Struct `Error`

pub struct Error(/* private field */);

A small and no_std compatible error type

The [Error::raw_os_error()] will indicate if the error is from the OS, and if so, which error code the OS gave the application. If such an error is encountered, please consult with your system documentation.

If this crate's "std" Cargo feature is enabled, then:

[getrandom::Error][Error] implements std::error::Error
std::io::Error implements From<getrandom::Error>.

Implementations

`impl Error`

const UNSUPPORTED: Error = _;

This target/platform is not supported by getrandom.

const ERRNO_NOT_POSITIVE: Error = _;

The platform-specific errno returned a non-positive value.

const UNEXPECTED: Error = _;

Encountered an unexpected situation which should not happen in practice.

fn raw_os_error(self) -> Option<RawOsError>

Extract the raw OS error code (if this error came from the OS)

This method is identical to std::io::Error::raw_os_error(), except that it works in no_std contexts. On most targets this method returns Option<i32>, but some platforms (e.g. UEFI) may use a different primitive type like usize. Consult with the RawOsError docs for more information.

If this method returns None, the error value can still be formatted via the Display implementation.

const fn new_custom(n: u16) -> Error

Creates a new instance of an Error from a particular custom error code.

Trait Implementations

`impl Clone for Error`

fn clone(&self) -> Error

`impl Copy for Error`

`impl Debug for Error`

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

`impl Display for Error`

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

`impl Eq for Error`

`impl Error for Error`

`impl PartialEq for Error`

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

`impl StructuralPartialEq for Error`

Auto Trait Implementations

`impl Freeze for Error`

`impl RefUnwindSafe for Error`

`impl Send for Error`

`impl Sync for Error`

`impl Unpin for Error`

`impl UnsafeUnpin for Error`

`impl UnwindSafe for Error`

Blanket Implementations

`impl<T> Any for Error where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for Error where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for Error where T: ?Sized,`

fn borrow_mut(&mut self) -> &mut T

`impl<T> CloneToUninit for Error where T: Clone,`

unsafe fn clone_to_uninit(&self, dest: *mut u8)

`impl<T> From<T> for Error`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> ToOwned for Error where T: Clone,`

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

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

fn to_string(&self) -> String

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

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

type Error = never;
fn try_from(value: U) -> Result<T, never>

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

type Error = >::Error;
fn try_into(self) -> Result<U, >::Error>