pub struct CFRunLoopObserverContext {
    pub version: i64,
    pub info: *mut c_void,
    pub retain: extern "C" fn(_: *const c_void) -> *const c_void,
    pub release: extern "C" fn(_: *const c_void),
    pub copyDescription: extern "C" fn(_: *const c_void) -> *const __CFString,
}

Fields

version: i64info: *mut c_voidretain: extern "C" fn(_: *const c_void) -> *const c_voidrelease: extern "C" fn(_: *const c_void)copyDescription: extern "C" fn(_: *const c_void) -> *const __CFString

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Returns the argument unchanged.

Calls U::from(self).

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

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.