Assertions

Author: kornelski

src/kmeans.rs

@@ -94,6 +94,7 @@ impl Kmeans {
             if adjust_weight {
                 let remapped = colors[matched as usize];
                 let (_, new_diff) = n.search(&f_pixel(px.0 + px.0 - remapped.0), matched);
+                debug_assert!(new_diff.is_finite());
                 diff = new_diff;
                 item.adjusted_weight = 2.0f32.mul_add(item.adjusted_weight, item.perceptual_weight) * (0.5 + diff);
             }

src/lib.rs

@@ -311,13 +311,15 @@ impl Ord for OrdFloat<f64> {
 }
 
 impl OrdFloat<f32> {
+    #[cfg_attr(debug_assertions, track_caller)]
     pub fn new(v: f32) -> Self {
         debug_assert!(v.is_finite());
         Self(v)
     }
 }
 
 impl OrdFloat<f64> {
+    #[cfg_attr(debug_assertions, track_caller)]
     pub fn new64(v: f64) -> Self {
         debug_assert!(v.is_finite());
         Self(v)

src/mediancut.rs

@@ -42,6 +42,7 @@ impl<'hist> MBox<'hist> {
 
     fn new_inner(hist: &'hist mut [HistItem], adjusted_weight_sum: f64, avg_color: f_pixel) -> Self {
         let (variance, max_error) = Self::box_stats(hist, avg_color);
+        debug_assert!(adjusted_weight_sum.is_finite());
         Self {
             variance,
             max_error,
@@ -311,6 +312,7 @@ fn weighed_average_color(hist: &[HistItem]) -> f_pixel {
         sum += c.adjusted_weight;
         t.0 += c.color.0 * c.adjusted_weight;
     }
+    debug_assert!(sum.is_finite());
     if sum != 0. {
         t.0 /= sum;
     }