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fixed div_floor sign handling

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This commit is contained in:
Jean-Philippe Bossuat
2025-01-08 11:09:10 +01:00
parent 160e7a33da
commit be87ac6ae7
1 changed files with 1 additions and 2 deletions
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3
math/src/num_bigint.rs
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@@ -1,5 +1,4 @@
use num_bigint::BigInt; use num_bigint::BigInt;
use num_bigint::Sign;
use num_integer::Integer; use num_integer::Integer;
use num_traits::{One, Signed, Zero}; use num_traits::{One, Signed, Zero};
@@ -11,7 +10,7 @@ pub trait Div {
impl Div for BigInt { impl Div for BigInt {
fn div_floor(&self, other: &Self) -> Self { fn div_floor(&self, other: &Self) -> Self {
let quo: BigInt = self / other; let quo: BigInt = self / other;
if self.sign() == Sign::Minus { if self.sign() != other.sign() {
return quo - BigInt::one(); return quo - BigInt::one();
} }
return quo; return quo;