Enum gkquad::RuntimeError

#[non_exhaustive]
pub enum RuntimeError {
    InsufficientIteration,
    RoundoffError,
    SubrangeTooSmall,
    Divergent,
    NanValueEncountered,
}

calculation error information occured during integration.

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.

InsufficientIteration

The maximum number of subdivisions has been achieved. If increasing the limit results in no further improvement, check the integrand in order to determine the difficulties. If the function contains the singular points in the range, you should specify the singular points by hand, or transform the function to eliminate the singular points.

RoundoffError

Cannot reach tolerance because of roundoff error, which prevents the given tolerance from being achieved. It is assumed that the requested tolerance cannot be achieved, and that the returned result is the bst which can be obtained.

SubrangeTooSmall

Subrange was too small to calculate the integral. Maybe you should specify the singular points, or transform the function to eliminate the singular points.

Divergent

Integral is divergent, or slowly convergent. Delta (estimation of absolute error) may be underestimated.

NanValueEncountered

Integrand has returned a NAN value, so the algorithm cannot continue the calculation.

Trait Implementations

impl Clone for RuntimeError

fn clone(&self) -> RuntimeError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for RuntimeError

impl Debug for RuntimeError

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

Formats the value using the given formatter.

impl Display for RuntimeError

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

Formats the value using the given formatter.

impl Eq for RuntimeError

impl Error for RuntimeError

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl Hash for RuntimeError

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl PartialEq<RuntimeError> for RuntimeError

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

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

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for RuntimeError

impl StructuralPartialEq for RuntimeError