Function mdbx_ffi::mdbx_get_equal_or_great

pub unsafe extern "C" fn mdbx_get_equal_or_great(
    txn: *mut MDBX_txn, 
    dbi: MDBX_dbi, 
    key: *mut MDBX_val, 
    data: *mut MDBX_val
) -> c_int