bits_are_zero.rs
1 // Copyright (c) 2019-2025 Alpha-Delta Network Inc. 2 // This file is part of the alphavm 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 16 use super::*; 17 18 impl<E: Environment> Boolean<E> { 19 /// Asserts that all bits in `bits_le` are zero. 20 #[doc(hidden)] 21 pub fn assert_bits_are_zero(bits_le: &[Boolean<E>]) { 22 let mut sum = Self::constant(false).0; 23 for bit in bits_le { 24 sum += &**bit; 25 } 26 E::assert_eq(sum, E::zero()); 27 } 28 }