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.
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
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. Read more
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
impl Debug for ParseIntError
pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
impl Display for ParseIntError
pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
impl Error for ParseIntError
fn description(&self) -> &str
use the Display impl or to_string()
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
fn backtrace(&self) -> Option<&Backtrace>
Returns a stack backtrace, if available, of where this error occurred. Read more
fn cause(&self) -> Option<&dyn Error>
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 ==. Read more
pub fn ne(&self, other: &ParseIntError) -> bool
This method tests for !=.
impl Eq for ParseIntError
impl StructuralEq for ParseIntError
impl StructuralPartialEq for ParseIntError
Auto Trait Implementations
impl RefUnwindSafe for ParseIntError
impl Send for ParseIntError
impl Sync for ParseIntError
impl Unpin for ParseIntError
impl UnwindSafe for ParseIntError
Blanket Implementations
impl<T> From<T> for T
pub fn from(t: T) -> T
Performs the conversion.
pub fn into(self) -> U
Performs the conversion.
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
toowned_clone_into #41263)recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
Performs the conversion.
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
Performs the conversion.
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/num/struct.ParseIntError.html