snarkvm-gadgets 0.8.0

Gadgets for a decentralized virtual machine
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

// Copyright (C) 2019-2021 Aleo Systems Inc.
// This file is part of the snarkVM library.

// The snarkVM library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// The snarkVM library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with the snarkVM library. If not, see <https://www.gnu.org/licenses/>.

use crate::{integers::uint::*, traits::integers::Add, UnsignedIntegerError};
use snarkvm_fields::{Field, PrimeField};
use snarkvm_r1cs::ConstraintSystem;

// Implement unsigned integers
macro_rules! add_uint_impl {
    ($($gadget: ident),*) => ($(
        impl<F: Field + PrimeField> Add<F> for $gadget {
            type ErrorType = UnsignedIntegerError;

            fn add<CS: ConstraintSystem<F>>(
                &self,
                cs: CS,
                other: &Self
            ) -> Result<Self, Self::ErrorType> {
                <$gadget as UInt>::addmany(cs, &[self.clone(), other.clone()]).map_err(Self::ErrorType::SynthesisError)
            }
        }
    )*)
}

add_uint_impl!(UInt8, UInt16, UInt32, UInt64, UInt128);