Function libsodium_sys::crypto_aead_chacha20poly1305_ietf_decrypt

pub unsafe extern "C" fn crypto_aead_chacha20poly1305_ietf_decrypt(
    m: *mut u8, 
    mlen: *mut c_ulonglong, 
    nsec: *mut [u8; 0], 
    c: *const u8, 
    clen: c_ulonglong, 
    ad: *const u8, 
    adlen: c_ulonglong, 
    npub: *const [u8; 12], 
    k: *const [u8; 32]
) -> c_int