Impl From<C: CountUInt> for counters

CHANGELOG.md

@@ -10,6 +10,14 @@ Versioning](http://semver.org/spec/v2.0.0.html).
 
 ### Added
 
+- `From<C>` for
+  [`ItemsCount`](https://docs.rs/divan/X.Y.Z/divan/counter/struct.ItemsCount.html),
+  [`BytesCount`](https://docs.rs/divan/X.Y.Z/divan/counter/struct.BytesCount.html),
+  and
+  [`CharsCount`](https://docs.rs/divan/X.Y.Z/divan/counter/struct.CharsCount.html)
+  where `C` is `u8`–`u64` or `usize` (via `CountUInt` internally). This provides
+  an alternative to the `new` constructor.
+
 - [`BytesCount::of_many`](https://docs.rs/divan/X.Y.Z/divan/counter/struct.BytesCount.html#method.of_many)
   method similar to [`BytesCount::of`](https://docs.rs/divan/0.1/divan/counter/struct.BytesCount.html#method.of),
   but with a parameter by which to multiply the size of the type.

src/counter/mod.rs

@@ -82,6 +82,27 @@ impl Counter for BytesCount {}
 impl Counter for CharsCount {}
 impl Counter for ItemsCount {}
 
+impl<C: CountUInt> From<C> for BytesCount {
+    #[inline]
+    fn from(count: C) -> Self {
+        Self::new(count)
+    }
+}
+
+impl<C: CountUInt> From<C> for CharsCount {
+    #[inline]
+    fn from(count: C) -> Self {
+        Self::new(count)
+    }
+}
+
+impl<C: CountUInt> From<C> for ItemsCount {
+    #[inline]
+    fn from(count: C) -> Self {
+        Self::new(count)
+    }
+}
+
 impl BytesCount {
     /// Count N bytes.
     #[inline]