Type Alias __io_read_fn

pub type __io_read_fn = Option<unsafe extern "C" fn(__cookie: *mut c_void, __buf: *mut c_char, __nbytes: size_t) -> __ssize_t>;

Aliased Type

enum __io_read_fn {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: *mut i8, _: u64) -> i64),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: *mut i8, _: u64) -> i64)

Some value of type T.