pub struct NulError(/* private fields */);
Available on crate feature
alloc
only.Expand description
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();
Implementations§
Source§impl NulError
impl NulError
1.0.0 · Sourcepub fn nul_position(&self) -> usize ⓘ
pub fn nul_position(&self) -> usize ⓘ
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);
Trait Implementations§
1.0.0 · Source§impl Error for NulError
impl Error for NulError
Source§fn description(&self) -> &str ⓘ
fn description(&self) -> &str ⓘ
👎Deprecated since 1.42.0: use the Display impl or to_string()
1.30.0 · Source§fn source(&self) -> Option<&(dyn Error + 'static)> ⓘ
fn source(&self) -> Option<&(dyn Error + 'static)> ⓘ
Returns the lower-level source of this error, if any. Read more
§impl From<NulError> for ShaderError
impl From<NulError> for ShaderError
§fn from(e: NulError) -> ShaderError
fn from(e: NulError) -> ShaderError
Converts to this type from the input type.
§impl PyErrArguments for NulError
impl PyErrArguments for NulError
impl Eq for NulError
impl StructuralPartialEq for NulError
Auto Trait Implementations§
impl Freeze for NulError
impl RefUnwindSafe for NulError
impl Send for NulError
impl Sync for NulError
impl Unpin for NulError
impl UnwindSafe for NulError
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