Enum CStrError 

pub enum CStrError {
    CapacityExceeded(BytesError),
    InteriorNul(usize),
    MissingNul,
    NullPointer,
}

Available on crate features types-cstr and types only.

安全 C 字符串的错误类型。

Feature Requirement

需要启用 "types-cstr" 特性。

Examples

use core::convert::TryInto;
use lib_unknown::types::cstr::{CStr, StackCStr};

let s: StackCStr<4> = "hi".try_into().unwrap();
assert_eq!(s.len(), 2);
let res: Result<StackCStr<4>, _> = "toolong".try_into();
assert!(res.is_err());

Variants

CapacityExceeded(BytesError)

长度超出容器容量（含结尾 \0 的总需求超出 N）。

InteriorNul(usize)

载荷内部含 NUL，载荷为 NUL 在载荷内的字节下标。

MissingNul

输入中找不到结尾 NUL（源仍会被清零）。

NullPointer

收到空指针。

Trait Implementations

impl Clone for CStrError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CStrError

impl Debug for CStrError

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

Formats the value using the given formatter.

impl Display for CStrError

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

Formats the value using the given formatter.

impl Eq for CStrError

impl Error for CStrError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for CStrError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CStrError