Spracherkennung für: .rs vermutete Sprache: Unknown {[0] [0] [0]} [Methode: Schwerpunktbildung, einfache Gewichte, sechs Dimensionen]
// Copyright
2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
//
http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version
2.
0 <LICENSE-APACHE or
//
http://www.apache.org/licenses/LICENSE-2.
0> or the MIT license
// <LICENSE-MIT or
http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use super::sip128::{Hasher128, SipHasher, SipHasher13, SipHasher24};
use std::hash::{Hash, Hasher};
// Hash just the bytes of the slice, without length prefix
struct Bytes<'a>(&'a [u8]);
impl<'a> Hash for Bytes<'a> {
#[allow(unused_must_use)]
fn hash<H: Hasher>(&self, state: &mut H) {
let Bytes(v) = *self;
state.write(v);
}
}
fn hash_with<H: Hasher + Hasher128, T: Hash>(mut st: H, x: &T) -> [u8;
16] {
x.hash(&mut st);
st.finish128().as_bytes()
}
fn hash<T: Hash>(x: &T) -> [u8;
16] {
hash_with(SipHasher::new(), x)
}
#[test]
#[allow(unused_must_use)]
fn test_siphash128_1_3() {
let vecs: [[u8;
16];
1] = [[
231,
126,
188,
178,
39,
136,
165,
190,
253,
98,
219,
106,
221,
48,
48,
1,
]];
let k0 =
0x_07_06_05_04_03_02_01_00;
let k1 =
0x_0f_0e_0d_0c_0b_0a_09_08;
let mut buf = Vec::new();
let mut t =
0;
let mut state_inc = SipHasher13::new_with_keys(k0, k1);
while t <
1 {
let vec = vecs[t];
let out = hash_with(SipHasher13::new_with_keys(k0, k1), &Bytes(&buf));
assert_eq!(vec, out[..]);
let full = hash_with(SipHasher13::new_with_keys(k0, k1), &Bytes(&buf));
let i = state_inc.finish128().as_bytes();
assert_eq!(full, i);
assert_eq!(full, vec);
buf.push(t as u8);
Hasher::write(&mut state_inc, &[t as u8]);
t +=
1;
}
}
#[test]
#[allow(unused_must_use)]
fn test_siphash128_2_4() {
let vecs: [[u8;
16];
1] = [[
163,
129,
127,
4,
186,
37,
168,
230,
109,
246,
114,
20,
199,
85,
2,
147,
]];
let k0 =
0x_07_06_05_04_03_02_01_00;
let k1 =
0x_0f_0e_0d_0c_0b_0a_09_08;
let mut buf = Vec::new();
let mut t =
0;
let mut state_inc = SipHasher24::new_with_keys(k0, k1);
while t <
1 {
let vec = vecs[t];
let out = hash_with(SipHasher24::new_with_keys(k0, k1), &Bytes(&buf));
assert_eq!(vec, out[..]);
let full = hash_with(SipHasher24::new_with_keys(k0, k1), &Bytes(&buf));
let i = state_inc.finish128().as_bytes();
assert_eq!(full, i);
assert_eq!(full, vec);
buf.push(t as u8);
Hasher::write(&mut state_inc, &[t as u8]);
t +=
1;
}
}
#[test]
fn test_siphash128_serde() {
let val64 =
0xdead_beef_dead_beef_u64;
let hash = hash(&val64);
let serialized = serde_json::to_string(&hash).unwrap();
let deserialized: [u8;
16] = serde_json::from_str(&serialized).unwrap();
assert_eq!(hash, deserialized);
}