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[src] 
impl NulErrorpub fn nul_position(&self) -> usize[src] 
pub fn nul_position(&self) -> usizeReturns 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>[src] 
pub fn into_vec(self) -> Vec<u8>Trait Implementations
impl Clone for NulError[src] 
impl Clone for NulErrorfn clone(&self) -> NulError[src] 
fn clone(&self) -> NulErrorReturns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)[src] 
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
impl PartialEq for NulError[src] 
impl PartialEq for NulErrorfn eq(&self, other: &NulError) -> bool[src] 
fn eq(&self, other: &NulError) -> boolThis method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, other: &NulError) -> bool[src] 
fn ne(&self, other: &NulError) -> boolThis method tests for !=.
impl Eq for NulError[src] 
impl Eq for NulErrorimpl Debug for NulError[src] 
impl Debug for NulErrorfn fmt(&self, f: &mut Formatter) -> Result[src] 
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl Error for NulError[src] 
impl Error for NulErrorfn description(&self) -> &str[src] 
fn description(&self) -> &strThis method is soft-deprecated. Read more
fn cause(&self) -> Option<&Error>[src] 
fn cause(&self) -> Option<&Error>: replaced by Error::source, which can support downcasting
The lower-level cause of this error, if any. Read more
fn source(&self) -> Option<&(Error + 'static)>1.30.0[src] 
fn source(&self) -> Option<&(Error + 'static)>The lower-level source of this error, if any. Read more
impl Display for NulError[src] 
impl Display for NulErrorfn fmt(&self, f: &mut Formatter) -> Result[src] 
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl From<NulError> for Error[src] 
impl From<NulError> for ErrorAuto Trait Implementations
Blanket Implementations
impl<T> From for T[src] 
impl<T> From for Timpl<T, U> TryFrom for T where
    T: From<U>, [src] 
impl<T, U> TryFrom for T where
    T: From<U>, type Error = !
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src] 
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>Performs the conversion.
impl<T, U> TryInto for T where
    U: TryFrom<T>, [src] 
impl<T, U> TryInto for T where
    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>[src] 
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>Performs the conversion.
impl<T, U> Into for T where
    U: From<T>, [src] 
impl<T, U> Into for T where
    U: From<T>, impl<T> Borrow for T where
    T: ?Sized, [src] 
impl<T> Borrow for T where
    T: ?Sized, ⓘImportant traits for &'a mut Ifn borrow(&self) -> &T[src] 
fn borrow(&self) -> &TImmutably borrows from an owned value. Read more
impl<T> BorrowMut for T where
    T: ?Sized, [src] 
impl<T> BorrowMut for T where
    T: ?Sized, ⓘImportant traits for &'a mut Ifn borrow_mut(&mut self) -> &mut T[src] 
fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
    T: 'static + ?Sized, [src] 
impl<T> Any for T where
    T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src] 
fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API.  (get_type_id #27745)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<T> ToOwned for T where
    T: Clone, [src] 
impl<T> ToOwned for T where
    T: Clone, type Owned = T
fn to_owned(&self) -> T[src] 
fn to_owned(&self) -> TCreates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)[src] 
fn clone_into(&self, target: &mut T)🔬 This is a nightly-only experimental API.  (toowned_clone_into #41263)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T> ToString for T where
    T: Display + ?Sized, [src] 
impl<T> ToString for T where
    T: Display + ?Sized,