rely on deriving traits instead

src/buffer.rs

@@ -1,22 +1,12 @@
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Buf {
     pub width: usize,
     pub height: usize,
     pub buf: Vec<f32>,
 }
 
-impl Clone for Buf {
-    fn clone(&self) -> Buf {
-        Buf {
-            width: self.width,
-            height: self.height,
-            buf: self.buf.clone(),
-        }
-    }
-}
-
 impl Buf {
-    pub fn new(width: usize, height: usize, buf: Vec<f32>) -> Self {
+    pub const fn new(width: usize, height: usize, buf: Vec<f32>) -> Self {
         Buf { width, height, buf }
     }