Trait ErrnoSentinel

pub trait ErrnoSentinel: Sized {
    // Required method
    fn sentinel() -> Self;
}

The sentinel value indicates that a function failed and more detailed information about the error can be found in errno

Required Methods

fn sentinel() -> Self

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl ErrnoSentinel for i32

fn sentinel() -> Self

impl ErrnoSentinel for i64

fn sentinel() -> Self

impl ErrnoSentinel for isize

fn sentinel() -> Self

impl ErrnoSentinel for *mut c_void

fn sentinel() -> Self

impl ErrnoSentinel for sighandler_t

fn sentinel() -> Self

Implementors