Struct std::ffi::NulError1.0.0[][src]

pub struct NulError(_, _);

An error indicating that an interior nul byte was found.

While Rust strings may contain nul bytes in the middle, C strings can’t, as that byte would effectively truncate the string.

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


use std::ffi::{CString, NulError};

let _: NulError = CString::new(b"f\0oo".to_vec()).unwrap_err();


impl NulError[src]

pub fn nul_position(&self) -> usize[src]

Returns the position of the nul byte in the slice that caused CString::new to fail.


use std::ffi::CString;

let nul_error = CString::new("foo\0bar").unwrap_err();
assert_eq!(nul_error.nul_position(), 3);

let nul_error = CString::new("foo bar\0").unwrap_err();
assert_eq!(nul_error.nul_position(), 7);

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

Notable traits for Vec<u8, A>

impl<A: Allocator> Write for Vec<u8, A>

Consumes this error, returning the underlying vector of bytes which generated the error in the first place.


use std::ffi::CString;

let nul_error = CString::new("foo\0bar").unwrap_err();
assert_eq!(nul_error.into_vec(), b"foo\0bar");

Trait Implementations

impl Clone for NulError[src]

impl Debug for NulError[src]

impl Display for NulError[src]

impl Error for NulError[src]

impl From<NulError> for Error[src]

fn from(_: NulError) -> Error[src]

Converts a NulError into a io::Error.

impl PartialEq<NulError> for NulError[src]

impl Eq for NulError[src]

impl StructuralEq for NulError[src]

impl StructuralPartialEq for NulError[src]

Auto Trait Implementations

impl RefUnwindSafe for NulError

impl Send for NulError

impl Sync for NulError

impl Unpin for NulError

impl UnwindSafe for NulError

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.