Add ArrayVec::clone() benchmark

Author: barakugav

Cargo.toml

@@ -45,6 +45,10 @@ harness = false
 name = "arraystring"
 harness = false
 
+[[bench]]
+name = "clone"
+harness = false
+
 [features]
 default = ["std"]
 std = []

benches/clone.rs

@@ -0,0 +1,43 @@
+
+extern crate arrayvec;
+#[macro_use] extern crate bencher;
+
+use arrayvec::ArrayVec;
+
+use bencher::Bencher;
+use bencher::black_box;
+
+fn clone_x<const N: usize>(b: &mut Bencher) {
+    let mut v = ArrayVec::<u8, N>::new();
+    v.extend((0..N).map(|x| x as u8));
+    b.iter(|| {
+        black_box(v.clone())
+    });
+    b.bytes = v.len() as u64;
+}
+
+fn clone_8(b: &mut Bencher) {
+    clone_x::<8>(b);
+}
+fn clone_16(b: &mut Bencher) {
+    clone_x::<16>(b);
+}
+fn clone_32(b: &mut Bencher) {
+    clone_x::<32>(b);
+}
+fn clone_64(b: &mut Bencher) {
+    clone_x::<64>(b);
+}
+fn clone_512(b: &mut Bencher) {
+    clone_x::<512>(b);
+}
+
+benchmark_group!(benches,
+                 clone_8,
+                 clone_16,
+                 clone_32,
+                 clone_64,
+                 clone_512
+);
+
+benchmark_main!(benches);