Struct scale_info::prelude::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.

Example

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

Implementations

impl ParseIntError

pub fn kind(&self) -> &IntErrorKind

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

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

pub fn clone(&self) -> ParseIntError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ParseIntError

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

Formats the value using the given formatter.

impl Display for ParseIntError

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

Formats the value using the given formatter.

impl Eq for ParseIntError

impl Error for ParseIntError

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

pub fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

pub fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl PartialEq<ParseIntError> for ParseIntError

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

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

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

This method tests for !=.

impl StructuralEq for ParseIntError

impl StructuralPartialEq for ParseIntError