1.0.0[−][src]Struct std::ffi::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.
Examples
use std::ffi::{CString, NulError}; let _: NulError = CString::new(b"f\0oo".to_vec()).unwrap_err();Run
Methods
impl NulError
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pub fn nul_position(&self) -> usize
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Returns the position of the nul byte in the slice that caused
CString::new
to fail.
Examples
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);Run
pub fn into_vec(self) -> Vec<u8>
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Trait Implementations
impl Error for NulError
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fn description(&self) -> &str
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fn cause(&self) -> Option<&dyn Error>
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fn source(&self) -> Option<&(dyn Error + 'static)>
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fn backtrace(&self) -> Option<&Backtrace>
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impl From<NulError> for Error
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impl PartialEq<NulError> for NulError
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impl Eq for NulError
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impl Debug for NulError
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impl Display for NulError
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impl Clone for NulError
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Auto Trait Implementations
impl UnwindSafe for NulError
impl RefUnwindSafe for NulError
impl Unpin for NulError
impl Send for NulError
impl Sync for NulError
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
ⓘImportant traits for &'_ mut Ffn borrow_mut(&mut self) -> &mut T
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ⓘImportant traits for &'_ mut F
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,