snarkvm_console_program/data/ciphertext/
equal.rs

1// Copyright 2024 Aleo Network Foundation
2// This file is part of the snarkVM library.
3
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at:
7
8// http://www.apache.org/licenses/LICENSE-2.0
9
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15
16use super::*;
17
18impl<N: Network> Eq for Ciphertext<N> {}
19
20impl<N: Network> PartialEq for Ciphertext<N> {
21    /// Returns `true` if `self` and `other` are equal.
22    fn eq(&self, other: &Self) -> bool {
23        *self.is_equal(other)
24    }
25}
26
27impl<N: Network> Equal<Self> for Ciphertext<N> {
28    type Output = Boolean<N>;
29
30    /// Returns `true` if `self` and `other` are equal.
31    fn is_equal(&self, other: &Self) -> Self::Output {
32        // Ensure that the ciphertexts have the same number of field elements.
33        if self.0.len() != other.0.len() {
34            return Boolean::new(false);
35        }
36
37        // Check each field element for equality.
38        if self.0.iter().zip_eq(other.0.iter()).all(|(a, b)| *a.is_equal(b)) {
39            Boolean::new(true)
40        } else {
41            Boolean::new(false)
42        }
43    }
44
45    /// Returns `true` if `self` and `other` are *not* equal.
46    fn is_not_equal(&self, other: &Self) -> Self::Output {
47        !self.is_equal(other)
48    }
49}