ErrorHandle

Struct ErrorHandle 

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#[repr(C)]
pub struct ErrorHandle(pub *const c_char);
Expand description

A C-style handle to an error message.

If the handle contains a non-null pointer, an error occurred. cbindgen:field-names=[error_string]

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§0: *const c_char

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impl ErrorHandle

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pub fn new<T: Into<Vec<u8>>>(error_message: T) -> Self

Constructs an ErrorHandle from the specified error message.

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pub fn is_ok(&self) -> bool

Returns true if this error handle doesnt actually contain any error.

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pub fn is_err(&self) -> bool

Returns true if this error handle contains an error

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pub unsafe fn err(&self) -> Option<&CStr>

Returns the error associated with this instance or None if there is no error.

§Safety

If the error contained in this handle has previously been deallocated the data may have been corrupted.

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impl Clone for ErrorHandle

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fn clone(&self) -> ErrorHandle

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Default for ErrorHandle

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T: Into<Vec<u8>>> From<T> for ErrorHandle

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fn from(bytes: T) -> Self

Converts to this type from the input type.
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impl Copy for ErrorHandle

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.