chore(math): replace malachite lib with dashu (#542)

pallas-math/Cargo.toml

@@ -12,8 +12,8 @@ authors = ["Andrew Westberg <[email protected]>"]
 exclude = ["tests/data/*"]
 
 [dependencies]
-malachite = "0.4.16"
-malachite-base = "0.4.16"
+dashu-int = "0.4.1"
+dashu-base = "0.4.1"
 regex = "1.10.5"
 thiserror = "1.0.61"
 

pallas-math/src/lib.rs

@@ -1,2 +1,2 @@
 pub mod math;
-pub mod math_malachite;
+pub mod math_dashu;

pallas-math/src/math.rs

@@ -7,7 +7,7 @@ use std::ops::{Div, Mul, Neg, Sub};
 use std::sync::LazyLock;
 use thiserror::Error;
 
-pub type FixedDecimal = crate::math_malachite::Decimal;
+pub type FixedDecimal = crate::math_dashu::Decimal;
 
 pub static ZERO: LazyLock<FixedDecimal> = LazyLock::new(|| FixedDecimal::from(0u64));
 pub static MINUS_ONE: LazyLock<FixedDecimal> = LazyLock::new(|| FixedDecimal::from(-1i64));
@@ -95,7 +95,7 @@ pub struct ExpCmpOrdering {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use malachite_base::num::arithmetic::traits::Abs;
+    use dashu_base::Abs;
     use proptest::prelude::Strategy;
     use proptest::proptest;
     use std::fs::File;