More things, better things, awesome

src/approx.rs

@@ -0,0 +1,43 @@
+use approx::{AbsDiffEq, RelativeEq, UlpsEq};
+
+use crate::gaussian::Gaussian;
+
+impl AbsDiffEq for Gaussian {
+    type Epsilon = <f64 as AbsDiffEq>::Epsilon;
+
+    fn default_epsilon() -> Self::Epsilon {
+        f64::default_epsilon()
+    }
+
+    fn abs_diff_eq(&self, other: &Self, epsilon: Self::Epsilon) -> bool {
+        f64::abs_diff_eq(&self.mu, &other.mu, epsilon)
+            && f64::abs_diff_eq(&self.sigma, &other.sigma, epsilon)
+    }
+}
+
+impl RelativeEq for Gaussian {
+    fn default_max_relative() -> Self::Epsilon {
+        f64::default_max_relative()
+    }
+
+    fn relative_eq(
+        &self,
+        other: &Self,
+        epsilon: Self::Epsilon,
+        max_relative: Self::Epsilon,
+    ) -> bool {
+        f64::relative_eq(&self.mu, &other.mu, epsilon, max_relative)
+            && f64::relative_eq(&self.sigma, &other.sigma, epsilon, max_relative)
+    }
+}
+
+impl UlpsEq for Gaussian {
+    fn default_max_ulps() -> u32 {
+        f64::default_max_ulps()
+    }
+
+    fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
+        f64::ulps_eq(&self.mu, &other.mu, epsilon, max_ulps)
+            && f64::ulps_eq(&self.sigma, &other.sigma, epsilon, max_ulps)
+    }
+}