src]Enum core::num::IntErrorKind

    #[non_exhaustive]
    pub enum IntErrorKind {
        Empty,
        InvalidDigit,
        Overflow,
        Underflow,
        Zero,
    }

🔬 This is a nightly-only experimental API. (`int_error_matching` #22639)

it can be useful to match errors when making error messages for integer parsing

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

## Variants (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.
`Empty`
🔬 This is a nightly-only experimental API. (`int_error_matching` #22639)

it can be useful to match errors when making error messages for integer parsing

Value being parsed is empty.

Among other causes, this variant will be constructed when parsing an empty string.

`InvalidDigit`
🔬 This is a nightly-only experimental API. (`int_error_matching` #22639)

it can be useful to match errors when making error messages for integer parsing

Contains an invalid digit.

Among other causes, this variant will be constructed when parsing a string that contains a letter.

`Overflow`
🔬 This is a nightly-only experimental API. (`int_error_matching` #22639)

it can be useful to match errors when making error messages for integer parsing

Integer is too large to store in target integer type.

`Underflow`
🔬 This is a nightly-only experimental API. (`int_error_matching` #22639)

it can be useful to match errors when making error messages for integer parsing

Integer is too small to store in target integer type.

`Zero`
🔬 This is a nightly-only experimental API. (`int_error_matching` #22639)

it can be useful to match errors when making error messages for integer parsing

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

### `impl PartialEq<IntErrorKind> for IntErrorKind`[src]

#### `fn eq(&self, other: &IntErrorKind) -> bool`[src]

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `
#[must_use]
fn ne(&self, other: &Rhs) -> bool` 1.0.0[src]

This method tests for `!=`.

### `impl Eq for IntErrorKind`[src]

### `impl Clone for IntErrorKind`[src]

#### `fn clone(&self) -> IntErrorKind`[src]

Returns a copy of the value. Read more

#### `fn clone_from(&mut self, source: &Self)`1.0.0[src]

Performs copy-assignment from `source`. Read more

### `impl Debug for IntErrorKind`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

Formats the value using the given formatter. Read more

## Auto Trait Implementations

### `impl Send for IntErrorKind`

### `impl Sync for IntErrorKind`

## Blanket Implementations

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `fn into(Self) -> U`[src]

Performs the conversion.

### `impl<T> From<T> for T`[src]

#### `fn from(T) -> T`[src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

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

The type returned in the event of a conversion error.

#### `fn try_into(Self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

Performs the conversion.

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

Performs the conversion.

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `fn borrow(&Self) -> &T`[src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `fn borrow_mut(&mut Self) -> &mut T`[src]

Mutably borrows from an owned value. Read more

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `fn type_id(&Self) -> TypeId`[src]

Gets the `TypeId` of `self`. Read more

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g., `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g., `vec -> usize` or `* -> vec`)

Search multiple things at once by splitting your query with comma (e.g., `str,u8` or `String,struct:Vec,test`)