Dedicated implementations for scalar dual numbers (#68)

itt-ustutt · May 31, 2023 · 836c1a2 · 836c1a2
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.7.1] - 2023-05-31
+### Fixed
+- Added dedicated implementations for scalar dual numbers (`Dual`, `Dual2`, `HyperDual`) to avoid a performance regression introduced in `0.7.0`. [#68](https://github.com/itt-ustutt/num-dual/pull/68)
+
 ## [0.7.0] - 2023-05-29
 ### Added
 - Added new `HyerHyperDual` number for the calculation of third partial derivatives. [#51](https://github.com/itt-ustutt/num-dual/pull/51)

diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "num-dual"
-version = "0.7.0"
+version = "0.7.1"
 authors = ["Gernot Bauer <bauer@itt.uni-stuttgart.de>",
            "Philipp Rehner <prehner@ethz.ch>"]
 edition = "2018"

diff --git a/benches/benchmark.rs b/benches/benchmark.rs
@@ -67,7 +67,7 @@ fn criterion_benchmark(c: &mut Criterion) {
     {
         let mut group = c.benchmark_group("Hard sphere contribution");
         group.bench_function("f64", |b| b.iter(|| bench(1.0)));
-        group.bench_function("Dual64", |b| b.iter(|| bench(Dual64::new_scalar(1.0, 1.0))));
+        group.bench_function("Dual64", |b| b.iter(|| bench(Dual64::new(1.0, 1.0))));
         group.bench_function("DualVec64<2>", |b| {
             b.iter(|| {
                 bench(DualVec::new(