Buffer api

src/buffer/mod.rs

@@ -1,17 +1,30 @@
-use core::str;
+use core::{mem, str};
 
 use pretty;
 
+#[derive(Copy, Clone)]
 pub struct Buffer {
     bytes: [u8; 24],
 }
 
 impl Buffer {
-    pub fn write<F: Float>(&mut self, f: F) -> &str {
+    pub fn new() -> Self {
+        Buffer {
+            bytes: unsafe { mem::uninitialized() },
+        }
+    }
+
+    pub fn format<F: Float>(&mut self, f: F) -> &str {
         f.write_to_ryu_buffer(self)
     }
 }
 
+impl Default for Buffer {
+    fn default() -> Self {
+        Buffer::new()
+    }
+}
+
 pub trait Float: Sealed {
     #[doc(hidden)]
     fn write_to_ryu_buffer(self, buffer: &mut Buffer) -> &str;