Struct std::ffi::NulError

pub struct NulError(_, _);

An error returned from CString::new to indicate that a nul byte was found in the vector provided.

Methods

impl NulError

fn nul_position(&self) -> usize

Returns the position of the nul byte in the slice that was provided to CString::new.

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);

fn into_vec(self) -> Vec<u8>

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

Examples

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

fn clone(&self) -> NulError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq for NulError

fn eq(&self, __arg_0: &NulError) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &NulError) -> bool

This method tests for !=.

impl Eq for NulError

impl Debug for NulError

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Error for NulError

fn description(&self) -> &str

A short description of the error.

fn cause(&self) -> Option<&Error>

The lower-level cause of this error, if any.

impl Display for NulError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.