Struct errno::Errno

pub struct Errno(pub i32);

Wraps a platform-specific error code.

The Display instance maps the code to a human-readable string. It calls strerror_r under POSIX, and FormatMessageW on Windows.

Trait Implementations

impl Clone for Errno

fn clone(&self) -> Errno

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Errno

impl Debug for Errno

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

Formats the value using the given formatter.

impl Display for Errno

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

Formats the value using the given formatter.

impl Eq for Errno

impl Error for Errno

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

impl From<Errno> for Error

fn from(errno: Errno) -> Self

Performs the conversion.

impl Hash for Errno

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 Into<i32> for Errno

fn into(self) -> i32

Performs the conversion.

impl Ord for Errno

fn cmp(&self, other: &Errno) -> Ordering

This method returns an Ordering between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl PartialEq<Errno> for Errno

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

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

fn ne(&self, other: &Errno) -> bool

This method tests for !=.

impl PartialOrd<Errno> for Errno

fn partial_cmp(&self, other: &Errno) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Errno) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Errno) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Errno) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Errno) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for Errno

impl StructuralPartialEq for Errno