Type Alias MDB_assert_func 

pub type MDB_assert_func = Option<unsafe extern "C" fn(env: *mut MDB_env, msg: *const c_char)>;

Aliased Type

pub enum MDB_assert_func {
    None,
    Some(unsafe extern "C" fn(*mut MDB_env, *const i8)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut MDB_env, *const i8))

Some value of type T.