Type Alias CallocFn 

pub type CallocFn = Option<unsafe extern "C" fn(num_items: usize, size: usize) -> *mut c_void>;

Aliased Type

pub enum CallocFn {
    None,
    Some(unsafe extern "C" fn(usize, usize) -> *mut c_void),
}

Variants

None

No value.

Some(unsafe extern "C" fn(usize, usize) -> *mut c_void)

Some value of type T.