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
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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.
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>
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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"); impl Clone for NulError
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fn clone(&self) -> NulError
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source. Read more
impl PartialEq for NulError
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fn eq(&self, __arg_0: &NulError) -> bool
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This method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, __arg_0: &NulError) -> bool
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This method tests for !=.
impl Eq for NulError
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impl Debug for NulError
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl Error for NulError
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fn description(&self) -> &str
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A short description of the error. Read more
fn cause(&self) -> Option<&Error>
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The lower-level cause of this error, if any. Read more
impl Display for NulError
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fn fmt(&self, f: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl From<NulError> for Error
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fn from(_: NulError) -> Error
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Performs the conversion.
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/ffi/struct.NulError.html