Struct rug::rational::TryFromFloatError

pub struct TryFromFloatError { /* fields omitted */ }

An error which can be returned when a checked conversion from a floating-point number to a Rational number fails.

Examples

use core::convert::TryFrom;
use rug::{rational::TryFromFloatError, Rational};
// This is not finite and cannot be converted to Rational.
let inf = 1.0f32 / 0.0;
let error: TryFromFloatError = match Rational::try_from(inf) {
    Ok(_) => unreachable!(),
    Err(error) => error,
};
println!("Error: {}", error);

Trait Implementations

impl Clone for TryFromFloatError

fn clone(&self) -> TryFromFloatError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for TryFromFloatError

impl Debug for TryFromFloatError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Display for TryFromFloatError

fn fmt(&self, f: &mut Formatter) -> FmtResult

Formats the value using the given formatter.

impl Error for TryFromFloatError

fn description(&self) -> &str

Deprecated since 1.41.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

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

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

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

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

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting