Function libsodium_sys::crypto_box_curve25519xsalsa20poly1305

pub unsafe extern fn crypto_box_curve25519xsalsa20poly1305(c: *mut u8,
                                                           m: *const u8,
                                                           mlen: c_ulonglong,
                                                           n: *const [u8; 24],
                                                           pk: *const [u8; 32],
                                                           sk: *const [u8; 32])
                                                           -> c_int