Enum IntErrorKind 

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

Enum to store the various types of errors that can cause parsing or converting 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)

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

Value being parsed is empty.

This variant will be constructed when parsing an empty string.

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.

PosOverflow

Integer is too large to store in target integer type.

NegOverflow

Integer is too small to store in target integer type.

Zero

Value was Zero

This variant will be emitted when the parsing string or the converting integer has a value of zero, which would be illegal for non-zero types.

NotAPowerOfTwo

🔬This is a nightly-only experimental API. (try_from_int_error_kind #153978)

Value is not a power of two.

This variant will be emitted when converting an integer that is not a power of two. This is required in some cases such as constructing an Alignment.

Trait Implementations

impl Clone for IntErrorKind

fn clone(&self) -> IntErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IntErrorKind

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

Formats the value using the given formatter.

impl Hash for IntErrorKind

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for IntErrorKind

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

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

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

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

impl Copy for IntErrorKind

impl Eq for IntErrorKind

impl StructuralPartialEq for IntErrorKind