Struct std::ffi::FromVecWithNulError
1.64.0 · source · [−]pub struct FromVecWithNulError { /* private fields */ }
Expand description
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 CString::from_vec_with_nul
method.
See its documentation for more.
Examples
use std::ffi::{CString, FromVecWithNulError};
let _: FromVecWithNulError = CString::from_vec_with_nul(b"f\0oo".to_vec()).unwrap_err();
RunImplementations
1.58.0 · sourceimpl FromVecWithNulError
impl FromVecWithNulError
1.58.0 · sourcepub fn as_bytes(&self) -> &[u8]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
pub fn as_bytes(&self) -> &[u8]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
1.58.0 · sourcepub fn into_bytes(self) -> Vec<u8, Global>ⓘNotable traits for Vec<u8, A>impl<A: Allocator> Write for Vec<u8, A>
pub fn into_bytes(self) -> Vec<u8, Global>ⓘNotable traits for Vec<u8, A>impl<A: Allocator> Write for Vec<u8, A>
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:
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());
RunTrait Implementations
sourceimpl Clone for FromVecWithNulError
impl Clone for FromVecWithNulError
sourcefn clone(&self) -> FromVecWithNulError
fn clone(&self) -> FromVecWithNulError
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for FromVecWithNulError
impl Debug for FromVecWithNulError
1.58.0 · sourceimpl Display for FromVecWithNulError
impl Display for FromVecWithNulError
1.58.0 · sourceimpl Error for FromVecWithNulError
impl Error for FromVecWithNulError
1.30.0 · sourcefn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
sourcefn backtrace(&self) -> Option<&Backtrace>
fn backtrace(&self) -> Option<&Backtrace>
Returns a stack backtrace, if available, of where this error occurred. Read more
1.0.0 · sourcefn description(&self) -> &str
fn description(&self) -> &str
use the Display impl or to_string()
sourceimpl PartialEq<FromVecWithNulError> for FromVecWithNulError
impl PartialEq<FromVecWithNulError> for FromVecWithNulError
sourcefn eq(&self, other: &FromVecWithNulError) -> bool
fn eq(&self, other: &FromVecWithNulError) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &FromVecWithNulError) -> bool
fn ne(&self, other: &FromVecWithNulError) -> bool
This method tests for !=
.
impl Eq for FromVecWithNulError
impl StructuralEq for FromVecWithNulError
impl StructuralPartialEq for FromVecWithNulError
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
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more