pub type HashCompareFunc = Option<unsafe extern "C-unwind" fn(key1: *const c_void, key2: *const c_void, keysize: Size) -> c_int>;Aliased Type§
enum HashCompareFunc {
None,
Some(unsafe extern "C-unwind" fn(_: *const c_void, _: *const c_void, _: usize) -> i32),
}