From bcbb38871de9c83d6a237f12d2ba855406210edb Mon Sep 17 00:00:00 2001
From: MaxOhn <ohn.m@hotmail.de>
Date: Thu, 26 Dec 2024 18:23:17 +0100
Subject: [PATCH] refactor: alternative exp function call

---
 src/osu/difficulty/skills/speed.rs     | 2 +-
 src/taiko/difficulty/skills/stamina.rs | 2 +-
 src/util/special_functions.rs          | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/osu/difficulty/skills/speed.rs b/src/osu/difficulty/skills/speed.rs
index f596450b..a6e0dfc8 100644
--- a/src/osu/difficulty/skills/speed.rs
+++ b/src/osu/difficulty/skills/speed.rs
@@ -73,7 +73,7 @@ impl Speed {
                     .object_strains
                     .iter()
                     .fold(0.0, |sum, strain| {
-                        sum + (1.0 + (-(strain / max_strain * 12.0 - 6.0)).exp()).recip()
+                        sum + (1.0 + f64::exp(-(strain / max_strain * 12.0 - 6.0))).recip()
                     })
             })
     }
diff --git a/src/taiko/difficulty/skills/stamina.rs b/src/taiko/difficulty/skills/stamina.rs
index 7e3300af..16c82172 100644
--- a/src/taiko/difficulty/skills/stamina.rs
+++ b/src/taiko/difficulty/skills/stamina.rs
@@ -121,7 +121,7 @@ impl Skill<'_, Stamina> {
             .unwrap_or(0);
 
         if self.inner.single_color {
-            self.curr_strain() / (1.0 + ((-(index as isize - 10)) as f64 / 2.0).exp())
+            self.curr_strain() / (1.0 + f64::exp((-(index as isize - 10)) as f64 / 2.0))
         } else {
             self.curr_strain()
         }
diff --git a/src/util/special_functions.rs b/src/util/special_functions.rs
index 1e5754f2..3d5abc23 100644
--- a/src/util/special_functions.rs
+++ b/src/util/special_functions.rs
@@ -195,7 +195,7 @@ fn erf_imp(z: f64, mut invert: bool) -> f64 {
             )
         };
 
-        let g = (-z * z).exp() / z;
+        let g = f64::exp(-z * z) / z;
 
         (g * b) + (g * r)
     } else {