[][src]Struct std::ffi::FromVecWithNulError

pub struct FromVecWithNulError { /* fields omitted */ }
🔬 This is a nightly-only experimental API. (cstring_from_vec_with_nul #73179)

An error indicating that a nul byte was not in the expected position.

The vector used to create a CString must have one and only one nul byte, positioned at the end.

This error is created by the from_vec_with_nul method on CString. See its documentation for more.

Examples

#![feature(cstring_from_vec_with_nul)]
use std::ffi::{CString, FromVecWithNulError};

let _: FromVecWithNulError = CString::from_vec_with_nul(b"f\0oo".to_vec()).unwrap_err();
Run

Implementations

impl FromVecWithNulError[src]

pub fn as_bytes(&self) -> &[u8]

Important traits for &'_ [u8]

impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]
[src]

🔬 This is a nightly-only experimental API. (cstring_from_vec_with_nul #73179)

Returns a slice of u8s bytes that were attempted to convert to a CString.

Examples

Basic usage:

#![feature(cstring_from_vec_with_nul)]
use std::ffi::CString;

// Some invalid bytes in a vector
let bytes = b"f\0oo".to_vec();

let value = CString::from_vec_with_nul(bytes.clone());

assert_eq!(&bytes[..], value.unwrap_err().as_bytes());
Run

pub fn into_bytes(self) -> Vec<u8>

Important traits for Vec<u8>

impl Write for Vec<u8>
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🔬 This is a nightly-only experimental API. (cstring_from_vec_with_nul #73179)

Returns the bytes that were attempted to convert to a CString.

This method is carefully constructed to avoid allocation. It will consume the error, moving out the bytes, so that a copy of the bytes does not need to be made.

Examples

Basic usage:

#![feature(cstring_from_vec_with_nul)]
use std::ffi::CString;

// Some invalid bytes in a vector
let bytes = b"f\0oo".to_vec();

let value = CString::from_vec_with_nul(bytes.clone());

assert_eq!(bytes, value.unwrap_err().into_bytes());
Run

Trait Implementations

impl Clone for FromVecWithNulError[src]

impl Debug for FromVecWithNulError[src]

impl Display for FromVecWithNulError[src]

impl Eq for FromVecWithNulError[src]

impl Error for FromVecWithNulError[src]

impl PartialEq<FromVecWithNulError> for FromVecWithNulError[src]

impl StructuralEq for FromVecWithNulError[src]

impl StructuralPartialEq for FromVecWithNulError[src]

Auto Trait Implementations

impl RefUnwindSafe for FromVecWithNulError

impl Send for FromVecWithNulError

impl Sync for FromVecWithNulError

impl Unpin for FromVecWithNulError

impl UnwindSafe for FromVecWithNulError

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

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

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.