Add an auto_resize accessor to Histogram (#106)

Author: wcassels

src/lib.rs

@@ -344,6 +344,11 @@ impl<T: Counter> Histogram<T> {
         self.bucket_count
     }
 
+    /// Returns true if this histogram is currently able to auto-resize as new samples are recorded.
+    pub fn is_auto_resize(&self) -> bool {
+        self.auto_resize
+    }
+
     // ********************************************************************************************
     // Methods for looking up the count for a given value/index
     // ********************************************************************************************

tests/auto_resize.rs

@@ -48,3 +48,12 @@ fn autosizing_across_continuous_range() {
         histogram += i;
     }
 }
+
+#[test]
+fn can_acess_autoresize_setting() {
+    let mut histogram = Histogram::<u64>::new(2).unwrap();
+    assert!(histogram.is_auto_resize());
+
+    histogram.auto(false);
+    assert!(!histogram.is_auto_resize());
+}