[][src]Struct getrandom::Error

pub struct Error(_);

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.

Internally this type is a NonZeroU32, with certain values reserved for certain purposes, see Error::INTERNAL_START and Error::CUSTOM_START.


impl Error[src]

pub const UNKNOWN: Error[src]

Deprecated since 0.1.7

Unknown error.

pub const UNAVAILABLE: Error[src]

Deprecated since 0.1.7

System entropy source is unavailable.

pub const INTERNAL_START: u32[src]

Codes below this point represent OS Errors (i.e. positive i32 values). Codes at or above this point, but below Error::CUSTOM_START are reserved for use by the rand and getrandom crates.

pub const CUSTOM_START: u32[src]

Codes at or above this point can be used by users to define their own custom errors.

pub fn raw_os_error(self) -> Option<i32>[src]

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

pub fn code(self) -> NonZeroU32[src]

Extract the bare error code.

This code can either come from the underlying OS, or be a custom error. Use Error::raw_os_error() to disambiguate.

Trait Implementations

impl Clone for Error[src]

impl Copy for Error[src]

impl Debug for Error[src]

impl Display for Error[src]

impl Eq for Error[src]

impl Error for Error[src]

impl From<Error> for Error[src]

impl From<Error> for Error[src]

impl From<NonZeroU32> for Error[src]

impl PartialEq<Error> for Error[src]

impl StructuralEq for Error[src]

impl StructuralPartialEq for Error[src]

Auto Trait Implementations

impl RefUnwindSafe for Error

impl Send for Error

impl Sync for Error

impl Unpin for Error

impl UnwindSafe for Error

Blanket Implementations

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

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> From<T> for T[src]

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

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.