1.0.0[][src]Struct std::num::ParseIntError

pub struct ParseIntError { /* fields omitted */ }

An error which can be returned when parsing an integer.

This error is used as the error type for the from_str_radix() functions on the primitive integer types, such as i8::from_str_radix.

Potential causes

Among other causes, ParseIntError can be thrown because of leading or trailing whitespace in the string e.g., when it is obtained from the standard input. Using the str.trim() method ensures that no whitespace remains before parsing.


if let Err(e) = i32::from_str_radix("a12", 10) {
    println!("Failed conversion to i32: {}", e);


impl ParseIntError[src]

pub fn kind(&self) -> &IntErrorKind[src]

🔬 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

Outputs the detailed cause of parsing an integer failing.

Trait Implementations

impl Clone for ParseIntError[src]

impl Debug for ParseIntError[src]

impl Display for ParseIntError[src]

impl Eq for ParseIntError[src]

impl Error for ParseIntError[src]

impl PartialEq<ParseIntError> for ParseIntError[src]

impl StructuralEq for ParseIntError[src]

impl StructuralPartialEq for ParseIntError[src]

Auto Trait Implementations

impl RefUnwindSafe for ParseIntError[src]

impl Send for ParseIntError[src]

impl Sync for ParseIntError[src]

impl Unpin for ParseIntError[src]

impl UnwindSafe for ParseIntError[src]

Blanket Implementations

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> From<T> for T[src]

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

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized

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

type Error = Infallible

The type returned in the event of a conversion error.

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

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

The type returned in the event of a conversion error.